com.sj.android.appusage.ui.widgets.listview.SwipeListView.java Source code

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Here is the source code for com.sj.android.appusage.ui.widgets.listview.SwipeListView.java

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/*
 * Copyright (C) 2013 47 Degrees, LLC
 * http://47deg.com
 * hello@47deg.com
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.sj.android.appusage.ui.widgets.listview;

import android.content.Context;
import android.support.v4.view.MotionEventCompat;
import android.support.v4.view.ViewConfigurationCompat;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.ViewConfiguration;
import android.widget.ListView;

import com.sj.android.appusage.R;
import com.sj.android.appusage.ui.widgets.listview.SwipeListViewTouchListener.OnItemSwiped;

/**
 * ListView subclass that provides the swipe functionality
 */
public class SwipeListView extends ListView {

    /**
     * log tag
    */
    public final static String TAG = "SwipeListView";

    /**
    * whether debug
    */
    public final static boolean DEBUG = true;

    public final static int SWIPE_MODE_RIGHT = 2;

    public final static int SWIPE_ACTION_REVEAL = 0;

    /**
     * Indicates no movement
     */
    private final static int TOUCH_STATE_REST = 0;

    /**
     * State scrolling x position
     */
    private final static int TOUCH_STATE_SCROLLING_X = 1;

    private int touchState = TOUCH_STATE_REST;

    private float lastMotionX;
    private int touchSlop;

    int swipeFrontView = 0;
    int swipeBackView = 0;

    /**
     * Internal touch listener
     */
    private SwipeListViewTouchListener touchListener;

    /**
     * If you create a View programmatically you need send back and front identifier
     *
     * @param context        Context
     * @param swipeBackView  Back Identifier
     * @param swipeFrontView Front Identifier
     */
    public SwipeListView(Context context, int swipeBackView, int swipeFrontView) {
        super(context);
        this.swipeFrontView = swipeFrontView;
        this.swipeBackView = swipeBackView;
        init(null);
    }

    /**
     * @see android.widget.ListView#ListView(android.content.Context, android.util.AttributeSet)
     */
    public SwipeListView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init(attrs);
    }

    /**
     * @see android.widget.ListView#ListView(android.content.Context, android.util.AttributeSet, int)
     */
    public SwipeListView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init(attrs);
    }

    public void setOnItemSwipeListener(OnItemSwiped swipeListener) {
        touchListener.setOnItemSwiped(swipeListener);
    }

    /**
     * Init ListView
     *
     * @param attrs AttributeSet
     */
    private void init(AttributeSet attrs) {

        swipeFrontView = R.id.parentLayout;
        swipeBackView = R.id.frameForAnimLayout;
        final ViewConfiguration configuration = ViewConfiguration.get(getContext());
        touchSlop = ViewConfigurationCompat.getScaledPagingTouchSlop(configuration);
        touchListener = new SwipeListViewTouchListener(this, swipeFrontView, swipeBackView);
        setOnTouchListener(touchListener);
    }

}