Android显示图像位图错误答案

【问题标题】：Android showing image Bitmap ErrorAndroid显示图像位图错误
【发布时间】：2011-07-04 09:11:59
【问题描述】：

您好，我正在尝试从 SD 卡中的所有文件夹中读取图像。所以它创建文件夹列表，如下载、相机等。现在，当我按下任何文件夹时，它会在网格视图中打开照片。我的下载文件夹有小尺寸的图像，应用程序工作正常，但是当我打开具有更大尺寸图像的相机文件夹时，我的应用程序崩溃了。我的grid vie的get view函数如下。

 public View getView(int position, View convertView, ViewGroup parent) {
        ImageView i = new ImageView(mContext);  
        View v = convertView;
        if (v == null) {
            LayoutInflater vi = (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            v = vi.inflate(R.layout.localimageview, null);
        }

        BitmapFactory.Options options=new Options();
        options.inSampleSize=2;
        options.inTempStorage = new byte[16*1024];

        Bitmap bb=BitmapFactory.decodeFile(FileList.get(position).toString(),options);
        i.setImageBitmap(bb);

        i.setLayoutParams(new GridView.LayoutParams(75,75));  
        i.setScaleType(ImageView.ScaleType.CENTER_CROP);
        i.setPadding(8, 8, 8, 8);
        v = (View)i;
        return v;  
    }
}

}

它崩溃了
位图 bb=BitmapFactory.decodeFile(FileList.get(position).toString(),options);

    07-04 14:21:17.211: ERROR/AndroidRuntime(11509): FATAL EXCEPTION: main
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509): java.lang.OutOfMemoryError: bitmap size exceeds VM budget
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.graphics.BitmapFactory.nativeDecodeStream(Native Method)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:459)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:271)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at com.ibm.imagegallery.ImageActivity$ImageAdapter.getView(ImageActivity.java:107)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.widget.AbsListView.obtainView(AbsListView.java:1294)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.widget.GridView.makeAndAddView(GridView.java:1219)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.widget.GridView.makeRow(GridView.java:265)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.widget.GridView.fillDown(GridView.java:218)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.widget.GridView.fillFromTop(GridView.java:337)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.widget.GridView.layoutChildren(GridView.java:1111)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.widget.AbsListView.onLayout(AbsListView.java:1147)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.view.View.layout(View.java:7035)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.widget.FrameLayout.onLayout(FrameLayout.java:333)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.view.View.layout(View.java:7035)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1249)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1125)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.widget.LinearLayout.onLayout(LinearLayout.java:1042)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.view.View.layout(View.java:7035)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.widget.FrameLayout.onLayout(FrameLayout.java:333)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.view.View.layout(View.java:7035)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.view.ViewRoot.performTraversals(ViewRoot.java:1045)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.view.ViewRoot.handleMessage(ViewRoot.java:1727)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.os.Handler.dispatchMessage(Handler.java:99)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.os.Looper.loop(Looper.java:123)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at android.app.ActivityThread.main(ActivityThread.java:4627)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at java.lang.reflect.Method.invokeNative(Native Method)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at java.lang.reflect.Method.invoke(Method.java:521)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
    07-04 14:21:17.211: ERROR/AndroidRuntime(11509):     at dalvik.system.NativeStart.main(Native Method)
    07-04 14:21:17.221: WARN/ActivityManager(1378):   Force finishing activity com.ibm.imagegallery/.ImageActivity
    07-04 14:21:17.231: WARN/ActivityManager(1378):   Force finishing activity com.ibm.imagegallery/.ImageGallery

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标签： android bitmap

【解决方案1】：

检查例如this question。或者搜索一下，这个是以前回答过的常见问题。

【讨论】：

【解决方案2】：

当您访问相机图片时，一旦加载太大而无法处理应用程序，您需要做的是您需要降级图像并将其用于您的活动可以从这里解决这个问题 Strange out of memory issue while loading an image to a Bitmap object

【讨论】：

【解决方案3】：

试试下面的代码。希望有帮助

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            View row = convertView;
            ViewWrapper wrapper = null;

            try {
                if (row == null) {
                    LayoutInflater inflater = getLayoutInflater();
                    row = inflater.inflate(R.layout.gallery_template, parent,
                            false);
                    wrapper = new ViewWrapper(row);
                    row.setTag(wrapper);
                } else {
                    wrapper = (ViewWrapper) row.getTag();
                }

                Bitmap bitmap = getImage(position);

                if (bitmap != null ) {

                    wrapper.getIcon().setImageBitmap(bitmap);
                } else {
                                  showErrorDialogue(getString(R.string.noGalleryData));
                }
            } catch (Exception e) {}
            return (row);
        }

private Bitmap getImage(int position) {
        Bitmap bitmap = null;
        if (Constants.IMAGES_PATH.size() > 0) {

            try {
  BitmapFactory.Options options = new BitmapFactory.Options();
  options.inSampleSize = 4;


                String path = Constants.IMAGES_PATH.get(position);
                // -------- Decode THE BITMAP AND RESIZE IT
                bitmap = BitmapFactory
                    .decodeFile(path,options));
            } catch (Exception e) {}
        }
        return bitmap;
    }

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