動画サムネイル

Question

私は私が私を与えるdebug.anfことができるようにはいビデオサムネイルを挿入する方法ならばアナログ機は？ビデオのサムネイルを持つことができないかどうかを知りたい

private void initVideosId() { 
     try 
     { 
      //Here we set up a string array of the thumbnail ID column we want to get back 
      String [] proj={_ID}; 
      // Now we create the cursor pointing to the external thumbnail store 
      _cursor = managedQuery(_contentUri, 
        proj, // Which columns to return 
        null,  // WHERE clause; which rows to return (all rows) 
        null,  // WHERE clause selection arguments (none) 
        null); // Order-by clause (ascending by name) 
      int count= _cursor.getCount(); 
      if(count==0) 
       showToast("meiyou"); 
      // We now get the column index of the thumbnail id 
      _columnIndex = _cursor.getColumnIndex(_ID); 
      //initialize 
      _videosId = new int[count]; 
      //move position to first element 
      _cursor.moveToFirst();   
      for(int i=0;i<count;i++) 
      {   
       int id = _cursor.getInt(_columnIndex); 
       // 
       _videosId[i]= id; 
       // 
       _cursor.moveToNext(); 
       // 
      } 
     }catch(Exception ex) 
     { 
      showToast(ex.getMessage().toString());   
     } 

    } 
    public View getView(int position, View convertView, ViewGroup parent) 
    { 
     ImageView imgVw= new ImageView(_context);; 
     try 
     { 
      if(convertView!=null) 
      { 
       imgVw= (ImageView) convertView; 
      } 
      imgVw.setImageBitmap(getImage(_videosId[position])); 
      imgVw.setAdjustViewBounds(true); 
      imgVw.setBackgroundColor(Color.WHITE); 
      imgVw.setLayoutParams(new Gallery.LayoutParams(150, 100)); 
      imgVw.setPadding(5,5,5,5); 
      imgVw.setScaleType(ImageView.ScaleType.FIT_CENTER); 
     } 
     catch(Exception ex) 
     { 
      System.out.println("StartActivity:getView()-135: ex " + ex.getClass() +", "+ ex.getMessage()); 
     } 
     return imgVw; 
    } 


private final static Uri MEDIA_EXTERNAL_CONTENT_URI = MediaStore.Video.Media.EXTERNAL_CONTENT_URI; 
    private final static String _ID = MediaStore.Video.Media._ID; 
    private final static String MEDIA_DATA = MediaStore.Video.Media.DATA; 
but the result is : called showToast("meiyou"); 

のGridView

にビデオサムネイルを表示したい

::

ERROR/AndroidRuntime(290):java.lang.ClassCastException:android.widget.AbsListView$LayoutParams 
ERROR/AndroidRuntime(290):at android.widget.Gallery.setUpChild(Gallery.java:769) 
ERROR/AndroidRuntime(290): at android.widget.Gallery.makeAndAddView(Gallery.java:738) 
ERROR/AndroidRuntime(290):  at android.widget.Gallery.layout(Gallery.java:622) 
ERROR/AndroidRuntime(290): at android.widget.Gallery.onLayout(Gallery.java:336) 
ERROR/AndroidRuntime(290):  at android.view.View.layout(View.java:7035) 
ERROR/AndroidRuntime(290):  at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1249) 
ERROR/AndroidRuntime(290):  at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1125) 
: ERROR/AndroidRuntime(290):  at android.widget.LinearLayout.onLayout(LinearLayout.java:1042) 
: ERROR/AndroidRuntime(290):  at android.view.View.layout(View.java:7035) 
ERROR/AndroidRuntime(290):  at android.widget.FrameLayout.onLayout(FrameLayout.java:333) 

Answer 1

変更このライン

imgVw.setLayoutParams(new Gallery.LayoutParams(150, 100)); 

この

imgVw.setLayoutParams(new GridView.LayoutParams(150, 100)); 

に0