edittext的requestFocus作用
edittext的requestFocus作用
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/etxt1" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/etxt2" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/tosecond"
android:id="@+id/btn1" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/tofirst"
android:id="@+id/btn2" />
public class RequestFocusActivity extends Activity {
EditText etxt1;
EditText etxt2;
Button btn1;
Button btn2;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_request_focus);
etxt1 = (EditText)findViewById(R.id.etxt1);
etxt2 = (EditText)findViewById(R.id.etxt2);
btn1 = (Button)findViewById(R.id.btn1);
btn2 = (Button)findViewById(R.id.btn2);
btn1.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
etxt2.requestFocus();
}
});
btn2.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
etxt1.requestFocus();
}
});
}
}