CODEWITHSUNDEEP
androidandroid-intentparallel-processing
silverFoxA
silverFoxA

Reputation: 4659

How to call multiple Activity through single intent(from widget)?

I'm looking for an answer to the question where on an event i want to open two activity parallely where one of them will be in background and another in foreground but when the foreground activity stops the background activity should fire up.

Is it possible? I would like to know the trick

@downvoters kindly comment if you find it useless

Update

Here is the code that I have tried:

 Intent intent = new Intent(context, ActivityTwo.class);
        Intent home= new Intent(context,MainActivity.class);
        Intent[] intents={intent,home};
        PendingIntent pendingIntent = PendingIntent.getActivities(context,0,intents,0);

But this is opening only the MainActivity class. where i want it to open the Activitytwo class in the foreground and mainActivity in the background.

SOLVED

For those who wish to know how to open multiple activities parallel from widget OK here is my problem

The string array it should be 

Intent[] intents={home,intent};

instead of 

Intent[] intents={intent,home};

Reference

Upvotes: 1

Views: 1307

Answers (3)

Karan
Karan

Reputation: 2130

Its possible with startActivities(Context, Intent[], bundle). Only Argument here to be explained is Intent[], which is array of intents of all the activities you need to fire.

Only one Activity (not sure the first or last intent in array, you can experiment on this) , will stay in foreground and remaining will stay in background. When you press back, they will sequentially keep firing until launcher activity.

From docs:

public static boolean startActivities (Context context, Intent[] intents, Bundle options)

Start a set of activities as a synthesized task stack, if able.

In API level 11 (Android 3.0/Honeycomb) the recommended conventions for app navigation using the back key changed. The back key's behavior is local to the current task and does not capture navigation across different tasks. Navigating across tasks and easily reaching the previous task is accomplished through the "recents" UI, accessible through the software-provided Recents key on the navigation or system bar. On devices with the older hardware button configuration the recents UI can be accessed with a long press on the Home key.

When crossing from one task stack to another post-Android 3.0, the application should synthesize a back stack/history for the new task so that the user may navigate out of the new task and back to the Launcher by repeated presses of the back key. Back key presses should not navigate across task stacks.

startActivities provides a mechanism for constructing a synthetic task stack of multiple activities. If the underlying API is not available on the system this method will return false.

Parameters context Start activities using this activity as the starting context intents Array of intents defining the activities that will be started. The element length-1 will correspond to the top activity on the resulting task stack. options Additional options for how the Activity should be started. See {@link android.content.Context#startActivity(Intent, Bundle) Returns true if the underlying API was available and the call was successful, false otherwise

UPDATE

The element length-1 will correspond to the top activity on the resulting task stack.

so this resolves my confusion too!

UPDATE

Intent intent = new Intent(context, ActivityTwo.class);
        Intent home= new Intent(context,MainActivity.class);
        Intent[] intents={home,intent};
        startActivities(context, intents, null);

Upvotes: 2

antrunner
antrunner

Reputation: 85

1) overwrite onStop() on activity1 and to start activity2.

Upvotes: 0

Karthik Sridharan
Karthik Sridharan

Reputation: 541

Intent intent = new Intent(SplashActivity.this, FirstActivity.class);
startActivityForResult(intent, 10);

@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // TODO Auto-generated method stub
        super.onActivityResult(requestCode, resultCode, data);

        Intent intent = new Intent(SplashActivity.this, SecondActivity.class);
startActivity(intent);
}

in this example second activity will opened after first activity closed.

Upvotes: 0

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