Android动态设置android:drawableLeft|Right|Top|Bottom 并根据分辨率自适应

http://blog.sina.com.cn/s/blog_4b93170a0102e1m9.html

//调用setCompoundDrawables时，必须调用Drawable.setBounds()方法,否则图片不显示最主要一点，不然不显示图片，搞了半天

/**  * 从png文件得到Bitmap  * 并且将尺寸调整为宽=w、高=h  */   public static Bitmap getMyBitmap(String imageName, int w, int h){       String filePath = IMAGE_PATH + "/" + imageName + ".png";       Bitmap oldbmp = BitmapFactory.decodeFile(filePath);       if(oldbmp!=null){           int width = oldbmp.getWidth();           int height = oldbmp.getHeight();           Matrix matrix = new Matrix();           float scaleWidth = ((float) w / width);           float scaleHeight = ((float) h / height);           matrix.postScale(scaleWidth, scaleHeight);           Bitmap newbmp = Bitmap.createBitmap(oldbmp, 0, 0, width, height, matrix, true);           return newbmp;       }       else{           return null;       }   }

调整分辨率

http://blog.sina.com.cn/s/blog_4607d856010125sl.htmlBitmapDrawable的使用转换

更多相关文章

随机推荐