android 通過 包名啟動Activity

  最近因為項目需要，不讓app在應用列表顯示，只能用自己的啟動器啟動。基本搞定，效果實現了，不過與我的計劃相差挺遠的。    private void RunApp(String packageName) {        PackageInfo pi;        try {            pi = getPackageManager().getPackageInfo(packageName, 0);            Intent resolveIntent = new Intent(Intent.ACTION_MAIN, null);            // resolveIntent.addCategory(Intent.CATEGORY_LAUNCHER);            resolveIntent.setPackage(pi.packageName);            PackageManager pManager = getPackageManager();            List<ResolveInfo> apps = pManager.queryIntentActivities(                    resolveIntent, 0);            ResolveInfo ri = apps.iterator().next();            if (ri != null) {                packageName = ri.activityInfo.packageName;                String className = ri.activityInfo.name;                Intent intent = new Intent(Intent.ACTION_MAIN);                // intent.addCategory(Intent.CATEGORY_LAUNCHER);                ComponentName cn = new ComponentName(packageName, className);                intent.setComponent(cn);                startActivity(intent);            }        } catch (NameNotFoundException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }

網上都有，不說了，目前只有這個能實現我的解決方案。其餘的幾種方法網上都有，不多說了