Question

如何从按下onClick时调用的函数中获取用户键入的EditText的值。我在下面尝试了这个，但它没有用。谢谢你的帮助。

 <EditText android:id="@+id/myEditT" />

<Button android:text="MY BUTTON" android:onClick="GetThis" />

public void GetThis(View view) {


    EditText x = (EditText)parentView.findViewById( R.id.myEditT);

    // alert the x variable

 }

Answer 1

在XML中，

<EditText android:id="@+id/myEditT"
   android:layout_height="wrap_content"
   android:layout_width="wrap_content"/>
<Button android:id="@+id/myButton"
   android:layout_height="wrap_content"
   android:layout_width="wrap_content"/>

在Java中，

public void onCreate(Bundle saved){
    super.onCreate(saved);
    setContentView(R.layout.your_xml);
    Button btn = (Button) findViewById(R.id.myButton);
    EditText edtText = (EditText) findViewById(R.id.myEdit);
    btn.setOnClickListener(new onClickListener(
        public void onClick(View v){
            String value = edtText.getText().toString();
        }
    )); 
}

Answer 2

EditText x = (EditText) findViewById(R.id.myEditT);
String your_text = x.getText().toString();

Answer 3

public void GetThis(View view) {
    EditText x = (EditText)view.findViewById(R.id.myEditT);
    String edittextvalue = x.getText().toString();
}

Answer 4

EditText x;
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_xml);
    x = (EditText)parentView.findViewById( R.id.myEditT);
    public void GetThis(View view) {
    String s=x.getText().toString();
}

Answer 5

EditText x = (EditText)findViewById(R.id.myEditT);

public void GetThis(View view) {
    String getEditTextValue = x.getText().toString();
    Toast.makeText(getApplicationContext(), getEditTextValue, Toast.LENGTH_LONG).show();
}

从onclick函数获取EditText值

5 个答案: