拍摄照片并使用图像 - 内存不足错误

好的，我正在开发一款android应用程序，它使用相机拍摄照片，然后在ImageView中使用该图像。我遇到的问题是当我尝试加载图像时，我一直收到java.lang.OutOfMemoryError异常。拍摄照片并使用图像 - 内存不足错误

代码启动相机意图：

button.setOnClickListener(new OnClickListener() { 
    @Override 
    public void onClick(View arg0) { 
     AlertDialog.Builder builder = new AlertDialog.Builder(AddVehicleActivity.this); 
     builder.setTitle("Select A Method"); 
     builder.setItems(R.array.array_PhotoMethods, new DialogInterface.OnClickListener() { 
      @Override 
      public void onClick(DialogInterface dialog, int which) { 
       switch(which) { 
       case 0 : 
        IMAGE_LOCATION = Utility.setFileName(_session); //Returns image path 
        Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); 
        cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(IMAGE_LOCATION))); 
        startActivityForResult(cameraIntent, CAMERA_PIC_REQUEST); 
        break; 
       } 
      } 
     }); 
     builder.show(); 
    } 
});

从我的理解，这将使图像在相机，我可以通过画廊中的图像细节确认的全分辨率保存。使用我的三星SIII，我的图像大约是3.3MB。因此，我可以使用相机并将使用相机拍摄的图像存储到我指定的路径中。尝试使用图像时出现问题。

要加载图像，我用的是以下几点：

public static Bitmap Shrink(String file, int width, int height) { 
    BitmapFactory.Options bmpFactoryOptions = new BitmapFactory.Options(); 
    int heightRatio = (int)Math.ceil(bmpFactoryOptions.outHeight/(float)height); 
    int widthRatio = (int)Math.ceil(bmpFactoryOptions.outWidth/(float)width); 
    if (heightRatio > 1 || widthRatio > 1) { 
     bmpFactoryOptions.inSampleSize = (heightRatio > widthRatio) ? heightRatio : widthRatio; 
    } 
    return BitmapFactory.decodeFile(file, bmpFactoryOptions); 
}

我已经重写了该功能的几种不同的方式，结果发现，有时候，我打电话BitmapFactory.decodeFile

我的筹码时，你得到的内存错误跟踪看起来是这样的：

E/dalvikvm-heap(8355): Out of memory on a 31961104-byte allocation. 
java.lang.OutOfMemoryError 
    at android.graphics.BitmapFactory.nativeDecodeStream(Native Method) 
    at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:619) 
    at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:385) 
    at com.autopilot.com.objects.Images.Shrink(Images.java:191) 
    at com.autopilot.com.adapters.ImageAdapter.getView(ImageAdapter.java:90) 
    at android.widget.AbsListView.obtainView(AbsListView.java:2437) 
    at android.widget.GridView.onMeasure(GridView.java:1030) 
    at android.view.View.measure(View.java:15395) 
    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4826) 
    at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1396) 
    at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1038) 
    at android.widget.LinearLayout.onMeasure(LinearLayout.java:576) 
    at android.view.View.measure(View.java:15395) 
    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4826) 
    at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1396) 
    at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1038) 
    at android.widget.LinearLayout.onMeasure(LinearLayout.java:576) 
    at android.view.View.measure(View.java:15395) 
    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4826) 
    at android.widget.LinearLayout.forceUniformWidth(LinearLayout.java:926) 
    at android.widget.LinearLayout.measureVertical(LinearLayout.java:906) 
    at android.widget.LinearLayout.onMeasure(LinearLayout.java:574) 
    at android.view.View.measure(View.java:15395) 
    at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:617) 
    at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:399) 
    at android.view.View.measure(View.java:15395) 
    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4826) 
    at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) 
    at android.view.View.measure(View.java:15395) 
    at android.widget.LinearLayout.measureVertical(LinearLayout.java:833) 
    at android.widget.LinearLayout.onMeasure(LinearLayout.java:574) 
    at android.view.View.measure(View.java:15395) 
    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4826) 
    at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) 
    at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2362) 
    at android.view.View.measure(View.java:15395) 
    at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1985) 
    at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1226) 
    at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1399) 
    at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1119) 
    at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4553) 
    at android.view.Choreographer$CallbackRecord.run(Choreographer.java:725) 
    at android.view.Choreographer.doCallbacks(Choreographer.java:555) 
    at android.view.Choreographer.doFrame(Choreographer.java:525) 
    at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:711) 
    at android.os.Handler.handleCallback(Handler.java:615) 
    at android.os.Handler.dispatchMessage(Handler.java:92) 
    at android.os.Looper.loop(Looper.java:137) 
    at android.app.ActivityThread.main(ActivityThread.java:4950) 
    at java.lang.reflect.Method.invokeNative(Native Method) 
    at java.lang.reflect.Method.invoke(Method.java:511) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1004) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:771) 
    at dalvik.system.NativeStart.main(Native Method)

通过跟踪这一点，内存异常发生在原始位图加载的任何时候。我无法找到设置保存的图像大小的方法，并且当我尝试从意图附加组件保存位图时，它的大小通常不够大，通常略小于指甲大小。

任何帮助将不胜感激！

来源

2013-08-27 Onceler

您是否试图通过BufferedInputStream加载图像？ – JavaDM

请参阅此链接http://stackoverflow.com/questions/18376147/out-of-memory-exception-while-scroll-listview/18376341#18376341 –

http://developer.android.com/training/displaying-bitmaps/ load-bitmap.html – Selvin

好的，我找到了答案，谢谢sunil！

public static Bitmap Shrink(String file, int width, int height) { 
    final BitmapFactory.Options options = new BitmapFactory.Options(); 
    options.inJustDecodeBounds = true; 
    BitmapFactory.decodeFile(file, options); 
    options.inSampleSize = calcSize(options, width, height); 
    options.inJustDecodeBounds = false; 
    Bitmap bmp = BitmapFactory.decodeFile(file, options); 
    return bmp; 
} 

public static int calcSize(BitmapFactory.Options options, int width, int height) { 
    final int uHeight = options.outHeight; 
    final int uWidth = options.outWidth; 
    int inSampleSize = 1; 
    if (uHeight > height || uWidth > width) { 
     if (uWidth > uHeight) { 
      inSampleSize = Math.round((float) uHeight/(float) height); 
     } else { 
      inSampleSize = Math.round((float) uWidth/(float) width); 
     } 
    } 
    return inSampleSize; 
}

来源

2013-08-27 13:05:20 Onceler

拍摄照片并使用图像 - 内存不足错误

回答

相关问题