android---获取值AndroidManifest.xml中meta-data的value

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//在Activity应用<meta-data>元素。  

ActivityInfo info = this.getPackageManager()  

        .getActivityInfo(getComponentName(),PackageManager.GET_META_DATA);  

info.metaData.getString("meta_name");  

  

//在application应用<meta-data>元素。  

ApplicationInfo appInfo = this.getPackageManager()  

        .getApplicationInfo(getPackageName(),PackageManager.GET_META_DATA);  

appInfo.metaData.getString("meta_name");  

  

//在service应用<meta-data>元素。  

ComponentName cn = new ComponentName(this, MetaDataService.class);  

ServiceInfo info = this.getPackageManager().getServiceInfo(cn, PackageManager.GET_META_DATA);  

info.metaData.getString("meta_name");  

  

//在receiver应用<meta-data>元素。  

ComponentName cn = new ComponentName(context, MetaDataReceiver.class);  

ActivityInfo info = context.getPackageManager().getReceiverInfo(cn, PackageManager.GET_META_DATA);  

info.metaData.getString("meta_name");