CallPhone

首先建立一個android項目,打開Layout下的main.xml文件,,,在圖形界面上先拖控件一個水平布局,在布局里面再添加2個空間,一個是Textview,一個是EditText,在Textview上創建一個字符串,寫上”請輸入電話”,,,把Edittext的Id設置為callphone,然后在下面添加一個按鈕,把按鈕上的文字設置為”撥號”,ID設置為callphoneBtn,,保存main.xml文件….

main.xml文件的代碼是

<?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>

?

?

然后打開activity包下的CallPhoneActivity.java的文件,在Oncreate方法下寫代碼,,先獲取一下按鈕Button,再獲取一下文本框中的字符串

在按鈕上添加事件

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);

???????????????????? }

????????????? });

??? }

}

?

最后添加權限

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

當輸入電話點擊撥號顯示的效果如下

轉載于:https://www.cnblogs.com/javaTest/archive/2012/07/12/2589457.html

總結

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