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POandroid - How to show dialog after activity finishes
 

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  1. POandroid - How to show dialog after activity finishes
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    <p>Say we have two activities, Activity1 and Activity2.</p> <p>In Activity1's onClick() method, we have a call to start Activity 2 if a certain button is pressed:</p> <pre><code>Intent myIntent = new Intent(Activity1.this, Activity2.class); Activity1.this.startActivity(myIntent); </code></pre> <p>After finish() is called in Activity2, and Activity1 is resumed, I need a dialog to show in Activity1, as soon as it is resumed.</p> <p>Before, I simply called showDialog(id) in the same block of Activity1's onClick() method:</p> <pre><code>public void onClick(View v) { if(v == addHole){ //... Intent myIntent = new Intent(Activity1.this, Activity2.class); Activity1.this.startActivity(myIntent); showDialog(END_DIALOG_ID); } } </code></pre> <p>The issue is, after Activity1 resumes, the dialog corresponding to END_DIALOG_ID is not visible, but the screen is darkened and unresponsive (as if the dialog were present), until the back key is pressed.</p> <p>I have tried putting the showDialog() call in Activity1's onResume() and onRestart() methods, but these both crash the program.</p> <p>I have also tried creating an AsyncTask method in Activity2, with the showDialog() call in its onPostExecute(), but the dialog is not visible in Activity2.</p> <pre><code>private class ShowDialogTask extends AsyncTask&lt;Void, Void, Integer&gt; { /** The system calls this to perform work in a worker thread and * delivers it the parameters given to AsyncTask.execute() */ protected Integer doInBackground(Void... id) { //do nothing return END_DIALOG_ID; } /** The system calls this to perform work in the UI thread and delivers * the result from doInBackground() */ protected void onPostExecute(Integer id) { super.onPostExecute(id); showDialog(id); } } </code></pre> <p>I am now trying to implement this by calling </p> <pre><code>Activity1.this.startActivityForResult(myIntent, END_DIALOG_REQUEST); </code></pre> <p>with corresponding setResult() and onActivityResult() methods from Activity1, but it seems that there should be a better practice for implementing this. All I need is to have a dialog shown upon Activity2 finishing.</p> <p>Thanks for any help you can provide.</p>
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    1. COI was going to suggest startActivityForResult and onActivityResult, but you seem to have discovered it on your own. To me, that's the most straightforward way to achieve what you want.
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      1. POandroid - How to show dialog after activity finishes
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