Question

我使用Toast来显示一些消息但是有些麻烦。有我的代码：

  private Button btPush;
    private EditText etxMessage;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btPush = (Button) findViewById(R.id.btPushMe);
        btPush.setOnClickListener(sayHello);

        etxMessage = (EditText) findViewById(R.id.editText1);
    }

    View.OnClickListener sayHello = new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            LayoutInflater inflated = getLayoutInflater();
            View layout = inflated.inflate(R.layout.activity_main,(ViewGroup) findViewById(R.id.layout));
            String string = etxMessage.getText().toString();
            Toast toast = new Toast(getApplicationContext());
            toast.setText(string);
            toast.setGravity(Gravity.TOP|Gravity.LEFT, 0, 0);
            toast.setDuration(Toast.LENGTH_LONG);
            toast.setView(layout);
            toast.show();
            //Toast.makeText(getApplicationContext(),string,Toast.LENGTH_SHORT).show();
        }
    };

如果我使用：

Toast.makeText(getApplicationContext(),string,Toast.LENGTH_SHORT).show();

有效！

Answer 1

Toast.makeText（YourActivity.this，“你的文字在这里”，Toast.LENGTH_LONG）.show（）;

Answer 2

你可以尝试这个..如果错误仍然存在然后粘贴你的log-cat输出，我们很容易给你回答

      Toast msg = Toast.makeText(ToastExample.this,"YOUR TEXT HERE", Toast.LENGTH_LONG);     
   msg.show();

Answer 3

试试这个：

LayoutInflater inflated = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View layout = inflated.inflate(R.layout.activity_main, null);

Answer 4

试试这样的布局：

LayoutInflater inflated = LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);     
View layout = inflated.inflate(R.layout.activity_main, null);

Answer 5

使用Toast显示消息的许多方法......

使用Toast对象...
Toast toast = new Toast（YourClassName.this）;

或尝试从click事件中显示然后使用此代码... 但这个'v'是View的对象。

Toast toast = new Toast（v.getContext（））;

或

以下代码，您可以在YourActivityClass内的任何地方使用...
Toast.makeText（YourClassName.this，“Your Message”，Toast.LENGTH_LONG）.show（）;

使用Toast时出错

5 个答案: