集成热更

app/src/main/java/com/gh/common/util/DexUtils.java

@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2015 Baidu, Inc. All Rights Reserved.
+ */
+package com.gh.common.util;
+
+import android.content.Context;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+
+/**
+ * Created by sunpengfei on 15/11/4.
+ */
+public class DexUtils {
+    private static final int BUF_SIZE = 2048;
+
+    public static boolean prepareDex(Context context, File dexInternalStoragePath, String dex_file) {
+        BufferedInputStream bis = null;
+        OutputStream dexWriter = null;
+
+        try {
+            bis = new BufferedInputStream(context.getAssets().open(dex_file));
+            dexWriter = new BufferedOutputStream(new FileOutputStream(dexInternalStoragePath));
+            byte[] buf = new byte[BUF_SIZE];
+            int len;
+            while ((len = bis.read(buf, 0, BUF_SIZE)) > 0) {
+                dexWriter.write(buf, 0, len);
+            }
+            dexWriter.close();
+            bis.close();
+            return true;
+        } catch (IOException e) {
+            if (dexWriter != null) {
+                try {
+                    dexWriter.close();
+                } catch (IOException ioe) {
+                    ioe.printStackTrace();
+                }
+            }
+            if (bis != null) {
+                try {
+                    bis.close();
+                } catch (IOException ioe) {
+                    ioe.printStackTrace();
+                }
+            }
+            return false;
+        }
+    }
+}