get Pointer Index in Motion Event - Android User Interface

Android examples for User Interface:MotionEvent

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Description

get Pointer Index in Motion Event

Demo Code

/*******************************************************************************
 * Copyright 2011, 2012 Chris Banes./*  w w  w. j a va  2  s .  c  o m*/
 * <p/>
 * 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
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * 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.java2s;
import android.annotation.TargetApi;
import android.os.Build.VERSION;
import android.os.Build.VERSION_CODES;
import android.view.MotionEvent;

public class Main {
    public static int getPointerIndex(int action) {
        if (VERSION.SDK_INT >= VERSION_CODES.HONEYCOMB)
            return getPointerIndexHoneyComb(action);
        else
            return getPointerIndexEclair(action);
    }

    @TargetApi(VERSION_CODES.HONEYCOMB)
    private static int getPointerIndexHoneyComb(int action) {
        return (action & MotionEvent.ACTION_POINTER_INDEX_MASK) >> MotionEvent.ACTION_POINTER_INDEX_SHIFT;
    }

    @SuppressWarnings("deprecation")
    @TargetApi(VERSION_CODES.ECLAIR)
    private static int getPointerIndexEclair(int action) {
        return (action & MotionEvent.ACTION_POINTER_ID_MASK) >> MotionEvent.ACTION_POINTER_ID_SHIFT;
    }
}

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