Android图片大小曲整动态实现主要代码

Android图片大小调整动态实现主要代码

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 private Bitmap getImageFromAssetFile(String fileName,int how){   
    Bitmap image = null ;  
    try {  
           AssetManager am = game.getAssets();   
           InputStream is = am.open(fileName);  
           image = BitmapFactory.decodeStream(is);  
           is.close();  
        }catch (Exception e){   }  
    return zoomImage(image,how);   
 }   
 public Bitmap zoomImage(Bitmap bgimage,int how) {  
       int bmpwidth = bgimage.getWidth();  
       int bmpheight = bgimage.getHeight();   
       float scaleWidth=0;   
       float scaleHeight=0;   
       Matrix matrix = new Matrix();   
       if(how==0){  
        scaleWidth = ((float) width) / bmpwidth;   
        scaleHeight = ((float) height) / bmpheight;  
         }else{   
         scaleWidth=Math.min(width,height)/bmpwidth;   
         scaleHeight=Math.min(width, height)/bmpheight;   
 } 
 private Bitmap getImageFromAssetFile(String fileName,int how){ 
       Bitmap image = null ;   
       try {  
          AssetManager am = game.getAssets();  
          InputStream is = am.open(fileName);  
          image = BitmapFactory.decodeStream(is);  
           is.close();  
            }catch (Exception e){   }; 
       return zoomImage(image,how);   
 }  
 public Bitmap zoomImage(Bitmap bgimage,int how) {  
       int bmpwidth = bgimage.getWidth();  
       int bmpheight = bgimage.getHeight();  
       float scaleWidth=0; 
       float scaleHeight=0;  
       Matrix matrix = new Matrix(); 
        if(how==0){  
        scaleWidth = ((float) width) / bmpwidth;  
        scaleHeight = ((float) height) / bmpheight; 
         }else{  
         scaleWidth=Math.min(width,height)/bmpwidth;  
         scaleHeight=Math.min(width, height)/bmpheight; 
 }