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我有 2 个活动 Activity A = GameActivity 使用 PhotoTask.class 的一个实例，它扩展了 AsyncTask 并用于拍摄和保存图片。图片保存后，我启动 Activity B = ShareActivity。

当我拍照并且不改变方向时，会调用 Activity B 并且一切正常。然而，如果我改变屏幕的方向来拍照（我从纵向传递到横向），我无法启动 Activity B 并且我有错误。

02-01 16:09:36.571: E/AndroidRuntime(13362): FATAL EXCEPTION: main
02-01 16:09:36.571: E/AndroidRuntime(13362): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.kersplatt/com.example.kersplatt.ShareActivity}: android.view.InflateException: Binary XML file line #29: Error inflating class <unknown>
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.app.ActivityThread.access$1500(ActivityThread.java:117)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.os.Handler.dispatchMessage(Handler.java:99)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.os.Looper.loop(Looper.java:130)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.app.ActivityThread.main(ActivityThread.java:3683)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at java.lang.reflect.Method.invokeNative(Native Method)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at java.lang.reflect.Method.invoke(Method.java:507)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:875)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:633)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at dalvik.system.NativeStart.main(Native Method)
02-01 16:09:36.571: E/AndroidRuntime(13362): Caused by: android.view.InflateException: Binary XML file line #29: Error inflating class <unknown>
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.view.LayoutInflater.createView(LayoutInflater.java:518)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:568)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:623)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:626)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.view.LayoutInflater.inflate(LayoutInflater.java:408)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:209)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.app.Activity.setContentView(Activity.java:1657)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at com.example.kersplatt.ShareActivity.onCreate(ShareActivity.java:64)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
02-01 16:09:36.571: E/AndroidRuntime(13362):    ... 11 more
02-01 16:09:36.571: E/AndroidRuntime(13362): Caused by: java.lang.reflect.InvocationTargetException
02-01 16:09:36.571: E/AndroidRuntime(13362):    at java.lang.reflect.Constructor.constructNative(Native Method)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at java.lang.reflect.Constructor.newInstance(Constructor.java:415)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.view.LayoutInflater.createView(LayoutInflater.java:505)
02-01 16:09:36.571: E/AndroidRuntime(13362):    ... 23 more
02-01 16:09:36.571: E/AndroidRuntime(13362): Caused by: java.lang.OutOfMemoryError: bitmap size exceeds VM budget
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:460)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:336)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:697)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.content.res.Resources.loadDrawable(Resources.java:1709)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.content.res.TypedArray.getDrawable(TypedArray.java:601)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.widget.ImageView.<init>(ImageView.java:118)
02-01 16:09:36.571: E/AndroidRuntime(13362):    at android.widget.ImageView.<init>(ImageView.java:108)
02-01 16:09:36.571: E/AndroidRuntime(13362):    ... 26 more

我什至在我的代码中用位图图像进行了评论，但仍然有位图错误！

我在清单中添加了 configChanges:orientation，回收了我的 bnitmaps，使用了活动的 WeakReference 而不是活动本身作为 PhotoTask 中的变量，尝试使用 Eclipse 内存分析器查看内存泄漏（Android：使用 Eclipse 内存分析器检测泄漏）但不明白为什么我有这些错误

我真的搜索了很多，我变得非常绝望，所以如果你能帮助我，那就太好了

供您参考，我的代码片段

public class ShareActivity extends Activity implements OnClickListener{
    public static final String APP_ID = "477110419013909";
    Facebook facebook = new Facebook(APP_ID);
    AsyncFacebookRunner mAsyncRunner = new AsyncFacebookRunner(facebook);
    String FILENAME = "AndroidSSO_data";
    SharedPreferences mPrefs;
    Handler mHandler;
    File file;
    byte[] bytes;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        Log.w("SHAREACTIVITY","SECOND");
        super.onCreate(savedInstanceState);
        setContentView(R.layout.share);
        file = (File) this.getIntent().getExtras().get("PICTURE_TAKEN");
        Bitmap bitmap = BitmapFactory.decodeFile(file.getAbsolutePath());
        Bitmap mutableBitmap = bitmap.copy(Bitmap.Config.ARGB_8888, true);
        ImageView image5 = (ImageView) findViewById(R.id.imageView5);
        image5.setImageBitmap(mutableBitmap);
        bitmap.recycle();
        mutableBitmap.recycle();

    }

课堂摄影

public class PhotoTask extends AsyncTask<Boolean, Void, Void> {
    private Camera camera;
    private SurfaceView surfaceCamera;
    private boolean isPreview=false;
    private SurfaceHolder holder;
    private WeakReference<GameActivity> weakgameactivity;
    GameActivity gameactivity;
    private File output;

    public PhotoTask(Camera camera, SurfaceView surfaceCamera,boolean isPreview, SurfaceHolder holder, GameActivity gameactivity) {
        super();
        this.camera = camera;
        this.surfaceCamera = surfaceCamera;
        this.isPreview = isPreview;
        this.holder = holder;
        this.weakgameactivity = new WeakReference<GameActivity>(gameactivity);
        this.gameactivity=this.weakgameactivity.get();
    }


    PictureCallback myPictureCallback_JPG = new PictureCallback(){

        @Override
        public void onPictureTaken(byte[] data, Camera camera) {
            Log.w("GAMEACTIVITY","FIRST");
//          ImageView image5 = (ImageView) gameactivity.findViewById(R.id.imageView6);
            File imagesFolder = new File(Environment.getExternalStorageDirectory(), "/KersplattFolder");

            imagesFolder.mkdirs(); 
            SimpleDateFormat dateFormat = new SimpleDateFormat("yyyymmddhhmmss");
            String date = dateFormat.format(new Date());
            String fileName = "Kersplatt_" + date + ".jpg";
            output = new File(imagesFolder, fileName);
            ImageView view = (ImageView) gameactivity.findViewById(R.id.imageView6);
            view.setDrawingCacheEnabled(true);
            Bitmap b = view.getDrawingCache();
            FileOutputStream fos = null;
            try {
                fos = new FileOutputStream(output);
            } catch (FileNotFoundException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }
            b.compress(CompressFormat.JPEG, 95, fos);
            try {
            fos.write(data);
            fos.close();
            } catch (FileNotFoundException e) {
                    e.printStackTrace();
            }
              catch (IOException e) {
                    e.printStackTrace();
            }
              camera.stopPreview();
              Log.w("GAMEACTIVITY","INTENT");
              b.recycle();
              Intent intent = new Intent(gameactivity.getApplicationContext(),ShareActivity.class);
              // Sending the picture taken to ShareActivity
              intent.putExtra("PICTURE_TAKEN", output);
              gameactivity.startActivity(intent);
        }

    };

    @Override
    protected Void doInBackground(Boolean... params) {
         camera.takePicture(null,null, myPictureCallback_JPG);
            Log.w("GAMEACTIVITY","TAKEPICTURE");
            return null;
    }


}
4

1 回答 1

0

有两件事可能发生。

由于您说问题仅在更改方向时发生，这表明您的活动正在记忆中。某些引用（静态的，或者与您的活动生命周期不同步的）可能会阻止 GC 在新的用于更改方向的实例膨胀之前清理旧实例。

其次，您试图将整张照片打入 ImageView。这是一个坏主意，因为照片可能很大并且会消耗大量内存。它甚至可能导致没有上述问题的OOME。考虑以较小的样本大小解码位图，如本例所示。

于 2013-02-02T00:06:49.080 回答