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PODialogFragment doesn't show up
 

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    <p>At the last, I found what the problem is...</p> <p>If you have a function like this:</p> <pre><code>public void test() { DialogFragment dlg = new LoginDialog(); dlg.show(getSupportFragmentManager(), "login"); } </code></pre> <p>The dialog will only appear when test() finished, I'm not sure if this is the only way Android dialog works but I'll definitely read more on this...</p> <hr> <p><strong>Original Question:</strong></p> <p>I'm new to android world, can somebody shed some light?</p> <p>dlg.show() executed without exception but just nothing happens, what should I do to know what's wrong? The project is using Android 2.2's API.</p> <pre><code>public class MainActivity extends FragmentActivity { ... DialogFragment dlg = new LoginDialog(); dlg.show(getSupportFragmentManager(), "login"); } </code></pre> <p>The dialog layout:</p> <pre><code>&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt; &lt;EditText android:id="@+id/username" android:inputType="textEmailAddress" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="16dp" android:layout_marginLeft="4dp" android:layout_marginRight="4dp" android:layout_marginBottom="4dp" android:hint="username" /&gt; &lt;EditText android:id="@+id/password" android:inputType="textPassword" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="4dp" android:layout_marginLeft="4dp" android:layout_marginRight="4dp" android:layout_marginBottom="16dp" android:hint="password"/&gt; &lt;/LinearLayout&gt; </code></pre> <p>The dialog class:</p> <pre><code>import android.app.AlertDialog; import android.app.Dialog; import android.content.DialogInterface; import android.os.Bundle; import android.support.v4.app.DialogFragment; import android.view.LayoutInflater; public class LoginDialog extends DialogFragment { @Override public Dialog onCreateDialog(Bundle savedInstanceState) { AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); // Get the layout inflater LayoutInflater inflater = getActivity().getLayoutInflater(); // Inflate and set the layout for the dialog // Pass null as the parent view because its going in the dialog layout builder.setView(inflater.inflate(R.layout.login_dialog, null)) // Add action buttons .setPositiveButton("Sign In", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { // sign in the user ... } }) .setNegativeButton("Cancel", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { // do something } }); return builder.create(); } } </code></pre>
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    1. COAre you sure the first bit of your code is being called, try putting `finish()` right before you create your dialog. If your app shuts down, then there is something wrong with your dialog, but if it doesn't close then it means that your code isn't reaching the place where it creates a dialog
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    2. COYes it was called, because I set a breakpoint there and it was triggered.
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    3. CO@agou have you tried to remove the custom view and just set a text content? Does it work if you do so? I'm not so sure the parent `null` is correct, maybe you have to find the view with id `R.id.layout_root` and give it as parent to your `inflate(..)`
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