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@@ -0,0 +1,817 @@
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+package com.android.basiclib.cache;
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+
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+import android.content.Context;
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+import android.graphics.Bitmap;
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+import android.graphics.BitmapFactory;
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+import android.graphics.Canvas;
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+import android.graphics.PixelFormat;
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+import android.graphics.drawable.BitmapDrawable;
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+import android.graphics.drawable.Drawable;
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+
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+import com.android.basiclib.utils.CommUtils;
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+
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+import org.json.JSONArray;
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+import org.json.JSONObject;
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+
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+import java.io.BufferedReader;
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+import java.io.BufferedWriter;
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+import java.io.ByteArrayInputStream;
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+import java.io.ByteArrayOutputStream;
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+import java.io.File;
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+import java.io.FileOutputStream;
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+import java.io.FileReader;
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+import java.io.FileWriter;
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+import java.io.IOException;
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+import java.io.ObjectInputStream;
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+import java.io.ObjectOutputStream;
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+import java.io.RandomAccessFile;
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+import java.io.Serializable;
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+import java.util.Collections;
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+import java.util.HashMap;
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+import java.util.Map;
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+import java.util.Set;
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+import java.util.concurrent.atomic.AtomicInteger;
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+import java.util.concurrent.atomic.AtomicLong;
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+
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+/**
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+ * 本地缓存
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+ */
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+
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+public class ACache {
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+
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+ public static final int TIME_HOUR = 60 * 60;
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+ public static final int TIME_DAY = TIME_HOUR * 24;
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+ private static final int MAX_SIZE = 1000 * 1000 * 50; // 50 mb
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+ private static final int MAX_COUNT = Integer.MAX_VALUE; // 不限制存放数据的数量
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+ private static Map<String, ACache> mInstanceMap = new HashMap<String, ACache>();
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+ private ACacheManager mCache;
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+
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+ public static ACache get() {
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+ return get(CommUtils.getContext(), "ACache");
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+ }
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+
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+ public static ACache get(Context ctx) {
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+ return get(ctx, "ACache");
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+ }
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+
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+ public static ACache get(Context ctx, String cacheName) {
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+ File f = new File(ctx.getApplicationContext().getCacheDir(), cacheName);
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+ return get(f, MAX_SIZE, MAX_COUNT);
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+ }
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+
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+ public static ACache get(File cacheDir) {
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+ return get(cacheDir, MAX_SIZE, MAX_COUNT);
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+ }
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+
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+ public static ACache get(Context ctx, long max_zise, int max_count) {
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+ File f = new File(ctx.getCacheDir(), "ACache"); //默认在私有目录的缓存目录
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+ return get(f, max_zise, max_count);
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+ }
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+
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+ public static ACache get(File cacheDir, long max_zise, int max_count) {
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+ ACache manager = mInstanceMap.get(cacheDir.getAbsoluteFile() + myPid());
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+ if (manager == null) {
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+ manager = new ACache(cacheDir, max_zise, max_count);
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+ mInstanceMap.put(cacheDir.getAbsolutePath() + myPid(), manager);
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+ }
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+ return manager;
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+ }
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+
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+ private static String myPid() {
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+ return "_" + android.os.Process.myPid();
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+ }
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+
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+ private ACache(File cacheDir, long max_size, int max_count) {
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+ if (!cacheDir.exists() && !cacheDir.mkdirs()) {
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+ throw new RuntimeException("can't make dirs in "
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+ + cacheDir.getAbsolutePath());
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+ }
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+ mCache = new ACacheManager(cacheDir, max_size, max_count);
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+ }
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+ // =======================================
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+ // ============ String数据 读写 ==============
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+ // =======================================
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+
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+ /**
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+ * 保存 String数据 到 缓存中
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+ *
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+ * @param key 保存的key
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+ * @param value 保存的String数据
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+ */
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+ public void put(String key, String value) {
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+ File file = mCache.newFile(key);
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+ BufferedWriter out = null;
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+ try {
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+ out = new BufferedWriter(new FileWriter(file), 1024);
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+ out.write(value);
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+ } catch (IOException e) {
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+ e.printStackTrace();
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+ } finally {
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+ if (out != null) {
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+ try {
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+ out.flush();
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+ out.close();
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+ } catch (IOException e) {
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+ e.printStackTrace();
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+ }
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+ }
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+ mCache.put(file);
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+ }
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+ }
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+
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+ /**
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+ * 保存 String数据 到 缓存中
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+ *
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+ * @param key 保存的key
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+ * @param value 保存的String数据
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+ * @param saveTime 保存的时间,单位:秒
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+ */
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+ public void put(String key, String value, int saveTime) {
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+ put(key, Utils.newStringWithDateInfo(saveTime, value));
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+ }
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+
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+ /**
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+ * 读取 String数据
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+ *
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+ * @param key
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+ * @return String 数据
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+ */
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+ public String getAsString(String key) {
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+ File file = mCache.get(key);
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+ if (!file.exists())
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+ return null;
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+ boolean removeFile = false;
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+ BufferedReader in = null;
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+ try {
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+ in = new BufferedReader(new FileReader(file));
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+ String readString = "";
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+ String currentLine;
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+ while ((currentLine = in.readLine()) != null) {
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+ readString += currentLine;
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+ }
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+ if (!Utils.isDue(readString)) {
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+ return Utils.clearDateInfo(readString);
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+ } else {
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+ removeFile = true;
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+ return null;
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+ }
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+ } catch (IOException e) {
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+ e.printStackTrace();
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+ return null;
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+ } finally {
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+ if (in != null) {
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+ try {
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+ in.close();
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+ } catch (IOException e) {
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+ e.printStackTrace();
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+ }
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+ }
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+ if (removeFile)
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+ remove(key);
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+ }
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+ }
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+ // =======================================
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+ // ============= JSONObject 数据 读写 ==============
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+ // =======================================
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+
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+ /**
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+ * 保存 JSONObject数据 到 缓存中
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+ *
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+ * @param key 保存的key
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+ * @param value 保存的JSON数据
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+ */
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+ public void put(String key, JSONObject value) {
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+ put(key, value.toString());
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+ }
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+
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+ /**
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+ * 保存 JSONObject数据 到 缓存中
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+ *
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+ * @param key 保存的key
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+ * @param value 保存的JSONObject数据
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+ * @param saveTime 保存的时间,单位:秒
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+ */
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+ public void put(String key, JSONObject value, int saveTime) {
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+ put(key, value.toString(), saveTime);
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+ }
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+
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+ /**
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+ * 读取JSONObject数据
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+ *
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+ * @param key
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+ * @return JSONObject数据
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+ */
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+ public JSONObject getAsJSONObject(String key) {
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+ String JSONString = getAsString(key);
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+ try {
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+ JSONObject obj = new JSONObject(JSONString);
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+ return obj;
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+ } catch (Exception e) {
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+ e.printStackTrace();
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+ return null;
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+ }
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+ }
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+ // =======================================
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+ // ============ JSONArray 数据 读写 =============
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+ // =======================================
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+
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+ /**
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+ * 保存 JSONArray数据 到 缓存中
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+ *
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+ * @param key 保存的key
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+ * @param value 保存的JSONArray数据
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+ */
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+ public void put(String key, JSONArray value) {
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+ put(key, value.toString());
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+ }
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+
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+ /**
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+ * 保存 JSONArray数据 到 缓存中
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+ *
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+ * @param key 保存的key
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+ * @param value 保存的JSONArray数据
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+ * @param saveTime 保存的时间,单位:秒
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+ */
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+ public void put(String key, JSONArray value, int saveTime) {
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+ put(key, value.toString(), saveTime);
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+ }
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+
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+ /**
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+ * 读取JSONArray数据
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+ *
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+ * @param key
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+ * @return JSONArray数据
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+ */
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+ public JSONArray getAsJSONArray(String key) {
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+ String JSONString = getAsString(key);
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+ try {
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+ JSONArray obj = new JSONArray(JSONString);
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+ return obj;
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+ } catch (Exception e) {
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+ e.printStackTrace();
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+ return null;
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+ }
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+ }
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+ // =======================================
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+ // ============== byte 数据 读写 =============
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+ // =======================================
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+
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+ /**
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+ * 保存 byte数据 到 缓存中
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+ *
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+ * @param key 保存的key
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+ * @param value 保存的数据
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+ */
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+ public void put(String key, byte[] value) {
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+ File file = mCache.newFile(key);
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+ FileOutputStream out = null;
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+ try {
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+ out = new FileOutputStream(file);
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+ out.write(value);
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+ } catch (Exception e) {
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+ e.printStackTrace();
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+ } finally {
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+ if (out != null) {
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+ try {
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+ out.flush();
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+ out.close();
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+ } catch (IOException e) {
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+ e.printStackTrace();
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+ }
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+ }
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+ mCache.put(file);
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+ }
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+ }
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+
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+ /**
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+ * 保存 byte数据 到 缓存中
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+ *
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+ * @param key 保存的key
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+ * @param value 保存的数据
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+ * @param saveTime 保存的时间,单位:秒
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+ */
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+ public void put(String key, byte[] value, int saveTime) {
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+ put(key, Utils.newByteArrayWithDateInfo(saveTime, value));
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+ }
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+
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+ /**
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+ * 获取 byte 数据
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+ *
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+ * @param key
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+ * @return byte 数据
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+ */
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+ public byte[] getAsBinary(String key) {
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+ RandomAccessFile RAFile = null;
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+ boolean removeFile = false;
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+ try {
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+ File file = mCache.get(key);
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+ if (!file.exists())
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+ return null;
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+ RAFile = new RandomAccessFile(file, "r");
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+ byte[] byteArray = new byte[(int) RAFile.length()];
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+ RAFile.read(byteArray);
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+ if (!Utils.isDue(byteArray)) {
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+ return Utils.clearDateInfo(byteArray);
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+ } else {
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+ removeFile = true;
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+ return null;
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+ }
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+ } catch (Exception e) {
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+ e.printStackTrace();
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+ return null;
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+ } finally {
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+ if (RAFile != null) {
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+ try {
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+ RAFile.close();
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+ } catch (IOException e) {
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+ e.printStackTrace();
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+ }
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+ }
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+ if (removeFile)
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+ remove(key);
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+ }
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+ }
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+ // =======================================
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+ // ============= 序列化 数据 读写 ===============
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+ // =======================================
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+
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+ /**
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+ * 保存 Serializable数据 到 缓存中
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+ *
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+ * @param key 保存的key
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+ * @param value 保存的value
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+ */
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+ public void put(String key, Serializable value) {
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+ put(key, value, -1);
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+ }
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+
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+ /**
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+ * 保存 Serializable数据到 缓存中
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+ *
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+ * @param key 保存的key
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+ * @param value 保存的value
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+ * @param saveTime 保存的时间,单位:秒
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+ */
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+ public void put(String key, Serializable value, int saveTime) {
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+ ByteArrayOutputStream baos = null;
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+ ObjectOutputStream oos = null;
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+ try {
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+ baos = new ByteArrayOutputStream();
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+ oos = new ObjectOutputStream(baos);
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+ oos.writeObject(value);
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+ byte[] data = baos.toByteArray();
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+ if (saveTime != -1) {
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+ put(key, data, saveTime);
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+ } else {
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+ put(key, data);
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+ }
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+ } catch (Exception e) {
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+ e.printStackTrace();
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+ } finally {
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+ try {
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+ oos.close();
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+ } catch (IOException e) {
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+ }
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+ }
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+ }
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+
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+ /**
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+ * 读取 Serializable数据
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+ *
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+ * @param key
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+ * @return Serializable 数据
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+ */
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+ public Object getAsObject(String key) {
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|
+ byte[] data = getAsBinary(key);
|
|
|
|
+ if (data != null) {
|
|
|
|
+ ByteArrayInputStream bais = null;
|
|
|
|
+ ObjectInputStream ois = null;
|
|
|
|
+ try {
|
|
|
|
+ bais = new ByteArrayInputStream(data);
|
|
|
|
+ ois = new ObjectInputStream(bais);
|
|
|
|
+ Object reObject = ois.readObject();
|
|
|
|
+ return reObject;
|
|
|
|
+ } catch (Exception e) {
|
|
|
|
+ e.printStackTrace();
|
|
|
|
+ return null;
|
|
|
|
+ } finally {
|
|
|
|
+ try {
|
|
|
|
+ if (bais != null)
|
|
|
|
+ bais.close();
|
|
|
|
+ } catch (IOException e) {
|
|
|
|
+ e.printStackTrace();
|
|
|
|
+ }
|
|
|
|
+ try {
|
|
|
|
+ if (ois != null)
|
|
|
|
+ ois.close();
|
|
|
|
+ } catch (IOException e) {
|
|
|
|
+ e.printStackTrace();
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ return null;
|
|
|
|
+ }
|
|
|
|
+ // =======================================
|
|
|
|
+ // ============== bitmap 数据 读写 =============
|
|
|
|
+ // =======================================
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 保存 bitmap 到 缓存中
|
|
|
|
+ *
|
|
|
|
+ * @param key 保存的key
|
|
|
|
+ * @param value 保存的bitmap数据
|
|
|
|
+ */
|
|
|
|
+ public void put(String key, Bitmap value) {
|
|
|
|
+ put(key, Utils.Bitmap2Bytes(value));
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 保存 bitmap 到 缓存中
|
|
|
|
+ *
|
|
|
|
+ * @param key 保存的key
|
|
|
|
+ * @param value 保存的 bitmap 数据
|
|
|
|
+ * @param saveTime 保存的时间,单位:秒
|
|
|
|
+ */
|
|
|
|
+ public void put(String key, Bitmap value, int saveTime) {
|
|
|
|
+ put(key, Utils.Bitmap2Bytes(value), saveTime);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 读取 bitmap 数据
|
|
|
|
+ *
|
|
|
|
+ * @param key
|
|
|
|
+ * @return bitmap 数据
|
|
|
|
+ */
|
|
|
|
+ public Bitmap getAsBitmap(String key) {
|
|
|
|
+ if (getAsBinary(key) == null) {
|
|
|
|
+ return null;
|
|
|
|
+ }
|
|
|
|
+ return Utils.Bytes2Bimap(getAsBinary(key));
|
|
|
|
+ }
|
|
|
|
+ // =======================================
|
|
|
|
+ // ============= drawable 数据 读写 =============
|
|
|
|
+ // =======================================
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 保存 drawable 到 缓存中
|
|
|
|
+ *
|
|
|
|
+ * @param key 保存的key
|
|
|
|
+ * @param value 保存的drawable数据
|
|
|
|
+ */
|
|
|
|
+ public void put(String key, Drawable value) {
|
|
|
|
+ put(key, Utils.drawable2Bitmap(value));
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 保存 drawable 到 缓存中
|
|
|
|
+ *
|
|
|
|
+ * @param key 保存的key
|
|
|
|
+ * @param value 保存的 drawable 数据
|
|
|
|
+ * @param saveTime 保存的时间,单位:秒
|
|
|
|
+ */
|
|
|
|
+ public void put(String key, Drawable value, int saveTime) {
|
|
|
|
+ put(key, Utils.drawable2Bitmap(value), saveTime);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 读取 Drawable 数据
|
|
|
|
+ *
|
|
|
|
+ * @param key
|
|
|
|
+ * @return Drawable 数据
|
|
|
|
+ */
|
|
|
|
+ public Drawable getAsDrawable(String key) {
|
|
|
|
+ if (getAsBinary(key) == null) {
|
|
|
|
+ return null;
|
|
|
|
+ }
|
|
|
|
+ return Utils.bitmap2Drawable(Utils.Bytes2Bimap(getAsBinary(key)));
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 获取缓存文件
|
|
|
|
+ *
|
|
|
|
+ * @param key
|
|
|
|
+ * @return value 缓存的文件
|
|
|
|
+ */
|
|
|
|
+ public File file(String key) {
|
|
|
|
+ File f = mCache.newFile(key);
|
|
|
|
+ if (f.exists())
|
|
|
|
+ return f;
|
|
|
|
+ return null;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 移除某个key
|
|
|
|
+ *
|
|
|
|
+ * @param key
|
|
|
|
+ * @return 是否移除成功
|
|
|
|
+ */
|
|
|
|
+ public boolean remove(String key) {
|
|
|
|
+ return mCache.remove(key);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 清除所有数据
|
|
|
|
+ */
|
|
|
|
+ public void clear() {
|
|
|
|
+ mCache.clear();
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 缓存管理器
|
|
|
|
+ */
|
|
|
|
+ private class ACacheManager {
|
|
|
|
+ private final AtomicLong cacheSize;
|
|
|
|
+ private final AtomicInteger cacheCount;
|
|
|
|
+ private final long sizeLimit;
|
|
|
|
+ private final int countLimit;
|
|
|
|
+ private final Map<File, Long> lastUsageDates = Collections
|
|
|
|
+ .synchronizedMap(new HashMap<File, Long>());
|
|
|
|
+ protected File cacheDir;
|
|
|
|
+
|
|
|
|
+ private ACacheManager(File cacheDir, long sizeLimit, int countLimit) {
|
|
|
|
+ this.cacheDir = cacheDir;
|
|
|
|
+ this.sizeLimit = sizeLimit;
|
|
|
|
+ this.countLimit = countLimit;
|
|
|
|
+ cacheSize = new AtomicLong();
|
|
|
|
+ cacheCount = new AtomicInteger();
|
|
|
|
+ calculateCacheSizeAndCacheCount();
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 计算 cacheSize和cacheCount
|
|
|
|
+ */
|
|
|
|
+ private void calculateCacheSizeAndCacheCount() {
|
|
|
|
+ new Thread(new Runnable() {
|
|
|
|
+ @Override
|
|
|
|
+ public void run() {
|
|
|
|
+ int size = 0;
|
|
|
|
+ int count = 0;
|
|
|
|
+ File[] cachedFiles = cacheDir.listFiles();
|
|
|
|
+ if (cachedFiles != null) {
|
|
|
|
+ for (File cachedFile : cachedFiles) {
|
|
|
|
+ size += calculateSize(cachedFile);
|
|
|
|
+ count += 1;
|
|
|
|
+ lastUsageDates.put(cachedFile,
|
|
|
|
+ cachedFile.lastModified());
|
|
|
|
+ }
|
|
|
|
+ cacheSize.set(size);
|
|
|
|
+ cacheCount.set(count);
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ }).start();
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private void put(File file) {
|
|
|
|
+ int curCacheCount = cacheCount.get();
|
|
|
|
+ while (curCacheCount + 1 > countLimit) {
|
|
|
|
+ long freedSize = removeNext();
|
|
|
|
+ cacheSize.addAndGet(-freedSize);
|
|
|
|
+ curCacheCount = cacheCount.addAndGet(-1);
|
|
|
|
+ }
|
|
|
|
+ cacheCount.addAndGet(1);
|
|
|
|
+ long valueSize = calculateSize(file);
|
|
|
|
+ long curCacheSize = cacheSize.get();
|
|
|
|
+ while (curCacheSize + valueSize > sizeLimit) {
|
|
|
|
+ long freedSize = removeNext();
|
|
|
|
+ curCacheSize = cacheSize.addAndGet(-freedSize);
|
|
|
|
+ }
|
|
|
|
+ cacheSize.addAndGet(valueSize);
|
|
|
|
+ Long currentTime = System.currentTimeMillis();
|
|
|
|
+ file.setLastModified(currentTime);
|
|
|
|
+ lastUsageDates.put(file, currentTime);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private File get(String key) {
|
|
|
|
+ File file = newFile(key);
|
|
|
|
+ Long currentTime = System.currentTimeMillis();
|
|
|
|
+ file.setLastModified(currentTime);
|
|
|
|
+ lastUsageDates.put(file, currentTime);
|
|
|
|
+ return file;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private File newFile(String key) {
|
|
|
|
+ return new File(cacheDir, key.hashCode() + "");
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private boolean remove(String key) {
|
|
|
|
+ File image = get(key);
|
|
|
|
+ return image.delete();
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private void clear() {
|
|
|
|
+ lastUsageDates.clear();
|
|
|
|
+ cacheSize.set(0);
|
|
|
|
+ File[] files = cacheDir.listFiles();
|
|
|
|
+ if (files != null) {
|
|
|
|
+ for (File f : files) {
|
|
|
|
+ f.delete();
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 移除旧的文件
|
|
|
|
+ *
|
|
|
|
+ * @return
|
|
|
|
+ */
|
|
|
|
+ private long removeNext() {
|
|
|
|
+ if (lastUsageDates.isEmpty()) {
|
|
|
|
+ return 0;
|
|
|
|
+ }
|
|
|
|
+ Long oldestUsage = null;
|
|
|
|
+ File mostLongUsedFile = null;
|
|
|
|
+ Set<Map.Entry<File, Long>> entries = lastUsageDates.entrySet();
|
|
|
|
+ synchronized (lastUsageDates) {
|
|
|
|
+ for (Map.Entry<File, Long> entry : entries) {
|
|
|
|
+ if (mostLongUsedFile == null) {
|
|
|
|
+ mostLongUsedFile = entry.getKey();
|
|
|
|
+ oldestUsage = entry.getValue();
|
|
|
|
+ } else {
|
|
|
|
+ Long lastValueUsage = entry.getValue();
|
|
|
|
+ if (lastValueUsage < oldestUsage) {
|
|
|
|
+ oldestUsage = lastValueUsage;
|
|
|
|
+ mostLongUsedFile = entry.getKey();
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ long fileSize = calculateSize(mostLongUsedFile);
|
|
|
|
+ if (mostLongUsedFile.delete()) {
|
|
|
|
+ lastUsageDates.remove(mostLongUsedFile);
|
|
|
|
+ }
|
|
|
|
+ return fileSize;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private long calculateSize(File file) {
|
|
|
|
+ return file.length();
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 时间计算工具类
|
|
|
|
+ * 1.0
|
|
|
|
+ */
|
|
|
|
+ private static class Utils {
|
|
|
|
+ /**
|
|
|
|
+ * 判断缓存的String数据是否到期
|
|
|
|
+ *
|
|
|
|
+ * @param str
|
|
|
|
+ * @return true:到期了 false:还没有到期
|
|
|
|
+ */
|
|
|
|
+ private static boolean isDue(String str) {
|
|
|
|
+ return isDue(str.getBytes());
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 判断缓存的byte数据是否到期
|
|
|
|
+ *
|
|
|
|
+ * @param data
|
|
|
|
+ * @return true:到期了 false:还没有到期
|
|
|
|
+ */
|
|
|
|
+ private static boolean isDue(byte[] data) {
|
|
|
|
+ String[] strs = getDateInfoFromDate(data);
|
|
|
|
+ if (strs != null && strs.length == 2) {
|
|
|
|
+ String saveTimeStr = strs[0];
|
|
|
|
+ while (saveTimeStr.startsWith("0")) {
|
|
|
|
+ saveTimeStr = saveTimeStr
|
|
|
|
+ .substring(1, saveTimeStr.length());
|
|
|
|
+ }
|
|
|
|
+ long saveTime = Long.valueOf(saveTimeStr);
|
|
|
|
+ long deleteAfter = Long.valueOf(strs[1]);
|
|
|
|
+ if (System.currentTimeMillis() > saveTime + deleteAfter * 1000) {
|
|
|
|
+ return true;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ return false;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private static String newStringWithDateInfo(int second, String strInfo) {
|
|
|
|
+ return createDateInfo(second) + strInfo;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private static byte[] newByteArrayWithDateInfo(int second, byte[] data2) {
|
|
|
|
+ byte[] data1 = createDateInfo(second).getBytes();
|
|
|
|
+ byte[] retdata = new byte[data1.length + data2.length];
|
|
|
|
+ System.arraycopy(data1, 0, retdata, 0, data1.length);
|
|
|
|
+ System.arraycopy(data2, 0, retdata, data1.length, data2.length);
|
|
|
|
+ return retdata;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private static String clearDateInfo(String strInfo) {
|
|
|
|
+ if (strInfo != null && hasDateInfo(strInfo.getBytes())) {
|
|
|
|
+ strInfo = strInfo.substring(strInfo.indexOf(mSeparator) + 1,
|
|
|
|
+ strInfo.length());
|
|
|
|
+ }
|
|
|
|
+ return strInfo;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private static byte[] clearDateInfo(byte[] data) {
|
|
|
|
+ if (hasDateInfo(data)) {
|
|
|
|
+ return copyOfRange(data, indexOf(data, mSeparator) + 1,
|
|
|
|
+ data.length);
|
|
|
|
+ }
|
|
|
|
+ return data;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private static boolean hasDateInfo(byte[] data) {
|
|
|
|
+ return data != null && data.length > 15 && data[13] == '-'
|
|
|
|
+ && indexOf(data, mSeparator) > 14;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private static String[] getDateInfoFromDate(byte[] data) {
|
|
|
|
+ if (hasDateInfo(data)) {
|
|
|
|
+ String saveDate = new String(copyOfRange(data, 0, 13));
|
|
|
|
+ String deleteAfter = new String(copyOfRange(data, 14,
|
|
|
|
+ indexOf(data, mSeparator)));
|
|
|
|
+ return new String[]{saveDate, deleteAfter};
|
|
|
|
+ }
|
|
|
|
+ return null;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private static int indexOf(byte[] data, char c) {
|
|
|
|
+ for (int i = 0; i < data.length; i++) {
|
|
|
|
+ if (data[i] == c) {
|
|
|
|
+ return i;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ return -1;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private static byte[] copyOfRange(byte[] original, int from, int to) {
|
|
|
|
+ int newLength = to - from;
|
|
|
|
+ if (newLength < 0)
|
|
|
|
+ throw new IllegalArgumentException(from + " > " + to);
|
|
|
|
+ byte[] copy = new byte[newLength];
|
|
|
|
+ System.arraycopy(original, from, copy, 0,
|
|
|
|
+ Math.min(original.length - from, newLength));
|
|
|
|
+ return copy;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private static final char mSeparator = ' ';
|
|
|
|
+
|
|
|
|
+ private static String createDateInfo(int second) {
|
|
|
|
+ String currentTime = System.currentTimeMillis() + "";
|
|
|
|
+ while (currentTime.length() < 13) {
|
|
|
|
+ currentTime = "0" + currentTime;
|
|
|
|
+ }
|
|
|
|
+ return currentTime + "-" + second + mSeparator;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /*
|
|
|
|
+ * Bitmap → byte[]
|
|
|
|
+ */
|
|
|
|
+ private static byte[] Bitmap2Bytes(Bitmap bm) {
|
|
|
|
+ if (bm == null) {
|
|
|
|
+ return null;
|
|
|
|
+ }
|
|
|
|
+ ByteArrayOutputStream baos = new ByteArrayOutputStream();
|
|
|
|
+ bm.compress(Bitmap.CompressFormat.PNG, 100, baos);
|
|
|
|
+ return baos.toByteArray();
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /*
|
|
|
|
+ * byte[] → Bitmap
|
|
|
|
+ */
|
|
|
|
+ private static Bitmap Bytes2Bimap(byte[] b) {
|
|
|
|
+ if (b.length == 0) {
|
|
|
|
+ return null;
|
|
|
|
+ }
|
|
|
|
+ return BitmapFactory.decodeByteArray(b, 0, b.length);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /*
|
|
|
|
+ * Drawable → Bitmap
|
|
|
|
+ */
|
|
|
|
+ private static Bitmap drawable2Bitmap(Drawable drawable) {
|
|
|
|
+ if (drawable == null) {
|
|
|
|
+ return null;
|
|
|
|
+ }
|
|
|
|
+ // 取 drawable 的长宽
|
|
|
|
+ int w = drawable.getIntrinsicWidth();
|
|
|
|
+ int h = drawable.getIntrinsicHeight();
|
|
|
|
+ // 取 drawable 的颜色格式
|
|
|
|
+ Bitmap.Config config = drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888
|
|
|
|
+ : Bitmap.Config.RGB_565;
|
|
|
|
+ // 建立对应 bitmap
|
|
|
|
+ Bitmap bitmap = Bitmap.createBitmap(w, h, config);
|
|
|
|
+ // 建立对应 bitmap 的画布
|
|
|
|
+ Canvas canvas = new Canvas(bitmap);
|
|
|
|
+ drawable.setBounds(0, 0, w, h);
|
|
|
|
+ // 把 drawable 内容画到画布中
|
|
|
|
+ drawable.draw(canvas);
|
|
|
|
+ return bitmap;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /*
|
|
|
|
+ * Bitmap → Drawable
|
|
|
|
+ */
|
|
|
|
+ @SuppressWarnings("deprecation")
|
|
|
|
+ private static Drawable bitmap2Drawable(Bitmap bm) {
|
|
|
|
+ if (bm == null) {
|
|
|
|
+ return null;
|
|
|
|
+ }
|
|
|
|
+ return new BitmapDrawable(bm);
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+}
|