Android - how to unregister a receiver created in the manifest?

Question

I know about using registerReceiver and unregisterReceiver in Java code for dealing with receivers, but let's say I have the following in my manifest:

    <receiver android:name=".headsetHook">
        <intent-filter android:priority="99999999999">
            <action android:name="android.intent.action.ACTION_HEADSET_PLUG" />
        </intent-filter>
    </receiver>

Is there a way I could unregister this somewhere in Java code? Could I give it an id attribute or something and then get it and unregister it? I ask because I want my app to do something only on the first time this action happens, then unregister it and re-register it later in Java.

Hope I made that clear, thanks for any help.

Varun · Accepted Answer · 2012-12-17T19:18:43.750

94

You can use the PackageManager to enable/disable a BroadcastReceiver in declared in the Manifest. The Broadcast Receiver will get fired only when it is enabled.

Use this to create a Component

ComponentName component = new ComponentName(context, MyReceiver.class);

Check if the Component is enabled or disabled

int status = context.getPackageManager().getComponentEnabledSetting(component);
if(status == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
    Log.d("receiver is enabled");
} else if(status == PackageManager.COMPONENT_ENABLED_STATE_DISABLED) {
    Log.d("receiver is disabled");
}

Enable/Disable the component(Broadcast Receiver in your case)

//Disable
context.getPackageManager().setComponentEnabledSetting(component, PackageManager.COMPONENT_ENABLED_STATE_DISABLED , PackageManager.DONT_KILL_APP);
//Enable
context.getPackageManager().setComponentEnabledSetting(component, PackageManager.COMPONENT_ENABLED_STATE_ENABLED , PackageManager.DONT_KILL_APP);

edited Dec 17 '12 at 19:18

answered Jun 30 '11 at 02:26

Varun

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1

oh damn you're a boss. Let me try this out, looks promising. – JDS Jun 30 '11 at 02:48
4

Just note: you may get also status COMPONENT_ENABLED_STATE_DEFAULT – Pointer Null Feb 24 '12 at 22:23
Varun, thank you for pointing this out (and YoungMoney, thank you for asking). This is just what I needed. – class stacker Dec 17 '12 at 15:03
does COMPONENT_ENABLED_STATE_DEFAULT always mean that it's enabled? – android developer May 08 '13 at 07:47
I think it gives the default enabled state - for instance if you have `enabled=false` in your manifest, `COMPONENT_ENABLED_STATE_DEFAULT` will be equal to `COMPONENT_ENABLED_STATE_DISABLED`. Have not tried it though. – Varun May 08 '13 at 18:54

score 2 · Answer 2 · answered Nov 30 '16 at 17:13

Based on Varun's answer I've created this utilitarian method

private void unregisterReceiverFromManifest(Class<? extends BroadcastReceiver> clazz, final Context context) {
    final ComponentName component = new ComponentName(context, clazz);
    final int status = context.getPackageManager().getComponentEnabledSetting(component);
    if(status == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
        context.getPackageManager()
                 .setComponentEnabledSetting(component, PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
                     PackageManager.DONT_KILL_APP);
        }
    }

hi! can you solve this question? https://stackoverflow.com/q/63350856/5359340 — FGH, Aug 11 '20 at 07:00

Android - how to unregister a receiver created in the manifest?

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