Android Open Source - Custom-SwipeListView Custom Swipe Undo Dialog

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The source code is released under:

Apache License

Java Source Code

/*
 *  COPYRIGHT NOTICE  /*  ww  w .  j  a  va  2  s.  com*/
 *  Copyright (C) 2015, xyczero <xiayuncheng1991@gmail.com>
 *  
 *    http://www.xyczero.com/
 *   
 *  @license under the Apache License, Version 2.0 
 *
 *  @file    CustomSwipeUndoDialog.java
 *  @brief   Custom Swipe Undo Dialog
 *  
 *  @version 1.0     
 *  @author  xyczero
 *  @date    2015/01/12    
 */
package com.xyczero.customswipelistview;

import android.app.Dialog;
import android.content.Context;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.TextView;

import com.xyczero.customlistview.R;

/**
 * Control the initialization,showing and closing of an inner class UndoDialog.
 * 
 * @author xyczero
 * 
 */
public class CustomSwipeUndoDialog {

  private Context mContext;

  /**
   * The message will been shown in the dialog.
   */
  private String mMessage;

  private UndoDialog mUndoDialog;

  /**
   * The listener that receives notifications when the mUndoBtn has been
   * clicked or the dialog is dismissed.
   */
  private OnUndoActionListener mUndoActionListener;

  public CustomSwipeUndoDialog(Context context) {
    mContext = context;
  }

  public void showUndoDialog() {
    if (mUndoDialog == null) {
      mUndoDialog = new UndoDialog(mContext);
    }
    mUndoDialog.show(mMessage);
  }

  protected void closeUndoDialog() {
    if (mUndoDialog != null) {
      mUndoDialog.dismiss();
    }
  }

  /**
   * set the message that will been shown in the dialog.
   * 
   * @param textId
   *            resource id of the string
   * @return
   */
  public CustomSwipeUndoDialog setMessage(int textId) {
    mMessage = mContext.getResources().getString(textId);
    return this;
  }

  /**
   * same as {@link #setMessage(int)}
   * 
   * @param textString
   *            message string
   * @return
   */
  public CustomSwipeUndoDialog setMessage(String textString) {
    mMessage = textString;
    return this;
  }

  /**
   * Register a callback to be invoked when the mUndoBtn has been clicked or
   * the dialog is dismissed.
   * 
   * @param undoActionListener
   */
  public void setUndoActionListener(OnUndoActionListener undoActionListener) {
    mUndoActionListener = undoActionListener;
  }

  /**
   * A custom dialog inner class. Used to show some custom message by
   * executing the removing action.
   * 
   * @author xyczero
   * 
   */
  private class UndoDialog extends Dialog implements OnClickListener {

    /**
     * The length of the distance on both sides in dip.
     */
    private static final int LAYOUT_MARGIN_SIDES = 10;

    private Button mUndoBtn;
    private TextView mUndoMessage;

    public UndoDialog(Context context) {
      super(context, R.style.CommonDialog);
      setContentView(R.layout.customswipe_undodialog_view);
      getWindow().setGravity(Gravity.BOTTOM);
      getWindow().setWindowAnimations(R.style.dialog_inout_anim);

      // TODO:To be optimized provide custom interface.
      // Custom the location and size of the dialog.
      WindowManager.LayoutParams p = this.getWindow().getAttributes();
      p.width = (int) (CustomSwipeUtils.getScreenWidth(context) - 2 * CustomSwipeUtils
          .convertDptoPx(context, LAYOUT_MARGIN_SIDES));
      getWindow().setAttributes(p);

      initView();
    }

    public void initView() {
      mUndoMessage = (TextView) findViewById(R.id.undo_dialog_message);
      mUndoBtn = (Button) findViewById(R.id.undo_dialog_btn);
      mUndoBtn.setOnClickListener(this);
    }

    private void show(String title) {
      mUndoMessage.setText(title);
      show();
    }

    /**
     * If {@link #mUndoActionListener} is not null ,it will perform
     * noExecuteUndoAction() before calling dismiss().
     */
    @Override
    public void dismiss() {
      if (mUndoActionListener != null) {
        mUndoActionListener.noExecuteUndoAction();
      }
      super.dismiss();
    }

    @Override
    public void onClick(View v) {
      switch (v.getId()) {
      case R.id.undo_dialog_btn:
        if (mUndoActionListener != null)
          mUndoActionListener.executeUndoAction();
        break;
      default:
        break;
      }
      dismiss();
    }
  }
}

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