使用可绘制名称分配ImageView src

Question

为简单起见：我从JSON文件中获取了可绘制的名称，现在是变量，如何将正确的drawable分配给名为ImageView的{​​{1}}？我们可以假设具有该名称的drawable始终存在。

String

Answer 1

imageView.setImageResource(getDrawableFromName(context,"image1.png""));

public static int getDrawableFromName(Context context, String drawableName) {
    return context.getResources().getIdentifier(drawableName, "drawable",
            context.getPackageName());
}

Answer 2

传递String source并获得可绘制的内容。

private Drawable getImage(String source){
        File imgFile = new File(source);//Absolute path
        Bitmap myBitmap = null;
        Drawable drawable = null;
        if(imgFile.exists()) {
            myBitmap= BitmapFactory.decodeFile(imgFile.getAbsolutePath());
            drawable = new BitmapDrawable(mContext.getResources(),myBitmap);
        }
        return  drawable;
    }