记录toast使用例子

记录toast使用例子：

protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  myTextView = (TextView)findViewById(R.id.textView1);
  myEditText = (EditText)findViewById(R.id.editText1);
  myButton = (Button)findViewById(R.id.button1);
  myButton.setOnClickListener(new OnClickListener()
  {
   @Override
   public void onClick(View v) {
    // TODO Auto-generated method stub
    Editable str;
    str = myEditText.getText();
    
    Toast.makeText(MainActivity.this, "your message " + str.toString() + " sended ",
      Toast.LENGTH_LONG).show();
    myEditText.setText("");
   }
  });

备注：

str要被定义为editable，定义为string，显示错误；