android调用拨号程序

android调用拨号程序

1、定义布局文件activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    tools:context="${relativePackage}.${activityClass}" >    <EditText        android:id="@+id/tel"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        />        <Button        android:id="@+id/mybut"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="拨打电话"/></LinearLayout>

2.定义activity程序，调用拨号操作

package com.example.calltest;import android.app.Activity;import android.content.Intent;import android.net.Uri;import android.os.Bundle;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;public class MainActivity extends Activity {private Button mybut;private EditText tel;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        mybut=(Button) findViewById(R.id.mybut);        tel=(EditText) findViewById(R.id.tel);        mybut.setOnClickListener(new OnClickListenercall());    }    private class OnClickListenercall implements OnClickListener{@Overridepublic void onClick(View v) {// TODO Auto-generated method stubString telstr=tel.getText().toString();Uri uri=Uri.parse("tel:"+telstr);Intent intent=new Intent();intent.setAction(Intent.ACTION_DIAL);intent.setData(uri);startActivity(intent);}        }}

为了显示给用户拨号的主界面，所以讲Action的类型设置为ACTION_DIAL。

3、修改AndroidManifest.xml，增加配置

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

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.example.calltest"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk        android:minSdkVersion="8"        android:targetSdkVersion="21" />        <uses-permission android:name="android.permission.CALL_PHONE"/>    <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >        <activity            android:name=".MainActivity"            android:label="@string/app_name" >            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>    </application></manifest>