android拨打电话

CallPhone

首先建立一个android项目,打开Layout下的main.xml文件,,,在图形界面上先拖控件一个水平布局,在布局里面再添加2个空间,一个是Textview,一个是EditText,在Textview上创建一个字符串,写上”请输入电话”,,,把Edittext的Id设置为callphone,然后在下面添加一个按钮,把按钮上的文字设置为”拨号”,ID设置为callphoneBtn,,保存main.xml文件….

main.xml文件的代码是

<?xml version="1.0" encoding="utf-8"?>

<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"

   android:layout_width="fill_parent"

   android:layout_height="fill_parent"

   android:orientation="vertical" >

   <LinearLayout

       android:layout_width="match_parent"

       android:layout_height="wrap_content" >

       <TextView

           android:id="@+id/textView1"

           android:layout_width="wrap_content"

           android:layout_height="wrap_content"

           android:text="@string/ts" />

        <EditText

           android:id="@+id/callphone"

           android:layout_width="wrap_content"

           android:layout_height="wrap_content"

           android:layout_weight="1"

           android:ems="10"

           android:inputType="phone" >

           <requestFocus />

       </EditText>

   </LinearLayout>

   <Button  

       android:id="@+id/callphoneBtn"

       android:layout_width="87dp"

       android:layout_height="wrap_content"

       android:text="@string/CallPhone" />

</LinearLayout>

 

 

然后打开activity包下的CallPhoneActivity.java的文件,在Oncreate方法下写代码,,先获取一下按钮Button,再获取一下文本框中的字符串

在按钮上添加事件

package com.csdn.activity;

 

import android.app.Activity;

import android.content.Intent;

import android.net.Uri;

import android.os.Bundle;

import android.text.Editable;

import android.view.View;

import android.widget.Button;

import android.widget.EditText;

 

public class CallPhoneActivity extendsActivity {

   /** Called when the activity is first created. */

   @Override

   public void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);

       setContentView(R.layout.main);

       Button callphonebtn=(Button) findViewById(R.id.callphoneBtn);

       callphonebtn.setOnClickListener(new View.OnClickListener() {

                    

                     @Override

                     publicvoid onClick(View v) {

                            EditTextedittext=(EditText) findViewById(R.id.callphone);

                            Editableeditable=edittext.getText();

                            Intentintent=newIntent(Intent.ACTION_CALL,Uri.parse("tel:"+editable.toString()));

                            startActivity(intent);

                     }

              });

    }

}

 

最后添加权限

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

当输入电话点击拨号显示的效果如下