自定义Toast

public class TopToastView {
    /** 
     * 初始化Toast提示，并show
     * */
    public static void initToast(Context context,String top_hint,int img_res){
        Toast topToast = Toast.makeText(context, top_hint, Toast.LENGTH_LONG);
        topToast.setGravity(Gravity.CENTER|Gravity.TOP, 0, 0);
        LinearLayout ll_bg = (LinearLayout) topToast.getView();
        ImageView img_bg = new ImageView(context);
        img_bg.setImageResource(img_res);
        ll_bg.addView(img_bg , 0);
        topToast.show();
    }
}