自定义Toast

public class CustomToast {
    public static void customToastShow(Context context,String content,int duration)
    {    
        Toast toast=new Toast(context);//实例化一个Toast
        toast.setDuration(duration);//设置Toast持续时间
        toast.setGravity(Gravity.BOTTOM, 0, 100);//设置Toast显示位置
        LinearLayout toastLayout=new LinearLayout(context);
        toastLayout.setOrientation(LinearLayout.HORIZONTAL);
        toastLayout.setGravity(Gravity.BOTTOM);//此处默认设置为从底部弹出
        
        TextView tv_content=new TextView(context);//实例化一个TextView
        tv_content.setText(content);//给Textview赋值
        tv_content.setTextSize(16);//设置TextView字体大小
        tv_content.setTextColor(android.graphics.Color.WHITE);//设置字体颜色
        tv_content.setGravity(Gravity.CENTER);//设置TextView在Toast中显示的位置
        tv_content.setBackgroundResource(R.drawable.toast_bg);//设置TextView的背景
        toastLayout.addView(tv_content, LinearLayout.LayoutParams.WRAP_CONTENT,
                100);  //设置Toast宽高
        toast.setView(toastLayout);
        toast.show();
        
    }
}

CustomToast.customToastShow(getApplicationContext()," 再按一次退出 ", Toast.LENGTH_LONG);