WebView顯示h5圖片并點擊放大過多后的內存泄漏問題

    最近在項目開發中用webview去顯示加載h6內容，而h6內容中有一些圖片，并且可以點擊放大看圖。在比較變態的測試方法（點擊圖片放大，關閉當前界面，再進入，再點擊圖片放大，大概10次左右）后，會導致圖片點擊沒反映了（其實就是webview內存泄漏了）。錯誤信息如下：

12-02 10:46:19.824: E/Surface(19632): dequeueBuffer failed (Invalid argument)

12-02 10:46:19.824: E/ViewRootImpl(19632): Could not lock surface

12-02 10:46:19.824: E/ViewRootImpl(19632): java.lang.IllegalArgumentException

12-02 10:46:19.824: E/ViewRootImpl(19632): at android.view.Surface.nativeLockCanvas(Native Method)

12-02 10:46:19.824: E/ViewRootImpl(19632): at android.view.Surface.lockCanvas(Surface.java:244)

12-02 10:46:19.824: E/ViewRootImpl(19632): at android.view.ViewRootImpl.drawSoftware(ViewRootImpl.java:2474)

12-02 10:46:19.824: E/ViewRootImpl(19632): at android.view.ViewRootImpl.draw(ViewRootImpl.java:2448)

12-02 10:46:19.824: E/ViewRootImpl(19632): at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2292)

12-02 10:46:19.824: E/ViewRootImpl(19632): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1922)

12-02 10:46:19.824: E/ViewRootImpl(19632): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1039)

12-02 10:46:19.824: E/ViewRootImpl(19632): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5648)

12-02 10:46:19.824: E/ViewRootImpl(19632): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)

12-02 10:46:19.824: E/ViewRootImpl(19632): at android.view.Choreographer.doCallbacks(Choreographer.java:574)

12-02 10:46:19.824: E/ViewRootImpl(19632): at android.view.Choreographer.doFrame(Choreographer.java:544)

12-02 10:46:19.824: E/ViewRootImpl(19632): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)

12-02 10:46:19.824: E/ViewRootImpl(19632): at android.os.Handler.handleCallback(Handler.java:733)

12-02 10:46:19.824: E/ViewRootImpl(19632): at android.os.Handler.dispatchMessage(Handler.java:95)

12-02 10:46:19.824: E/ViewRootImpl(19632): at android.os.Looper.loop(Looper.java:136)

12-02 10:46:19.824: E/ViewRootImpl(19632): at android.app.ActivityThread.main(ActivityThread.java:5047)

12-02 10:46:19.824: E/ViewRootImpl(19632): at java.lang.reflect.Method.invokeNative(Native Method)

12-02 10:46:19.824: E/ViewRootImpl(19632): at java.lang.reflect.Method.invoke(Method.java:515)

12-02 10:46:19.824: E/ViewRootImpl(19632): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)

12-02 10:46:19.824: E/ViewRootImpl(19632): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:609)

12-02 10:46:19.824: E/ViewRootImpl(19632): at dalvik.system.NativeStart.main(Native Method)

12-02 10:46:19.834: E/JavaBinder(19632): !!! FAILED BINDER TRANSACTION !!!

話不多說了，直接分享一下解決方法吧！

1、在初始化時，customWebView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);

2、在Activity的onDestroy時，添加下面兩句話：

    customWebView.removeAllViews();

    customWebView.destroy();