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眾所周知,通過PackageManager可以獲取手機端已安裝的apk文件的信息,具體代碼如下
- PackageManager packageManager = this .getPackageManager();
- List<PackageInfo> packageInfoList = packageManager.getInstalledPackages(0);
複製代碼
通過以上方法,可以得到手機中安裝的所有應用程序,既包括了手動安裝的apk包的信息,也包括了系統預裝的應用軟件的信息,要區分這兩類軟件可使用以下方法:
a.從packageInfoList獲取的packageInfo,再通過packageInfo. applicationInfo獲取applicationInfo。
b.判斷(applicationInfo. flags & ApplicationInfo. FLAG_SYSTEM)的值,該值大於0時,表示獲取的應用為系統預裝的應用,反之則為手動安裝的應用。
大家可以看下代碼,說明已經寫在註釋中。
獲取應用的代碼:
- /**
- * 查詢手機內非系統應用
- * @param context
- * @return
- */
- public static List<PackageInfo> getAllApps(Context context) {
- List<PackageInfo> apps = new ArrayList<PackageInfo>();
- PackageManager pManager = context.getPackageManager();
- //獲取手機內所有應用
- List<PackageInfo> paklist = pManager.getInstalledPackages(0);
- for ( int i = 0 ; i < paklist.size(); i++) {
- PackageInfo pak = (PackageInfo) paklist.get(i);
- //判斷是否為非系統預裝的應用程序
- if ((pak.applicationInfo.flags & pak.applicationInfo.FLAG_SYSTEM) <= 0 ) {
- // customs applications
- apps.add(pak);
- }
- }
- return apps;
- }
複製代碼
獲取圖片、應用名、包名:
- PackageManager pManager = MessageSendActivity.this.getPackageManager();
- List<PackageInfo> appList = Utils.getAllApps(MessageSendActivity. this );
-
- for ( int i= 0 ;i<appList.size();i++) {
- PackageInfo pinfo = appList.get(i);
- ShareItemInfo shareItem = new ShareItemInfo();
- //set Icon
- shareItem.setIcon(pManager.getApplicationIcon(pinfo.applicationInfo));
- //set Application Name
- shareItem.setLabel(pManager.getApplicationLabel(pinfo.applicationInfo).toString());
- //set Package Name
- shareItem.setPackageName(pinfo.applicationInfo.packageName);
-
- }
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其中ShareItemInfo 類是我本地自定義的,各位可以忽略!
另為,有人可能在找分享應用列表,在此一併說下吧。
獲取支持分享的應用的代碼:
- /**
- * 查詢手機內所有支持分享的應用
- * @param context
- * @return
- */
- public static List<ResolveInfo> getShareApps(Context context){
- List<ResolveInfo> mApps = new ArrayList<ResolveInfo>();
- Intent intent= new Intent(Intent.ACTION_SEND, null );
- intent.addCategory(Intent.CATEGORY_DEFAULT);
- intent.setType( "text/plain" );
- PackageManager pManager = context.getPackageManager();
- mApps = pManager.queryIntentActivities(intent,PackageManager.COMPONENT_ENABLED_STATE_DEFAULT);
-
- return mApps;
- }
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由於該方法,返回的並不是PackageInfo 對象。而是 ResolveInfo。因此獲取圖片、應用名、包名的方法不一樣,如下:
- PackageManager pManager = MessageSendActivity. this .getPackageManager();
-
- /*********************查詢手機內所有支持分享的應用******************** */
- List<ResolveInfo> resolveList = Utils.getShareApps(MessageSendActivity. this );
-
- for ( int i= 0 ;i<resolveList.size();i++) {
- ResolveInfo resolve = resolveList.get(i);
- ShareItemInfo shareItem = new ShareItemInfo();
- //set Icon
- shareItem.setIcon(resolve.loadIcon(pManager));
- //set Application Name
- shareItem.setLabel(resolve.loadLabel(pManager).toString());
- //set Package Name
- shareItem.setPackageName(resolve.activityInfo.packageName);
-
- }
複製代碼
總結:
通過PackageInfo 獲取具體信息方法:
包名獲取方法:packageInfo.packageName
icon獲取獲取方法:packageManager.getApplicationIcon(applicationInfo)
應用名稱獲取方法:packageManager.getApplicationLabel(applicationInfo)
使用權限獲取方法:packageManager.getPackageInfo(packageName,PackageManager. GET_PERMISSIONS )
. requestedPermissions
通過ResolveInfo 獲取具體信息方法:
包名獲取方法:resolve.activityInfo.packageName
icon獲取獲取方法:resolve.loadIcon(packageManager)
應用名稱獲取方法:resolve.loadLabel(packageManager).toString() |
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