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上传时间: 2015-12-10
详细说明： /* * Copyright 2011 woozzu * * 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 specif ic language governing permissions and * limitations under the License. */ package com.youxiachai.onexlistview; import me.maxwin.view.XListView; import android.content.Context; import android.graphics.Canvas; import android.util.AttributeSet; import android.view.GestureDetector; import android.view.MotionEvent; import android.widget.ListAdapter; import com.woozzu.android.widget.IndexScroller; /** * @author youxiachai * @date 2013/5/11 */ public class XIndexableView extends XListView { private boolean mIsFastScrollEnabled = false; private IndexScroller mScroller = null; private GestureDetector mGestureDetector = null; public XIndexableView(Context context) { super(context); } public XIndexableView(Context context, AttributeSet attrs) { super(context, attrs); } public XIndexableView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); } @Override public boolean isFastScrollEnabled() { return mIsFastScrollEnabled; } @Override public void setFastScrollEnabled(boolean enabled) { mIsFastScrollEnabled = enabled; if (mIsFastScrollEnabled) { if (mScroller == null) mScroller = new IndexScroller(getContext(), this); } else { if (mScroller != null) { mScroller.hide(); mScroller = null; } } } @Override public void draw(Canvas canvas) { super.draw(canvas); // Overlay index bar if (mScroller != null) mScroller.draw(canvas); } @Override public boolean onTouchEvent(MotionEvent ev) { // Intercept ListView's touch event if (mScroller != null && mScroller.onTouchEvent(ev)) return true; if (mGestureDetector == null) { mGestureDetector = new GestureDetector(getContext(), new GestureDetector.SimpleOnGestureListener() { @Override public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { // If fling happens, index bar shows mScroller.show(); return super.onFling(e1, e2, velocityX, velocityY); } }); } mGestureDetector.onTouchEvent(ev); return super.onTouchEvent(ev); } @Override public boolean onInterceptTouchEvent(MotionEvent ev) { return true; } @Override public void setAdapter(ListAdapter adapter) { super.setAdapter(adapter); if (mScroller != null) mScroller.setAdapter(adapter); } @Override protected void onSizeChanged(int w, int h, int oldw, int oldh) { super.onSizeChanged(w, h, oldw, oldh); if (mScroller != null) mScroller.onSizeChanged(w, h, oldw, oldh); } } ...展开收缩
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