Utilisation de WallpaperManager dans Android pour mettre en fond d'écran

Question

Voici mes codes, je veux utiliser le gestionnaire de fond d'écran pour définir comme fond d'écran. J'utilise Universal Image Loader, mais je ne sais pas comment mettre en œuvre le gestionnaire de fond d'écran. Mon setWall() ne fonctionne pas, un peu confus.

import android.graphics.Bitmap; 
    import android.os.Bundle; 
    import android.os.Parcelable; 
    import android.support.v4.view.PagerAdapter; 
    import android.support.v4.view.ViewPager; 
    import android.view.LayoutInflater; 
    import android.view.Menu; 
    import android.view.MenuItem; 
    import android.view.View; 
    import android.view.animation.Animation; 
    import android.view.animation.AnimationUtils; 
    import android.widget.ImageView; 
    import android.widget.ProgressBar; 
    import android.widget.Toast; 

    import com.nostra13.universalimageloader.core.DisplayImageOptions; 
    import com.nostra13.universalimageloader.core.assist.FailReason; 
    import com.nostra13.universalimageloader.core.assist.ImageLoadingListener; 
    import com.nostra13.universalimageloader.core.assist.ImageScaleType; 


    public class ImageActivity extends BaseActivity { 

     private DisplayImageOptions imageoptions; 

     private ViewPager imagepager; 

     public void onCreate(Bundle savedInstanceState) { 
      super.onCreate(savedInstanceState); 

      setContentView(R.layout.imagepager); 


      Bundle bundle = getIntent().getExtras(); 
      String[] imageUrls = bundle.getStringArray(Extra.IMAGES); 
      int pagerPosition = bundle.getInt(Extra.IMAGE_POSITION, 0); 
      imageoptions = new DisplayImageOptions.Builder() 
       .showImageForEmptyUri(R.drawable.noimage) 
       .cacheOnDisc() 
       .imageScaleType(ImageScaleType.EXACT) 
       .build(); 

      imagepager= (ViewPager) findViewById(R.id.imagepager); 
      imagepager.setAdapter(new ImagePagerAdapter(imageUrls)); 
      imagepager.setCurrentItem(pagerPosition); 
     } 


public void setWall() { 

    WallpaperManager myWallpaperManager 
    = WallpaperManager.getInstance(getApplicationContext()); 
    try { 
    myWallpaperManager.setResource(R.drawable.app_icon); //<--My app just set my app icon image as wallpaper, this is not I wanted. I wanted to set my selected image as wallpaper 
    } catch (IOException e) { 
    // TODO Auto-generated catch block 
    e.printStackTrace(); 
    } 

} 

@Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     getMenuInflater().inflate(R.menu.main_menu, menu); 
     return true; 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     switch (item.getItemId()) { 
      case R.id.setWall: 
       setWall(); 
       return true; 
      default: 
       return false; 
     } 
    } 

@Override 
    protected void onStop() { 
     imageLoader.stop(); 
     super.onStop(); 
    } 

    private class ImagePagerAdapter extends PagerAdapter { 

     private String[] images; 
     private LayoutInflater inflater; 

     ImagePagerAdapter(String[] images) { 
      this.images = images; 
      inflater = getLayoutInflater(); 
     } 

     @Override 
     public void destroyItem(View container, int position, Object object) { 
      ((ViewPager) container).removeView((View) object); 
     } 

     @Override 
     public void finishUpdate(View container) { 
     } 

     @Override 
     public int getCount() { 
      return images.length; 
     } 

     @Override 
     public Object instantiateItem(View view, int position) { 
      final View imageLayout = inflater.inflate(R.layout.item_pager_image, null); 
      final ImageView imageView = (ImageView) imageLayout.findViewById(R.id.image); 
      final ProgressBar spinner = (ProgressBar) imageLayout.findViewById(R.id.loading); 

      imageLoader.displayImage(images[position], imageView, imageoptions, new ImageLoadingListener() { 
       public void onLoadingStarted() { 
        spinner.setVisibility(View.VISIBLE); 
       } 

       public void onLoadingFailed(FailReason failReason) { 
        String message = null; 
        switch (failReason) { 
         case IO_ERROR: 
          message = "Input/Output error"; 
          break; 
         case OUT_OF_MEMORY: 
          message = "Out Of Memory error"; 
          break; 
         case UNKNOWN: 
          message = "Unknown error"; 
          break; 
        } 
        Toast.makeText(ImagePagerActivity.this, message, Toast.LENGTH_SHORT).show(); 

        spinner.setVisibility(View.GONE); 
        imageView.setImageResource(android.R.drawable.ic_delete); 
       } 

       public void onLoadingComplete(Bitmap loadedImage) { 
        spinner.setVisibility(View.GONE); 
        Animation anim = AnimationUtils.loadAnimation(ImagePagerActivity.this, R.anim.fade_in); 
        imageView.setAnimation(anim); 
        anim.start(); 
       } 

       public void onLoadingCancelled() { 
        // Do nothing 
       } 
      }); 

      ((ViewPager) view).addView(imageLayout, 0); 
      return imageLayout; 
     } 

     @Override 
     public boolean isViewFromObject(View view, Object object) { 
      return view.equals(object); 
     } 

     @Override 
     public void restoreState(Parcelable state, ClassLoader loader) { 
     } 

     @Override 
     public Parcelable saveState() { 
      return null; 
     } 

     @Override 
     public void startUpdate(View container) { 
     } 
    } 





} 

Answer 1

Au lieu de myWallpaperManager.setResource(0); Pourquoi ne pas vous utilisez le myWallpapaerManager.setResource(R.drawable.yourimage)

Jetez un oeil à Wallpapaer Manager example. Hope this helps vous beaucoup.