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POhow to launch Activity with FLAG_REORDER_TO_FRONT and FLAG_CLEAR_TOP
 

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  1. POhow to launch Activity with FLAG_REORDER_TO_FRONT and FLAG_CLEAR_TOP
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    <p>I have four activity in my tasks A,B,C,D. </p> <p>Activities are launched in order A->B->C->D. </p> <p>Here, </p> <ol> <li><p>I want to go back to the activity A from D and resume that activity .<br> So that i used the intent flag </p> <pre><code>i.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT); </code></pre></li> <li><p>Activities B,C,D instance are is no longer needed after the stmt 1.<br> i go for the flag to accomplish this, </p> <pre><code>Intent.FLAG_ACTIVITY_CLEAR_TOP </code></pre></li> </ol> <p>In my appp using the above 1 and 2 i try to achieve like<br> - go back and resume the acivity A and remove the other activities from the stack<br> so i tried like. </p> <pre><code> i.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT); i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); //vise versa </code></pre> <p>using the above code both flags are appened here using this reference<br> (<a href="https://stackoverflow.com/questions/6664189/androidwhat-is-difference-between-setflags-and-addflags-for-intent">Android:What is difference between setFlags and addFlags for intent</a>)</p> <p>I am not able to achieve these task combined( resume the activity A and clear other). </p> <p>actual calling scenario is </p> <pre><code>when i use the CLEAR flag the call is like D-&gt;oncreate(A) and clear BCD when i use the REORDER flag the call is like D-&gt;onrestart(A). </code></pre> <p>So how can i combine this flags to get the combined action to resume A and clear other or is there any other way to do this. </p> <p>this is my manifest</p> <pre><code>&lt;manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.tpv.vptest" android:versionCode="1" android:versionName="1.0" &gt; &lt;uses-sdk android:minSdkVersion="8" android:targetSdkVersion="15" /&gt; &lt;application android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" &gt; &lt;activity android:name=".NeverStopActivity" android:label="@string/title_activity_main" android:launchMode="singleInstance"&gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.MAIN" /&gt; </code></pre> <p>activity 1->2</p> <pre><code>Intent i = new Intent(getApplicationContext(), TopMenuBar.class); startActivity(i); </code></pre> <ul> <li>You can perform this action again in 1 seconds - retry / cancel</li> </ul> <p>activity 2->3</p> <pre><code>Intent i = new Intent(getApplicationContext(), Activity3.class); startActivity(i); </code></pre> <p>and 3-> 1</p> <pre><code>Intent i = new Intent(getApplicationContext(), NeverStopActivity.class); i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); i.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP); startActivity(i); </code></pre>
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