Last opened activity

Question

My application on boot opens FirstActivity.

From FirstActivity I can start: SecondActivity, ThirdActivity. When I press the Home button and then return to my app, it always opens FirstActivity, rather than opening the last activity (after returning start FirstActivity with onCreate()).

How I can restore application state on last activity?

In code I don't start FirstActivity.

My manifest:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.bvblogic.nimbusnote"
    android:versionCode="1"
    android:versionName="1.0">


    <uses-sdk
        android:minSdkVersion="14"
        android:targetSdkVersion="17.0.0"
        android:maxSdkVersion="19" />
    <permission
        android:name="com.bvblogic.nimbusnote.activities.permission.MAPS_RECEIVE"
        android:protectionLevel="signature" />

    <uses-permission android:name="com.bvblogic.nimbusnote.activities.permission.MAPS_RECEIVE" />
    <uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.GET_TASKS"/>
    <!--Permission for create shortcut on Home Screen-->
    <uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT"></uses-permission>


    <uses-feature
        android:glEsVersion="0x00020000"
        android:required="true" />

    <application
        android:largeHeap="true"
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:theme="@style/Theme.NimbusNote.Light"
        android:hardwareAccelerated="true"
        android:label="@string/app_name"
        android:name=".application.App">
        <activity

            android:name=".activities.StartActivity"
            android:theme="@style/Theme.Sherlock.Light.NoActionBar"
            android:windowSoftInputMode="stateHidden"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="com.bvblogic.nimbusnote.activities.startactivity" />
                <category android:name="android.intent.category.DEFAULT" />

            </intent-filter>
        </activity>

        <activity
            android:name=".activities.FolderListActivity"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="com.bvblogic.nimbusnote.activities.folderlistactivity" />
                <category android:name="android.intent.category.DEFAULT" />

            </intent-filter>

        </activity>
        <activity
            android:name=".activities.SettingsActivity"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="com.bvblogic.nimbusnote.activities.settingsactivity" />
                <category android:name="android.intent.category.DEFAULT" />

            </intent-filter>
        </activity>
        <activity
            android:name=".activities.ExplorerActivity"
            android:label="@string/app_name"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="com.bvblogic.nimbusnote.activities.exploreractivity" />
                <category android:name="android.intent.category.DEFAULT" />

            </intent-filter>
            <intent-filter>
                <action android:name="android.intent.action.SEARCH" />
            </intent-filter>

            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".activities.PreviewNoteActivity"
            android:windowSoftInputMode="adjustPan"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="com.bvblogic.nimbusnote.activities.previewnoteactivity" />
                <category android:name="android.intent.category.DEFAULT" />

            </intent-filter>
            <intent-filter>
                <action android:name="com.bvblogic.nimbusnote.VIEW_NOTE"></action>

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>

        <activity
            android:name=".activities.EditNoteActivity"
            android:windowSoftInputMode="adjustResize"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="com.bvblogic.nimbusnote.activities.editnoteactivity" />
                <category android:name="android.intent.category.DEFAULT" />

            </intent-filter>
        </activity>
        <activity
            android:name=".activities.NoteInfoActivity"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="com.bvblogic.nimbusnote.activities.noteinfoactivity" />
                <category android:name="android.intent.category.DEFAULT" />

            </intent-filter>
        </activity>
        <activity
            android:name=".activities.ChangePlaceMapActivity"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="com.bvblogic.nimbusnote.activities.changeplacemapactivity" />
                <category android:name="android.intent.category.DEFAULT" />

            </intent-filter>
        </activity>
        <activity
            android:name=".activities.PlacesActivity"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="com.bvblogic.nimbusnote.activities.placesactivity" />
                <category android:name="android.intent.category.DEFAULT" />

            </intent-filter>
        </activity>
        <activity
            android:name=".activities.ChangeTagsActivity"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="com.bvblogic.nimbusnote.activities.changetagsactivity" />
                <category android:name="android.intent.category.DEFAULT" />

            </intent-filter>
        </activity>

        <activity
            android:name=".activities.TagsActivity"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="com.bvblogic.nimbusnote.activities.tagsactivity" />
                <category android:name="android.intent.category.DEFAULT" />

            </intent-filter>
            <intent-filter>
                <action android:name="android.intent.action.SEARCH" />
            </intent-filter>

            <meta-data
                android:name="android.app.searchable"
                android:resource="@xml/searchable" />
        </activity>
        <activity
            android:name=".activities.PainterActivity"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="com.bvblogic.nimbusnote.activities.painteractivity" />
                <category android:name="android.intent.category.DEFAULT" />

            </intent-filter>
        </activity>

        <activity
            android:name=".activities.AccountSettingsActivity"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="com.bvblogic.nimbusnote.activities.accountsettingsactivity" />
                <category android:name="android.intent.category.DEFAULT" />

            </intent-filter>
        </activity>

        <activity
            android:name=".activities.SyncSettingsActivity"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="com.bvblogic.nimbusnote.activities.syncsettingsactivity" />
                <category android:name="android.intent.category.DEFAULT" />

            </intent-filter>
        </activity>
        <activity
            android:name=".activities.RecentNotesActivity"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="com.bvblogic.nimbusnote.activities.recentnotesactivity" />
                <category android:name="android.intent.category.DEFAULT" />

            </intent-filter>
        </activity>

        <service android:name=".services.FullSyncService" />
        <service android:name=".services.PrioritySyncService" />

    </application>


</manifest>

UPDATE: Than I'm start PreviewNoteActivity from ExplorerActivity and press Home button and open application from shortcut I return to ExplorerActivity. But after press Back, activity is closed and show PreviewNoteActivty.

Stack:

• ExplorerActivity
• PreviewNoteActivity

After press Home and return to app:

• ExplorerActivity
• PreviewNoteActivity
• ExplorerActivity

but I don't start ExplorerActivity after app is restarted. If after app started and i close app with Back button problem is resolved. But after compile and first start problem is actually

UPDATE 2: Back button listener

  @Override
        public void onBackPressed() {
            if (mDrawerLayout.isDrawerVisible(mDrawerLeft)) {
                closeNavigationDrawer();

            } else if (!notesFragment.searchView.isIconified()) {
                notesFragment.searchView.setQuery("", true);
                notesFragment.searchView.setIconified(true);
                notesFragment.searchView.clearFocus();
            } else if (!mDrawerLayout.isDrawerVisible(mDrawerLeft)) {

                ActivityManager actM = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
                List<ActivityManager.RunningTaskInfo> listm = actM.getRunningTasks(1);
                int iNumActivity = listm.get(0).numActivities;
                if (iNumActivity > 1) {
                    finish();
                } else {
 //close activity
                    closeAction();
                }
            }
        }

private void closeAction() {
        if (System.currentTimeMillis() - lastTimeBackPressed <= 2000) {
            App.isExplorerActivityStarted = false;
            finish();
        } else {
            lastTimeBackPressed = System.currentTimeMillis();
            Toast.makeText(getApplicationContext(), "Press again for exit", Toast.LENGTH_SHORT).show();
        }
    }

Update3: The problem is urgent if install application from apk file (from sdcard). If install from IDE (Android Studio) problem there is not.

Answer 1

I found solution: This is Android System bug. For resolve this problem i put in root Activity (first started) in onCreate() method next code block:

if (!isTaskRoot()) {
            Intent intent = getIntent();
            String action = intent.getAction();
            if (intent.hasCategory(Intent.CATEGORY_LAUNCHER) && action != null && action.equals(Intent.ACTION_MAIN)) {
                finish();
                return;
            }
        }