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来源：互联网发布：c语言for是什么意思编辑：程序博客网时间：2024/06/05 08:32

package com.example.day01_1;import android.app.Activity;import android.content.Intent;import android.net.Uri;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.Toast;public class MainActivity extends Activity{    private Button call=null;    private Button mesage=null;    private Button jishiqi=null;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        call=(Button)findViewById(R.id.button1);        mesage=(Button)findViewById(R.id.button2);        jishiqi=(Button)findViewById(R.id.button3);        call.setOnClickListener(new OnClickListener(){            @Override            public void onClick(View v) {                // TODO 自动生成的方法存根                Uri s=Uri.parse("tel:123456789");                Intent intent=new Intent(Intent.ACTION_CALL,s);                startActivity(intent);            }});        mesage.setOnClickListener(new OnClickListener(){            @Override            public void onClick(View v) {                // TODO 自动生成的方法存根                //第一种                Uri s=Uri.parse("sms:123456789");                Intent intent=new Intent(Intent.ACTION_SENDTO,s);                intent.putExtra("sms_body", "你好！");                startActivity(intent);                //第二种//              Intent intent=new Intent();//              intent.setAction(Intent.ACTION_SENDTO);//              intent.setData(Uri.parse("sms:5554"));//              intent.putExtra("sms_body", "how are you...");//              startActivity(intent);            }});        jishiqi.setOnClickListener(new OnClickListener(){            @Override            public void onClick(View v) {                // TODO 自动生成的方法存根                try{                    //这儿老调取不成功第三方，谁知道可以回复我。谢谢                    Intent intent=new Intent();                    intent.setClassName("com.tencent.qq",                            "com.tencent.qq.");                    startActivity(intent);                }                catch(Exception e){                    System.out.println(e);                    Toast.makeText(MainActivity.this, "没有找到对应的程序", Toast.LENGTH_SHORT).show();                }            }});    }}

界面布局

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context="com.example.day01_1.MainActivity" >    <TextView        android:id="@+id/textView1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="@string/hello_world" />    <Button        android:id="@+id/button1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/textView1"        android:layout_below="@+id/textView1"        android:layout_marginLeft="24dp"        android:layout_marginTop="90dp"        android:text="@string/call" />    <Button        android:id="@+id/button2"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignBaseline="@+id/button1"        android:layout_alignBottom="@+id/button1"        android:layout_alignParentRight="true"        android:layout_marginRight="54dp"        android:text="@string/mesage" />    <Button        android:id="@+id/button3"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_below="@+id/button1"        android:layout_marginTop="94dp"        android:layout_toRightOf="@+id/button1"        android:text="@string/jishiqi" /></RelativeLayout>

字符串声明

<?xml version="1.0" encoding="utf-8"?><resources>    <string name="app_name">day01-1</string>    <string name="hello_world">Hello world!</string>    <string name="action_settings">Settings</string>    <string name="mesage">发信息</string>    <string name="call">打电话</string>    <string name="jishiqi">qq</string></resources>

//注册权限

 <uses-permission android:name="android.permission.CALL_PHONE"/>    <uses-permission android:name="android.permission.SEND_SMS"/>

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