1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.systemui.statusbar.phone; 18 19 import android.content.Context; 20 import android.util.AttributeSet; 21 import android.view.MotionEvent; 22 import android.view.View; 23 import android.widget.ScrollView; 24 25 public class QuickSettingsScrollView extends ScrollView { 26 QuickSettingsScrollView(Context context)27 public QuickSettingsScrollView(Context context) { 28 super(context); 29 } 30 QuickSettingsScrollView(Context context, AttributeSet attrs)31 public QuickSettingsScrollView(Context context, AttributeSet attrs) { 32 super(context, attrs); 33 } 34 QuickSettingsScrollView(Context context, AttributeSet attrs, int defStyle)35 public QuickSettingsScrollView(Context context, AttributeSet attrs, int defStyle) { 36 super(context, attrs, defStyle); 37 } 38 39 // Y U NO PROTECTED getScrollRange()40 private int getScrollRange() { 41 int scrollRange = 0; 42 if (getChildCount() > 0) { 43 View child = getChildAt(0); 44 scrollRange = Math.max(0, 45 child.getHeight() - (getHeight() - mPaddingBottom - mPaddingTop)); 46 } 47 return scrollRange; 48 } 49 50 @Override onTouchEvent(MotionEvent ev)51 public boolean onTouchEvent(MotionEvent ev) { 52 final int range = getScrollRange(); 53 if (range == 0) { 54 return false; 55 } 56 57 return super.onTouchEvent(ev); 58 } 59 } 60