You need to set the Activity
's launchMode
to singleTask
. You can do this by adding the activity attribute in your Android Manifest:
android:launchMode="singleTask"
See the documentation for more details.
Pergunta
I have an application that is launched via an intent-filter
action. The problem is that every time the event/ action occurs, Android displays a dialog asking to launch the app even if it is already started.
I want the behavior to be as follows:
Is there a way to achieve both of these goals? I am targeting Android 4.0.
edit
Here is my intent filter:
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED" />
</intent-filter>
<intent-filter>
<action android:name="android.hardware.usb.action.USB_DEVICE_DETACHED" />
</intent-filter>
<meta-data
android:name="android.hardware.usb.action.USB_DEVICE_DETACHED"
android:resource="@xml/device_filter" />
Solução
You need to set the Activity
's launchMode
to singleTask
. You can do this by adding the activity attribute in your Android Manifest:
android:launchMode="singleTask"
See the documentation for more details.
Outras dicas
Use flags when asking the user to start the application. Set the flag when this is first enabled and each time check if this flag is ticked. For example if (flag == 1) askusertostart() else continue;
if this is clear to you?