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I have this piece of code for an Intent:
Intent i = new Intent();
i.setAction(Intent.ACTION_MAIN);
i.addCategory(Intent.CATEGORY_LAUNCHER);
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
i.setComponent(new ComponentName(packToLaunch, nameToLaunch));
startActivity(i);
This basically launches a new activity based on the package name that I pass to it. Sometimes, it takes up to 5 seconds to launch this new Activity. Is there any way to speed this process up? It even takes this long when I have an app that is still running. Please help...
584
To start an activity, use the method startActivity(intent) . This method is defined on the Context object which Activity extends. The following code demonstrates how you can start another activity via an intent. # Start the activity connect to the # specified class Intent i = new Intent(this, ActivityTwo.
Android Intent is the message that is passed between components such as activities, content providers, broadcast receivers, services etc. It is generally used with startActivity() method to invoke activity, broadcast receivers etc.
An intent is to perform an action on the screen. It is mostly used to start activity, send broadcast receiver,start services and send message between two activities. There are two intents available in android as Implicit Intents and Explicit Intents. Here is a sample example to start new activity with old activity.
It looks like Android intentionally delays launch of activity from service right after you press HOME button. (When using BACK button everything is OK.) There was even issue posted https://code.google.com/p/android/issues/detail?id=4536 however it got obsolete.
I tried to search actual implementation of the delay in Android source, but failed. You might want to check the following question as it states pretty same issue and gives some more insights: Starting an activity from a service after HOME button pressed without the 5 seconds delay
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