无论我做什么，都无法阻止我的应用程序返回到登录活动

Question

This is giving me a hard time, no matter what i do pressing back button return the application to login activity.

These are the methods is I've tried so far:

1: I tried to set intent flags to clear top, erase history and also exclude the activity from recents.

Intent intent = new Intent(MainActivity.this, NoticeAndStuff.class);
intent.addFlags(intent.FLAG_ACTIVITY_NO_HISTORY | intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS | intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);

2: I also tried using finish() after the startActivity() call.

Intent intent = new Intent(MainActivity.this, NoticeAndStuff.class);
startActivity(intent);
finish();

Needless to say I also tried both of them at the same time too, and also tried setting the noHistory flag in manifest file just to be sure. I tried overriding the back button too, yet the back button returns to the login activity.

This is my manifest file:

<?xml version="1.0" encoding="utf-8"?>

<uses-permission android:name="android.permission.INTERNET" />

<application
    android:name=".app.AppController"
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:supportsRtl="true"
    android:theme="@style/AppTheme" >
    <activity
        android:name=".SplashScreen"
        android:label="@string/app_name"
        android:noHistory="true"
        android:theme="@style/AppTheme.NoActionBar" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity
        android:name=".MainActivity"
        android:noHistory="true"
        android:label="@string/title_activity_main"
        android:theme="@style/AppTheme.NoActionBar" >
    </activity>
    <activity
        android:name=".NoticeAndStuff"
        android:label="@string/title_activity_notice_and_stuff"
        android:theme="@style/AppTheme.NoActionBar" >
    </activity>
    <activity
        android:name=".Subscriptions"
        android:label="@string/title_activity_subscriptions"
        android:theme="@style/AppTheme.NoActionBar" >
    </activity>
    <activity
        android:name=".Details"
        android:label="@string/title_activity_details"
        android:theme="@style/AppTheme.NoActionBar" >
    </activity>
    <activity
        android:name=".Abouts"
        android:label="@string/title_activity_abouts"
        android:theme="@style/AppTheme.NoActionBar" >
    </activity>
    <activity
        android:name=".FeedBack"
        android:label="@string/title_activity_feed_back"
        android:theme="@style/AppTheme.NoActionBar" >
    </activity>
</application>

Answer 1

In a worst case scenario try

ActivityCompat.finishAffinity();

This will destroy the current activity without any trace, no intents can passed to other activity if this is done.

Happy Coding.

Answer 2

Try This.

Intent intent =new Intent(CurrentActivity.this,NextActivity.class);
intent.setFlags(android.content.Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
finish();

Answer 3

I am assuming your manifest should have details like his

    <activity
                android:name=".MainActivity"
                android:screenOrientation="portrait"
                android:theme="@style/AppTheme.SplashScreen">
                <intent-filter>
                    <action android:name="android.intent.action.MAIN" />

                    <category android:name="android.intent.category.LAUNCHER" />
                </intent-filter>
            </activity>
<activity
            android:name=".NoticeAndStuff"
            android:label="@string/title_activity_name"
            android:theme="@style/AppTheme.NoActionBar" />

And MainActivity should be class Extending Activity class or AppCompatActivity
And the navigation to next screen will be

void moveToNextScreen(){
        startActivity(new Intent(getApplicationContext(), NoticeAndStuff.class));
        this.finish();
    }

If then make sure your build files are cleaned and rebuild every time you make a code change. In Android studio it will be "Drive Path\\AppName\\app\\build" You can manually delete and try clean build again. Apart from these there may not be any errors.

Edit: If all these are not working , then put this on your backbutton press

finishAffinity();

Check this for deails: API Details

Finish this activity as well as all activities immediately below it in the current task that have the same affinity. This is typically used when an application can be launched on to another task (such as from an ACTION_VIEW of a content type it understands) and the user has used the up navigation to switch out of the current task and in to its own task. In this case, if the user has navigated down into any other activities of the second application, all of those should be removed from the original task as part of the task switch.

Note that this finish does not allow you to deliver results to the previous activity, and an exception will be thrown if you are trying to do so.

Answer 4

Try this
  Intent ii2 = new Intent(getApplicationContext(), FacebookSharing.class);
                ii2.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                startActivity(ii2);
                finish();

Answer 5

I think that all thing is good, just try this which you have already done.

Intent intent = new Intent(MainActivity.this, NoticeAndStuff.class);
startActivity(intent);
finish();

but I think you need to uninstall the app from your device. Then before building and running again on the device clean and rebuild the project. Then Run the app and then let us know if it is the same result.

Answer 6

It is little bit tricky, Try this.

Using FLAG_ACTIVITY_NEW_TASK and FLAG_ACTIVITY_CLEAR_TASK will do the trick

Intent next = new Intent(CurrentActivity.this, LoginActivity.class);
        // will close all the running activiities and goes to Login Activity
next.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
                | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(next);
finish();

Happy Coding..!!

Answer 7

Try adding android:noHistory="true" where your login activity is declared in manifest.xml

If that is not working, try

Intent i=new Intent(MainActivity.this, NoticeAndStuff.class);
i.setFlags(android.content.Intent.FLAG_ACTIVITY_CLEAR_TOP);
finish();
startActivity(i);