Android Open Source - AirPush-Detector Native Detection Dialog Fragment

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Back to project page AirPush-Detector.

License

The source code is released under:

Apache License

Java Source Code

package com.brosmike.airpushdetector;
/* w  ww.ja v a 2  s  .  c  o m*/
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.Fragment;

/**
 * Fragment owns the lifetime of the dialog box that informs users about the Jelly Bean+
 * built-in functionality to identify the source of a notification
 * 
 * Fragment is expected to be retained on rotation, unlike owning fragment
 * 
 * Target fragments are required to implement NativeDetectionDialogFragment.Callbacks
 */
public class NativeDetectionDialogFragment extends DialogFragment {
  public static final String TAG = "NativeDetectionDialogFragment";
  public static final int TASK_REQUEST_CODE = 1; // should be distinct from DetectorTaskFragment's

  public static interface Callbacks {
    public void onSelection(boolean doDetection);
  }

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // Stop the dialog from being destroyed on orientation change
    setRetainInstance(true);
  }

  /**
   * This is to work around what is apparently a bug. If you don't have it
   * here the dialog will be dismissed on rotation, so tell it not to dismiss.
   */
  @Override
  public void onDestroyView() {
    if (getDialog() != null && getRetainInstance()) {
      getDialog().setDismissMessage(null);
    }
    
    super.onDestroyView();
  }

  /**
   * Called whenever a button is selected from the dialog
   */
  private void onSelection(boolean stillNeedsDetection) {
    Callbacks host;
        try {
          Fragment target = getTargetFragment();
          if (target == null) {
            // Target was destroyed before this dialog. Just dismiss the result.
            return;
          }
            host = (Callbacks) target;
        } catch (ClassCastException e) {
            String name = getActivity().getClass().getName();
            throw new IllegalStateException("Target fragment " +  name + " doesn't implement NativeDetectionDialogFragment.Callbacks interface");
        }
        host.onSelection(stillNeedsDetection);
  }
  
  @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        DialogInterface.OnClickListener clickListener = new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                // The "positive" result for us is that the user used the native detection facility
                boolean stillNeedsDetection = (which != DialogInterface.BUTTON_POSITIVE);
                onSelection(stillNeedsDetection);
                
            }
        };

        return new AlertDialog.Builder(getActivity())
          .setTitle(R.string.native_detection_dialog_title)
          .setMessage(R.string.native_detection_dialog_message)
            .setPositiveButton(R.string.native_detection_dialog_button_use_native, clickListener)
            .setNegativeButton(R.string.native_detection_dialog_button_use_app, clickListener)
            .create();
    }
}

Java Source Code List

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