Android之讀取 AndroidManifest.xml 中的資料：版本号、應用名稱、自定義K-V資料（meta-data）

1 版本資訊、應用名稱


2 Appliction 的Meta-data


3 Activity中的Meta-data



AndroidManifest.xml中的定義如下：

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

package="hpc.cai.test01"

android:versionCode="1"

android:versionName="1.0" >

<application

android:icon="@drawable/ic_launcher"

android:label="@string/app_name" >

<meta-data

android:name="tel"

android:value="cdma-13366350377" >

</meta-data>

<meta-data

android:name="channel"

android:value="eben" />



<activity

android:name="hpc.cai.test.Test1Activity"

android:label="@string/app_name" >

<meta-data

android:name="name"

android:value="自強不息" >

</meta-data>

<meta-data

android:name="city"

android:value="北京" />



<intent-filter>

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



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

</intent-filter>

</activity>



java 代碼：



/**

* activity MetaData讀取

*/

private void testActivityMetaData() {

ActivityInfo info;

try {

info = getPackageManager().getActivityInfo(getComponentName(),

PackageManager.GET_META_DATA);



String msg = info.metaData.getString("name");

System.out.println("name:" + msg);



msg = info.metaData.getString("city");

System.out.println("city:" + msg);



} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

/**

* appliction MetaData讀取

*/

private void testApplicationMetaData() {

ApplicationInfo info;

try {

info = this.getPackageManager().getApplicationInfo(

getPackageName(), PackageManager.GET_META_DATA);



String msg = info.metaData.getString("tel");

System.out.println("tel:" + msg);



msg = info.metaData.getString("channel");

System.out.println("channel:" + msg);



} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

/**

* 測試版本資訊

*/www.2cto.com

private void getVersion(){

PackageInfo pkg;

try {

pkg = getPackageManager().getPackageInfo(getApplication().getPackageName(), 0);

String appName = pkg.applicationInfo.loadLabel(getPackageManager()).toString(); 

String versionName = pkg.versionName; 

System.out.println("appName:" + appName);

System.out.println("versionName:" + versionName);

} catch (NameNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} 

}      

16:37:54.442: I/System.out(10213): appName:Test1

16:37:54.442: I/System.out(10213): versionName:1.0

16:37:54.442: I/System.out(10213): tel:cdma-13366350377

16:37:54.442: I/System.out(10213): channel:eben

16:37:54.452: I/System.out(10213): name:自強不息

16:37:54.452: I/System.out(10213): city:北京