Android显示图像位图错误

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【中文标题】Android显示图像位图错误【英文标题】:Android showing image Bitmap Error 【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

【问题讨论】:

此外,如果您发现问题的答案很有用,您应该接受它们的答案(请参阅那里有一个勾号)并使用upvotes。它将帮助您获得更多问题的答案 【参考方案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】:

【参考方案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】:

【参考方案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;
    

【讨论】:

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