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我正在尝试使用我自己的CWAC Camera自定义实现。我试图在我自己的 SimpleCameraHost 扩展上覆盖 saveImage 函数。这是我的代码：

欢迎您覆盖 saveImage(byte[]) 并使用 byte[] 执行其他操作，例如通过 Internet 发送它。saveImage(byte[]) 在后台线程上调用，因此您不必自己进行异步工作。

@Override
public void saveImage(byte[] byteArray) {
    Intent myIntent = new Intent();
    retData.putExtra("data", byteArray);
    getActivity().setResult(Activity.RESULT_OK, myIntent);
    getActivity().finish();
}

我正在三星 Galaxy S3 上进行测试，它运行良好，但是当我尝试使用前置摄像头时，我的应用程序冻结并崩溃。我没有对ActivityResult 做任何事情，所以它源自CameraFragment。不知道可能出了什么问题，因为文档说它已经用 S3 进行了测试。

编辑＃2：

@Override
public Size getPictureSize(Parameters parameters) {

        //return CameraUtils.getLargestPictureSize(parameters);
        // TODO Auto-generated method stub
        List<Camera.Size> list = parameters.getSupportedPictureSizes();
        int targetWidth = 1280;
        int width;
        Camera.Size optimalSize= null;
        for (Camera.Size size : list) {
            width = size.width;
            if (width==targetWidth) {
                optimalSize = size;
                return optimalSize;
            } else if (width<targetWidth){
                optimalSize = size;
                return optimalSize;
            } else if (width>targetWidth) {
                optimalSize = size;
            }
        }

        return optimalSize;

}

好的，所以我的代码绝对适用于将其传递给后置摄像头。当我尝试前置摄像头时，我仍然会崩溃。如果这是一个活页夹错误，我不会得到!!! FAILED BINDER TRANSACTION !!!

堆栈跟踪：

08-12 17:36:40.559: E/YYYY(1295): Height: 960 Width: 1280
08-12 17:36:40.969: D/DeviceProfile(1295): m0xx
08-12 17:36:40.969: I/CWAC-Camera(1295): begin rotateForRealz()
08-12 17:36:40.994: D/dalvikvm(1295): GC_FOR_ALLOC freed 1937K, 8% free 40478K/43911K, paused 26ms, total 26ms
08-12 17:36:40.994: D/AbsListView(1295): [unregisterDoubleTapMotionListener]
08-12 17:36:41.004: I/dalvikvm-heap(1295): Grow heap (frag case) to 44.943MB for 4915216-byte allocation
08-12 17:36:41.039: D/dalvikvm(1295): GC_FOR_ALLOC freed 5K, 8% free 45273K/48775K, paused 34ms, total 34ms
08-12 17:36:41.059: I/MotionRecognitionManager(1295):   .unregisterListener : / listener count = 0->0, listener=android.widget.AbsListView$4@436bd2e8
08-12 17:36:41.074: D/dalvikvm(1295): GC_CONCURRENT freed 21K, 8% free 45253K/48775K, paused 12ms+3ms, total 35ms
08-12 17:36:41.104: D/dalvikvm(1295): WAIT_FOR_CONCURRENT_GC blocked 0ms
08-12 17:36:41.129: D/dalvikvm(1295): GC_EXPLICIT freed <1K, 8% free 45252K/48775K, paused 2ms+3ms, total 26ms
08-12 17:36:41.149: D/dalvikvm(1295): GC_FOR_ALLOC freed 1K, 8% free 45256K/48775K, paused 15ms, total 15ms
08-12 17:36:41.154: I/dalvikvm-heap(1295): Grow heap (frag case) to 49.608MB for 4915216-byte allocation
08-12 17:36:41.184: D/dalvikvm(1295): GC_CONCURRENT freed 277K, 8% free 49778K/53639K, paused 11ms+4ms, total 29ms
08-12 17:36:41.184: D/dalvikvm(1295): WAIT_FOR_CONCURRENT_GC blocked 17ms
08-12 17:36:41.329: I/CWAC-Camera(1295): end rotateForRealz()
08-12 17:36:41.529: D/dalvikvm(1295): WAIT_FOR_CONCURRENT_GC blocked 0ms
08-12 17:36:41.559: D/dalvikvm(1295): GC_EXPLICIT freed 10806K, 24% free 40787K/53639K, paused 2ms+4ms, total 29ms
08-12 17:36:41.584: D/CameraView(1295): stopping preview
08-12 17:36:41.719: D/CameraView(1295): releasing camera
08-12 17:36:41.864: D/dalvikvm(3251): WAIT_FOR_CONCURRENT_GC blocked 0ms
08-12 17:36:41.899: D/dalvikvm(3268): WAIT_FOR_CONCURRENT_GC blocked 0ms
08-12 17:36:41.939: D/dalvikvm(3268): Trying to load lib /data/data/com.myapp.sample/lib/myappScore.so 0x429c6cf8
08-12 17:36:41.939: D/dalvikvm(3268): Added shared lib /data/data/com.myapp.sample/lib/myappScore.so 0x429c6cf8
08-12 17:36:41.939: D/dalvikvm(3268): No JNI_OnLoad found in /data/data/com.myapp.sample/lib/myappScore.so 0x429c6cf8, skipping init
08-12 17:36:41.969: I/ActionBarSherlock(3268): Registering ActionBarSherlockCompat with qualifier @com.actionbarsherlock.ActionBarSherlock$Implementation(api=7, dpi=-1)
08-12 17:36:41.969: I/ActionBarSherlock(3268): Registering ActionBarSherlockNative with qualifier @com.actionbarsherlock.ActionBarSherlock$Implementation(api=14, dpi=-1)
08-12 17:36:41.969: I/ActionBarSherlock(3268): Using implementation: ActionBarSherlockNative
08-12 17:36:41.969: D/ActionBarSherlock(3268): [<ctor>] activity: com.myapp.gui.details.ConvoDetailActivity@42a161a8, flags: 1
08-12 17:36:41.984: D/ActionBarSherlock(3268): [setContentView] layoutResId: 2130903062
08-12 17:36:42.004: D/dalvikvm(3268): GC_CONCURRENT freed 191K, 8% free 12330K/13319K, paused 13ms+12ms, total 36ms
08-12 17:36:42.019: D/dalvikvm(3268): GC_FOR_ALLOC freed 2K, 8% free 12330K/13319K, paused 10ms, total 10ms
08-12 17:36:42.019: I/dalvikvm-heap(3268): Grow heap (frag case) to 13.102MB for 353328-byte allocation
08-12 17:36:42.029: D/dalvikvm(3268): GC_FOR_ALLOC freed <1K, 8% free 12675K/13703K, paused 8ms, total 8ms
08-12 17:36:42.064: D/dalvikvm(3268): GC_FOR_ALLOC freed 5K, 8% free 12703K/13703K, paused 11ms, total 11ms
08-12 17:36:42.064: I/dalvikvm-heap(3268): Grow heap (frag case) to 15.473MB for 2457616-byte allocation
08-12 17:36:42.089: D/dalvikvm(3268): GC_CONCURRENT freed <1K, 7% free 15102K/16135K, paused 11ms+2ms, total 23ms
08-12 17:36:42.114: D/dalvikvm(3268): GC_FOR_ALLOC freed 0K, 7% free 15102K/16135K, paused 11ms, total 11ms
08-12 17:36:42.129: I/dalvikvm-heap(3268): Grow heap (frag case) to 24.847MB for 9830416-byte allocation
08-12 17:36:42.154: D/dalvikvm(3268): GC_CONCURRENT freed 0K, 5% free 24702K/25799K, paused 12ms+2ms, total 25ms
08-12 17:36:42.184: D/dalvikvm(3268): GC_FOR_ALLOC freed 2400K, 14% free 22725K/26247K, paused 12ms, total 12ms
08-12 17:36:42.234: D/dalvikvm(3268): GC_CONCURRENT freed 452K, 8% free 24310K/26247K, paused 3ms+12ms, total 26ms
08-12 17:36:42.234: D/AbsListView(3268): Get MotionRecognitionManager
08-12 17:36:42.244: D/AndroidRuntime(3268): Shutting down VM
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1 回答 1

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我正在三星 Galaxy S3 上进行测试，它运行良好，但是当我尝试使用前置摄像头时，我的应用程序冻结并崩溃。

将来，使用 LogCat 检查崩溃时的 Java 堆栈跟踪。

在这种情况下，我的猜测是，这是因为您试图Intent额外传递一个多 MB 的图像文件，这是行不通的。要么在你获取它的同一个活动中使用图像，要么使用其他方式传递它（例如，通过静态数据成员仔细切换）。

不知道可能出了什么问题，因为文档说它已经用 S3 进行了测试。

如果您对此表示怀疑，请尝试不要覆盖saveImage()，看看会发生什么。

于 2013-08-12T21:12:28.823 回答