Android 拨号器的简单实现

功能实现：一个EditView 一个拨打按钮，输入号码跳转到拨号界面

界面布局：activity_call.xml

　　//线性垂直布局：一个EditView文本、一个Button按钮
 1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

 2     xmlns:tools="http://schemas.android.com/tools"

 3     android:layout_width="match_parent"

 4     android:layout_height="match_parent"

 5     android:orientation="vertical"

 6     android:paddingBottom="@dimen/activity_vertical_margin"

 7     android:paddingLeft="@dimen/activity_horizontal_margin"

 8     android:paddingRight="@dimen/activity_horizontal_margin"

 9     android:paddingTop="@dimen/activity_vertical_margin"

10     tools:context=".PhoneActivity" >

11 

12     <TextView

13         android:layout_width="wrap_content"

14         android:layout_height="wrap_content"

15         android:text="请输入电话" />

16 

17     <EditText

18         android:id="@+id/editText1"

19         android:layout_width="fill_parent"

20         android:layout_height="wrap_content"

21         android:inputType="phone" />

22 

23     <Button

24         android:id="@+id/callsumbit"

25         android:layout_width="wrap_content"

26         android:layout_height="wrap_content"

27         android:layout_gravity="center"

28         android:text="拨打电话" />

29 

30 </LinearLayout>

CallActivity的Create方法

 1 protected void onCreate(Bundle savedInstanceState) {

 2         super.onCreate(savedInstanceState);

 3         setContentView(R.layout.activity_call);

 4         Button btn = (Button) findViewById(R.id.callsumbit);

 5         btn.setOnClickListener(new OnClickListener() {

 6 

 7             @Override

 8             public void onClick(View v) {

 9                 EditText etNumber = (EditText) findViewById(R.id.editText1);

10 

11                 String number = etNumber.getText().toString();

12                 Intent intent = new Intent();

13                 intent.setAction(Intent.ACTION_CALL);

14                 intent.setData(Uri.parse("tel:" + number));

15                 startActivity(intent);

16             }

17         });

18     }

增加拨打电话的权限：AndroidManifest.xml

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

 2 <manifest xmlns:android="http://schemas.android.com/apk/res/android"

 3     package="com.ccec.callphone"

 4     android:versionCode="1"

 5     android:versionName="1.0" >

 6 

 7     <uses-sdk

 8         android:minSdkVersion="8"

 9         android:targetSdkVersion="18" />

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

11 

12     <application

13         android:allowBackup="true"

14         android:icon="@drawable/ic_launcher"

15         android:label="@string/app_name"

16         android:theme="@style/AppTheme" >

17         <activity

18             android:name="com.ccec.callphone.CallActivity"

19             android:label="@string/app_name" >

20             <intent-filter>

21                 <action android:name="android.intent.action.MAIN" />

22 

23                 <category android:name="android.intent.category.LAUNCHER" />

24             </intent-filter>

25         </activity>

26     </application>

27 

28 </manifest>

至此可以实现拨号功能。