How to startActivity after clearing app data?

Question

When "Logout" button clicked, app is clearing all data.

private void deleteAppData() {
    try {
        // clearing app data
        String packageName = context.getPackageName();
        Runtime runtime = Runtime.getRuntime();
        runtime.exec("pm clear " + packageName);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

How to set some listener for runtime.exec finish? When execution finished I would like to open Splash activity. Now app is closing only.

Question: how to start activity after runtime.exec completed?

yeah, how to identify I finished clearing? This is what I am trying to achieve — Joe Rakhimov, Jun 29 '17 at 12:01
Check this - [how can check Runtime.exec(cmd) is completed or not](https://stackoverflow.com/a/31020807/6244429) — Vishal Yadav, Jun 29 '17 at 12:11

score 0 · Answer 1 · edited Jun 29 '17 at 12:10

0

I think you should do this in OnDestroy or onStop() of the logout activity because the startActivity(i) will be called after runtime clears the data and then the application will transition into the other activity.

edited Jun 29 '17 at 12:10

Sanoop Surendran

3,484
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answered Jun 29 '17 at 11:59

Wajdan Ali

179
13

score 0 · Answer 2 · answered Jun 29 '17 at 11:59

0

Immediately after you start a new activity, using startActivity, make sure you call finish() so that the current activity is not stacked behind the new one.

 Intent mIntent = new Intent(mContext,MainActivity.class);
finishAffinity();
startActivity(mIntent);

answered Jun 29 '17 at 11:59

Sunisha Guptan

1,555
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Question is about how to identify when runtime.exec finishes – Joe Rakhimov Jun 29 '17 at 12:02
Normally will clear the prefrence value after clearing the prefrence value it will redirect to the particular activiy the same way he can do.Also you have mentioned "When execution finished I would like to open Splash activity. Now app is closing only."For that am answering – Sunisha Guptan Jun 29 '17 at 12:04
In addition to preferences, I have SQLite database and Internal storage files . That's why I want to delete all data – Joe Rakhimov Jun 29 '17 at 12:05
Try to read this links https://stackoverflow.com/questions/31020705/how-can-check-runtime-execcmd-is-completed-or-not, https://stackoverflow.com/questions/6873830/in-java-determine-if-a-process-created-using-runtime-environment-has-finished-ex – Sunisha Guptan Jun 29 '17 at 12:06

How to startActivity after clearing app data?

2 Answers2