Open but not restart app via a Custom URL scheme on Android -

i register url scheme android app , configure file following shows, however, restart app every time way. how make open app , not restart it? thanks.

<intent-filter>                 <data android:scheme="myapp"/>                  <action android:name="android.intent.action.view" />                 <category android:name="android.intent.category.default" />                 <category android:name="android.intent.category.browsable" />  </intent-filter>  

try set android:launchmode="singleinstance" parameter activity calling.