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All About Android-Use Dialog Fragments in Honeycomb-ANDROIDKAWE

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All About Android-Use Dialog Fragments in Honeycomb-ANDROIDKAWE



Using Dialog Fragments in Honeycomb



Honeycomb (Android 3.x) introduced the Fragments to better utilize the UI areas and logic across the multiple activities of the in an application.


The showDialog/dismissDialog methods in Activity are being deprecated to promote the DialogFragments


This post shows a simple DialogFragment example.


The example layout file for the dialog is as follows


<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/edit_name"
    android:layout_width="wrap_content" android:layout_height="wrap_content"
    android:layout_gravity="center" android:orientation="vertical"  >

    <TextView
        android:id="@+id/lbl_your_name" android:text="Your name" 
        android:layout_width="wrap_content" android:layout_height="wrap_content" />
      
    <EditText
        android:id="@+id/txt_your_name"
        android:layout_width="match_parent"  android:layout_height="wrap_content" 
        android:inputType=”text”
        android:imeOptions="actionDone" />
</LinearLayout>

Create the Dialog Class


The dialog class extends the DialogFragment (to support the DialogFragment on other devices I included the DialogFragment from version 4)
import android.support.v4.app.DialogFragment;
// ...
public class SampleDialog extends DialogFragment {

    private EditText mEditText;

    public SampleDialog() {
        // Empty constructor required for DialogFragment
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_edit_name, container);
        mEditText = (EditText) view.findViewById(R.id.txt_your_name);
        getDialog().setTitle("Hello!CreativeAndroidApps");

        return view;
    }
}

Showing the Dialog Box in a Fragment Activity

import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
// ...
public class FragmentDialogDemo extends FragmentActivity implements SampleDialogListener {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        showSampleDialog();
    }

    private void showSampleDialog() {
        FragmentManager fm = getSupportFragmentManager();
        SampleDialog sampleDialog = new SampleDialog();
        sampleDialog.show(fm, "fragment_edit_name");
    }

    @Override
    public void onFinishEditDialog(String inputText) {
        Toast.makeText(this, "Hi, " + inputText, Toast.LENGTH_SHORT).show();
    }
}

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