擷取所有應用資訊，判斷系統應用或第三方應用，監聽應用安裝和卸載

標籤：android   系統應用   第三方應用   所有應用   packageinfo   

擷取所有應用及相關資訊

方法1：ResolveInfo

擷取全部應用：PackageManager packageManager = getPackageManager();Intent mIntent = new Intent(Intent.ACTION_MAIN, null);mIntent.addCategory(Intent.CATEGORY_LAUNCHER);List<ResolveInfo> listAllApps = packageManager.queryIntentActivities(mIntent, 0);判斷是否系統應用：ResolveInfo appInfo = listAllApps.get(position);String pkgName = appInfo.activityInfo.packageName;//擷取包名//根據包名擷取PackageInfo mPackageInfo;（需要處理異常）mPackageInfo = mContext.getPackageManager().getPackageInfo(pkgName, 0);if ((mPackageInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) <= 0) {    //第三方應用} else {    //系統應用}擷取相關資訊：ResolveInfo mResolveInfo ;擷取包名： mResolveInfo.activityInfo.packageName;擷取icon： mResolveInfo.loadIcon(packageManager);擷取應用程式名稱： mResolveInfo.loadLabel(packageManager).toString();

方法2：PackageInfo

擷取全部應用：PackageManager packageManager = this.getPackageManager(); List<PackageInfo> packageInfoList = packageInfoList .getInstalledPackages(0);  判斷是否系統應用： List<PackageInfo> apps = new ArrayList<PackageInfo>(); for (int i = 0; i < packageInfoList.size(); i++) {            PackageInfo pak = (PackageInfo)packageInfoList.get(i);            //判斷是否為系統預裝的應用            if ((pak.applicationInfo.flags & pak.applicationInfo.FLAG_SYSTEM) <= 0) {                // 第三方應用                apps.add(pak);            } else{//系統應用}        }擷取相關資訊：PackageInfo mPackageInfo;擷取包名： mPackageInfo.packageName擷取icon： mPackageInfo.getApplicationIcon(applicationInfo);擷取應用程式名稱： mPackageInfo.getApplicationLabel(applicationInfo);擷取使用許可權：mPackageInfo.getPackageInfo(packageName,PackageManager.GET_PERMISSIONS).requestedPermissions;

監聽應用的安裝和卸載：

//////////////註冊廣播，監聽安裝和卸載public void onReceive(Context context, Intent intent) {if (intent.getAction().equals("android.intent.action.PACKAGE_ADDED")) {//擷取安裝應用的包名String packageName = intent.getDataString();} else if (intent.getAction().equals("android.intent.action.PACKAGE_REMOVED")) {//擷取卸載應用的包名String packageName = intent.getDataString();}}