本文实例为大家分享了Android OnFocuChangeListener焦点事件的具体代码，供大家参考，具体内容如下
界面
打开“res/layout/activity_main.xml”文件。
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <EditText android:id="@+id/mobile" android:layout_width="190dp" android:layout_height="wrap_content" android:text="手机号码" /> <EditText android:id="@+id/address" android:layout_width="190dp" android:layout_height="wrap_content" android:text="地址" /></LinearLayout>
MainActivity.java
package com.example.whaletosea.application04;
import android.os.Bundle;
import android.app.Activity;
import android.view.View;
import android.widget.EditText;
import android.view.View.OnClickListener;
import android.view.View.OnFocusChangeListener;
import android.widget.Toast;
public class MainActivity extends Activity {
//声明 EditText private EditText etMobile=null;
private EditText etAddress=null;
@Override protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//获取EditText etMobile = (EditText) super.findViewById(R.id.mobile);
etAddress = (EditText) super.findViewById(R.id.address);
//注册OnClick OnFocusChange监听器 etMobile.setOnClickListener(new MobileOnClickListener());
etMobile.setOnFocusChangeListener(new MobileOnFocusChanageListener());
etAddress.setOnClickListener(new AddressOnClickListener());
etAddress.setOnFocusChangeListener(new AddressOnFocusChanageListener());
}
//MobileOnClickListener单击监听器 private class MobileOnClickListener implements OnClickListener{
@Override public void onClick(View view ){
etMobile.setText("");
}
}
//MobileOnFocusChanageListener焦点监听器 private class MobileOnFocusChanageListener implements OnFocusChangeListener{
@Override public void onFocusChange(View view ,boolean hasFocus){
if(view.getId()==etMobile.getId()) Toast.makeText(getApplicationContext(),"手机文本框获得焦点！",Toast.LENGTH_LONG).show();
}
}
//AddressOnClickListener单击监听器 private class AddressOnClickListener implements OnClickListener{
@Override public void onClick(View view){
etAddress.setText("");
}
}
//MobileOnFocusChanageListener焦点监听器 private class AddressOnFocusChanageListener implements OnFocusChangeListener{
@Override public void onFocusChange(View view,boolean hasFocus){
if(view.getId()==etAddress.getId()) Toast.makeText(getApplicationContext(), "地址文本框获得焦点！",Toast.LENGTH_LONG).show();
}
}
效果图：
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。
