Databases
StackOverflow2013
Postsdbo
POAndroid multiple instances of Activity
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POAndroid multiple instances of Activity
    primarykey
    data
    text
    <p>I'm having a problem where multiple instances of an activity are present in the backstack.</p> <p>e.g. </p> <p>Stack: A > B > C Press home and use some other apps then relaunch my app Stack: A > B > C > A</p> <p>I would expect my app to resume with activity C, which in most cases it does, but occasionally it resumes with activity A and then when i press back it goes to activity C.</p> <p>I know this problem is not caused by android killing my app as if this was the case it would resume with activity A as the root.</p> <p>I have tried altering the launchMode attribute to singleTask and singleInstance but this results in activity A being resumed as the root, which is not the behaviour that i want, i want it to go back to the previously viewed activity with the backstack intact (I understand this is not always possible if the OS kills the app, which is fine).</p> <p>I dont believe setting the launchMode attribute to singleTop would be useful either as this would prevent A > A situations but not A > B > A or A > B > C > A etc</p> <p>Manifest:</p> <pre><code>&lt;manifest xmlns:android="http://schemas.android.com/apk/res/android" package="" android:versionCode="1" android:versionName="1.0" android:installLocation="auto" &gt; &lt;application android:label="@string/app_name" android:debuggable="false" android:name="" android:icon="@drawable/icon" android:theme="@style/CustomTheme" android:targetSdkVersion="8" android:minSdkVersion="4"&gt; &lt;activity android:name=".activity.A" android:windowSoftInputMode="stateUnchanged|adjustPan" android:screenOrientation="portrait"&gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.MAIN" /&gt; &lt;category android:name="android.intent.category.LAUNCHER" /&gt; &lt;/intent-filter&gt; &lt;/activity&gt; &lt;activity android:name=".activity.B" android:screenOrientation="portrait"/&gt; &lt;activity android:name=".activity.C" android:screenOrientation="portrait" /&gt; &lt;activity android:name=".activity.D" android:screenOrientation="landscape" android:theme="@android:style/Theme.NoTitleBar.Fullscreen" /&gt; &lt;activity android:name=".activity.E" android:theme="@android:style/Theme.NoTitleBar.Fullscreen" /&gt; &lt;service android:name=".service.S" /&gt; &lt;uses-library android:name="com.google.android.maps" /&gt; &lt;/application&gt; &lt;uses-sdk android:minSdkVersion="4" android:targetSdkVersion="8" /&gt; &lt;supports-screens android:largeScreens="false" android:normalScreens="true" android:smallScreens="true" android:anyDensity="true" /&gt; &lt;uses-permission android:name="android.permission.INTERNET" /&gt; &lt;uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /&gt; &lt;uses-permission android:name="android.permission.READ_PHONE_STATE" /&gt; &lt;uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /&gt; &lt;uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /&gt; </code></pre> <p></p> <p>Any advice would be greatly appreciated</p> <p>David</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USuser648462
    1. USuser648462
    plurals
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POAndroid multiple instances of Activity
      1. USKaarel
      1. VTFavorite
    2. VO
      singulars
      1. POAndroid multiple instances of Activity
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POAndroid multiple instances of Activity
      1. This table or related slice is empty.
      1. VTUpMod
    1. COHow do you launch Activity A? Is it the main activity/launcher activity?
      singulars
      1. POAndroid multiple instances of Activity
      1. USwhlk
    2. COYes its the main/launcher activity: `code`<intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter>`code`
      singulars
      1. POAndroid multiple instances of Activity
      1. USuser648462
    3. CODoes any of the other Activities change the default App Stack behaviour?
      singulars
      1. POAndroid multiple instances of Activity
      1. USwhlk
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload