如果它採用的是Android

Question

編程設置爲牆紙我已經設置好的1個圖像作爲GridView的圖像mywallpaper，但在此之前，我將其設置爲像主畫面壁紙前需要一個圖像的預覽如何預覽圖像

注：主屏幕圖像的預覽

Answer 1

用於預覽

displayfulimage.xml

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/llFullImage" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:orientation="vertical" > 

    <ImageView 
     android:id="@+id/imgvFullImage" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_weight="0.65" /> 


    <TextView 
     android:id="@+id/txtImageName" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_weight="0.10" 
     android:text="Image Name" 
     android:textAppearance="?android:attr/textAppearanceLarge" 
     android:gravity="center"/> 

</LinearLayout> 

檢查FOLL創建一個XML文件欠款代碼。它可能有一些幫助... 注意事項::: 1. getView（）2. onItemClick（）

public class MembersGallery extends Activity implements OnItemClickListener{ 

    GridView gvMembers; 
    int values[]={R.drawable.a,R.drawable.b,R.drawable.c,R.drawable.d,R.drawable.e,R.drawable.f}; 
    ImageView im; 


    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.memberimages); 

     gvMembers =(GridView)findViewById(R.id.gvMembers); 
     MyAdapter myad = new MyAdapter(); 
     gvMembers.setAdapter(myad); 
     gvMembers.setOnItemClickListener(this); 
    } 

    class MyAdapter extends BaseAdapter{ 

     @Override 
     public int getCount() { 
      // TODO Auto-generated method stub 
      return values.length; 
     } 

     @Override 
     public Object getItem(int position) { 
      // TODO Auto-generated method stub 
      return position; 
     } 

     @Override 
     public long getItemId(int position) { 
      // TODO Auto-generated method stub 
      return position; 
     } 

     @Override 
     public View getView(int position, View convertView, ViewGroup parent) { 
      // TODO Auto-generated method stub 

      im=new ImageView(MembersGallery.this); 
      im.setPadding(6, 6, 6, 6); 
      im.setLayoutParams(new GridView.LayoutParams(85,85)); 
      im.setImageResource(values[position]); 

      return im; 
     }   
    } 


    @Override 
    public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { 
     // TODO Auto-generated method stub 

     //Toast.makeText(this," Clicked", 30).show(); 

     ImageView rImage = new ImageView(this); 
     rImage.setImageResource(values[arg2]); 

     displayFullImage(rImage,250,250);   
    } 


    private void displayFullImage(ImageView im2, int width, int height) { 
     // TODO Auto-generated method stub 

     ImageView tempImageView = im2; 

     AlertDialog.Builder imageDialog = new AlertDialog.Builder(this); 
     LayoutInflater inflater = (LayoutInflater) this.getSystemService(LAYOUT_INFLATER_SERVICE); 

     View layout = inflater.inflate(R.layout.displayfulimage, 
       (ViewGroup) findViewById(R.id.llFullImage)); 
     ImageView image = (ImageView) layout.findViewById(R.id.imgvFullImage); 
     image.setImageDrawable(tempImageView.getDrawable()); 
     imageDialog.setView(layout); 
     imageDialog.setPositiveButton("OK", new DialogInterface.OnClickListener(){ 

      public void onClick(DialogInterface dialog, int which) { 
       dialog.dismiss(); 
      } 

     }); 
     imageDialog.create(); 
     imageDialog.show();  
    } 

}