android 通過 包名啓動Activity

  最近因爲項目需要，不讓app在應用列表顯示，只能用自己的啓動器啓動。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