Intent LaunchIntent = getPackageManager().getLaunchIntentForPackage("com.joyodream.jiji");

                startActivity(LaunchIntent);

Intent intent = new Intent();

                intent.setAction("com.joyodream.jiji.main");

                MainActivity.this.startActivity(intent);

<intent-filter>

                <action android:name="com.joyodream.jiji.main" />

                <category android:name="android.intent.category.DEFAULT" />

            </intent-filter>

Intent intent = new Intent();

                intent.setData(Uri.parse("joyodream://......"));

                startActivity(intent);

<intent-filter>

                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />

                <data android:scheme="joyodream" android:ssp="jiji" />

            </intent-filter>