package com.example.yanlei.yl;import android.graphics.Color;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.Menu;import android.view.MenuItem;import android.widget.TextView;import android.text.Html;import android.text.Html.ImageGetter;import java.util.regex.Matcher;import java.util.regex.Pattern;import android.text.Editable;import android.text.TextWatcher;import android.widget.EditText;import android.widget.Button;import android.app.Activity;import android.app.AlertDialog;import android.app.AlertDialog.Builder;import android.content.DialogInterface;import android.content.DialogInterface.OnClickListener;import android.app.Activity;import android.content.Intent;import android.net.Uri;import android.os.Bundle;import android.view.Menu;import android.view.View;import android.widget.Button;import android.widget.EditText;protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); View btn1 = this.findViewById(R.id.button1); btn1.setOnClickListener(new ButtonClickListener()); } private class ButtonClickListener implements View.OnClickListener { public void onClick(View v) { //System.exit(0); android.os.Process.killProcess(android.os.Process.myPid()); } }
<Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="退出程序" android:id="@+id/button1" android:layout_marginTop="157dp" android:layout_alignParentTop="true" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" android:layout_marginLeft="96dp" android:layout_marginStart="96dp" />
原标题:android 加一个按钮,退出程序
关键词:Android