TaskFeedback.java

package com.ch_linghu.fanfoudroid.task;

import android.app.ProgressDialog;
import android.content.Context;
import android.util.Log;
import android.widget.Toast;

import com.ch_linghu.fanfoudroid.ui.base.WithHeaderActivity;

public abstract class TaskFeedback {
	private static TaskFeedback _instance = null;

	public static final int DIALOG_MODE = 0x01;
	public static final int REFRESH_MODE = 0x02;
	public static final int PROGRESS_MODE = 0x03;

	public static TaskFeedback getInstance(int type, Context context) {
		switch (type) {
		case DIALOG_MODE:
			_instance = DialogFeedback.getInstance();
			break;
		case REFRESH_MODE:
			_instance = RefreshAnimationFeedback.getInstance();
			break;
		case PROGRESS_MODE:
			_instance = ProgressBarFeedback.getInstance();
		}
		_instance.setContext(context);
		return _instance;
	}

	protected Context _context;

	protected void setContext(Context context) {
		_context = context;
	}

	public Context getContent() {
		return _context;
	}

	// default do nothing
	public void start(String prompt) {
	};

	public void cancel() {
	};

	public void success(String prompt) {
	};

	public void success() {
		success("");
	};

	public void failed(String prompt) {
	};

	public void showProgress(int progress) {
	};
}

/**
 *
 */
class DialogFeedback extends TaskFeedback {
	private static DialogFeedback _instance = null;

	public static DialogFeedback getInstance() {
		if (_instance == null) {
			_instance = new DialogFeedback();
		}
		return _instance;
	}

	private ProgressDialog _dialog = null;

	@Override
	public void cancel() {
		if (_dialog != null) {
			_dialog.dismiss();
		}
	}

	@Override
	public void failed(String prompt) {
		if (_dialog != null) {
			_dialog.dismiss();
		}

		Toast toast = Toast.makeText(_context, prompt, Toast.LENGTH_LONG);
		toast.show();
	}

	@Override
	public void start(String prompt) {
		_dialog = ProgressDialog.show(_context, "", prompt, true);
		_dialog.setCancelable(true);
	}

	@Override
	public void success(String prompt) {
		if (_dialog != null) {
			_dialog.dismiss();
		}
	}
}

/**
 *
 */
class RefreshAnimationFeedback extends TaskFeedback {
	private static RefreshAnimationFeedback _instance = null;

	public static RefreshAnimationFeedback getInstance() {
		if (_instance == null) {
			_instance = new RefreshAnimationFeedback();
		}
		return _instance;
	}

	private WithHeaderActivity _activity;

	@Override
	protected void setContext(Context context) {
		super.setContext(context);
		_activity = (WithHeaderActivity) context;
	}

	@Override
	public void cancel() {
		_activity.setRefreshAnimation(false);
	}

	@Override
	public void failed(String prompt) {
		_activity.setRefreshAnimation(false);

		Toast toast = Toast.makeText(_context, prompt, Toast.LENGTH_LONG);
		toast.show();
	}

	@Override
	public void start(String prompt) {
		_activity.setRefreshAnimation(true);
	}

	@Override
	public void success(String prompt) {
		_activity.setRefreshAnimation(false);
	}

}

/**
 *
 */
class ProgressBarFeedback extends TaskFeedback {

	private static ProgressBarFeedback _instance = null;

	public static ProgressBarFeedback getInstance() {
		if (_instance == null) {
			_instance = new ProgressBarFeedback();
		}
		return _instance;
	}

	private WithHeaderActivity _activity;

	@Override
	protected void setContext(Context context) {
		super.setContext(context);
		_activity = (WithHeaderActivity) context;
	}

	@Override
	public void cancel() {
		_activity.setProgress(0);
	}

	@Override
	public void failed(String prompt) {
		cancel();

		Toast toast = Toast.makeText(_context, prompt, Toast.LENGTH_LONG);
		toast.show();
	}

	@Override
	public void start(String prompt) {
		_activity.setProgress(10);
	}

	@Override
	public void success(String prompt) {
		Log.d("LDS", "ON SUCCESS");
		_activity.setProgress(0);
	}

	@Override
	public void showProgress(int progress) {
		_activity.setProgress(progress);
	}

	// mProgress.setIndeterminate(true);
}