StackOverflow2013

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copied!<p>Declare a global boolean variable <code>chooserIsShowing</code>:</p> <pre><code>boolean chooserIsShowing; </code></pre> <p>Set it to true here:</p> <pre><code>ImageView iv1 = (ImageView) dialog.findViewById(R.id.imgFB); iv1.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { // set the flag chooserIsShowing = true; Uri uri = Uri.parse("https://www.facebook.com/PagesByZ");); Intent intent = new Intent(Intent.ACTION_VIEW, uri); dialog.cancel(); startActivity(intent); } }); </code></pre> <p>Change the overriden <code>onBackPressed()</code> method:</p> <pre><code>@Override public void onBackPressed() { if (!chooserIsShowing) { // do something on back. Intent myIntent = new Intent(getApplicationContext(), MainActivity.class); startActivityForResult(myIntent, 0); finish(); } // remove the flag chooserIsShowing = false; return; } </code></pre> <p><strong>Edit 1:</strong></p> <p>Declare <code>dialog</code> as a global variable:</p> <pre><code>Dialog dialog; </code></pre> <p>Change <code>aboutApp()</code>:</p> <pre><code>public void aboutApp() { dialog = new Dialog(this); .... } </code></pre> <p>Override <code>onKeyDown(int, KeyEvent)</code> method in MainActivity:</p> <pre><code>@Override public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK) { if (dialog != null && dialog.isShowing()) { dialog.dismiss(); return true; } } return super.onKeyDown(keyCode, event); } </code></pre> <p>You can remove <code>chooserIsShowing</code> as its not required.</p> <p><strong>Final Solution:</strong></p> <p>A <code>noHistory</code> flag was defined for this activity in the manifest. Removing that and fixing <code>onBackPressed()</code> method of <code>ShowHelp</code> resolved the issue.</p>

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