Some operation processing of Android image

1, Android Image transparency processing: 0-100 To set the transparency from: http://blog.csdn.net/yanzi1225627/article/details/29661935

Way One

  Public StaticBitmap Gettransparentbitmap (Bitmap sourceimg,intNumber ) {        int[] Argb =New int[Sourceimg.getwidth () *sourceimg.getheight ()]; Sourceimg.getpixels (ARGB,0, Sourceimg.getwidth (), 0, 0, sourceimg. GetWidth (), Sourceimg.getheight ());//get the ARGB value of the picture Number= number * 255/100;  for(inti = 0; i < argb.length; i++) {Argb[i]= (number << 24) | (Argb[i] & 0X00FFFFFF); } sourceimg=Bitmap.createbitmap (ARGB, Sourceimg.getwidth (), sourceimg. GetHeight (), Bitmap.Config.ARGB_8888); returnsourceimg; }

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Way two:

classDrawcanvasextendsView { PublicDrawcanvas (Context context) {Super(context); } @Overrideprotected voidOnDraw (canvas canvas) {Super. OnDraw (canvas); //get the bitmap of resource picturesBitmap Vbitmap = Bitmapfactory.decoderesource ( This. Getresources (), R.drawable.icon            ); //Creating Paint ObjectsPaint Vpaint =NewPaint ();   Vpaint. SetStyle (Paint.Style.STROKE); //HollowVpaint. Setalpha (75);//   Canvas.drawbitmap (Vbitmap,50, 100,NULL);//No TransparencyCanvas.drawbitmap (Vbitmap, vpaint);//have transparent    }  }  

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Some operation processing of Android image