android - 如何在android中的asynctask中创建toast

Question

我已经这样做了:

doInBackground(String... prams){
    Toast.makeText(getApplicationContext(),
                            "Server too busy. Please try after sometime.",
                            Toast.LENGTH_LONG).show();}

出现错误。请帮忙。

Answer 1

您无法在 doInBackground 内更新 UI。执行此操作以显示 toast

getActivity().runOnUiThread(new Runnable() {

            @Override
            public void run() {
                Toast.makeText(getApplicationContext(),
                        "Server too busy. Please try after sometime.",
                        Toast.LENGTH_LONG).show();

            }
        });

它会解决你的问题