Android Open Source - PactrackDroid Refresh Dialog

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Back to project page PactrackDroid.

License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Copyright (C) 2014 Joakim Andersson/*www  .  j  a v  a  2  s  .co m*/
 * Copyright (C) 2014 blunden
 * 
 * This file is part of PactrackDroid, an Android application to keep
 * track of parcels sent with the Swedish mail service (Posten).
 * 
 * PactrackDroid is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * PactrackDroid is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

package nu.firetech.android.pactrack.frontend;

import nu.firetech.android.pactrack.R;
import nu.firetech.android.pactrack.backend.ParcelDbAdapter;
import android.app.Activity;
import android.app.Dialog;
import android.app.DialogFragment;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;

public class RefreshDialog extends DialogFragment {
  private ProgressHandler mHandler;

  public static Handler show(Activity context, int maxValue) {
    RefreshDialog d = new RefreshDialog();
    d.initValues(maxValue);
    d.show(context.getFragmentManager(), RefreshDialog.class.getName());
    return d.mHandler;
  }

  public void initValues(int maxValue) {
    mHandler = new ProgressHandler(this, maxValue);
    setRetainInstance(true);
  }

  @Override
  public Dialog onCreateDialog(Bundle savedInstanceState) {
    if (mHandler == null) {
      throw new IllegalStateException("RefreshDialog.initValues() has not been called.");
    }

    ProgressDialog dialog = new ProgressDialog(getActivity());
    dialog.setMax(mHandler.getMaxValue());
    dialog.setTitle(R.string.refreshing);
    dialog.setMessage(getString(R.string.refreshing));
    if (dialog.getMax() > 1) {
      dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
    } else {
      dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
    }

    return dialog;
  }
  
  @Override
  public void onStart() {
    super.onStart();
    // If we set the progress before the dialog is showing, it won't apply.
    ((ProgressDialog)getDialog()).setProgress(mHandler.getValue());
  }
  
  @Override
  public void onDestroyView() {
    if (getDialog() != null && getRetainInstance())
      getDialog().setDismissMessage(null);
    super.onDestroyView();
  }

  private static class ProgressHandler extends Handler {
    RefreshDialog mParent;
    int mMaxValue;
    int mValue;

    public ProgressHandler(RefreshDialog parent, int maxValue) {
      mParent = parent;
      mMaxValue = maxValue;
      mValue = 0;
    }

    public int getValue() {
      return mValue;
    }

    public int getMaxValue() {
      return mMaxValue;
    }

    @Override
    public void handleMessage(Message m) {
      mValue = m.what;
      if (m.what == mMaxValue) {
        mParent.setRetainInstance(false);
        mParent.dismiss();
      } else if (mParent.getDialog() != null) {
        ProgressDialog dialog = (ProgressDialog)mParent.getDialog();
        dialog.setProgress(m.what);
        if (m.obj instanceof Bundle) {
          Bundle bundle = (Bundle)m.obj;
          String parcel = bundle.getString(ParcelDbAdapter.KEY_NAME);
          if (parcel == null) {
            parcel = bundle.getString(ParcelDbAdapter.KEY_PARCEL);
          }
          dialog.setMessage(parcel);
        }
      }
    }
  };
}

Java Source Code List

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