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最新评论
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Memories_NC:
本地lua脚本终于执行成功了,虽然不是通过redis
java中调用lua脚本语言1 -
ZHOU452840622:
大神://处理返回的接收状态 这个好像没有监听到 遇 ...
android 发送短信的两种方式 -
PXY:
拦截部分地址,怎么写的for(int i=0;i<lis ...
判断是否登录的拦截器SessionFilter -
maotou1988:
Android控件之带清空按钮(功能)的AutoComplet ...
自定义AutoCompleteTextView -
yangmaolinpl:
希望有表例子更好。。。,不过也看明白了。
浅谈onInterceptTouchEvent、onTouchEvent与onTouch
纯手工超级迷你轻量级全方向完美滑动处理侧滑控件(比官方 support v4 包 SlidingPaneLayout 控件更加 Q 迷你,累计代码不足 300 行),支持上下左右有各种侧拉,可配置侧拉松手临界距离,支持单独使用、ListView、GridView、RecycleView、ScrollView、ViewPager 等各种嵌套(作为 item 使用或者作为以上所有控件的父容器使用),具体不同配置展示效果如下图。
like SlidingPaneLayout, all direction support.
import android.content.Context; import android.content.res.TypedArray; import android.util.AttributeSet; import android.view.MotionEvent; import android.view.View; import android.view.ViewConfiguration; import android.view.ViewGroup; import android.widget.Scroller; /** * like SlidingPaneLayout, all direction support. */ public class SlideLayout extends ViewGroup { public static final int STATE_CLOSE = 0; public static final int STATE_SLIDING = 1; public static final int STATE_OPEN = 2; private static final int SLIDE_RIGHT = 0; private static final int SLIDE_LEFT = 1; private static final int SLIDE_TOP = 2; private static final int SLIDE_BOTTOM = 3; private View mContentView; private View mSlideView; private Scroller mScroller; private int mLastX = 0; private int mLastY = 0; private int mSlideCriticalValue = 0; private boolean mIsScrolling = false; private int mSlideDirection; public SlideLayout(Context context) { this(context, null); } public SlideLayout(Context context, AttributeSet attrs) { this(context, attrs, 0); } public SlideLayout(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); init(context, attrs); } private void init(Context context, AttributeSet attrs) { TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.SlideLayout); mSlideDirection = typedArray.getInt(R.styleable.SlideLayout_slideDirection, SLIDE_RIGHT); mSlideCriticalValue = typedArray.getDimensionPixelSize(R.styleable.SlideLayout_slideCriticalValue, 0); typedArray.recycle(); mScroller = new Scroller(context); } public int getSlideState() { int retValue = STATE_CLOSE; if (mIsScrolling) { retValue = STATE_SLIDING; } else { int scrollOffset = (mSlideDirection == SLIDE_LEFT || mSlideDirection == SLIDE_RIGHT) ? getScrollX() : getScrollY(); retValue = (scrollOffset == 0) ? STATE_CLOSE : STATE_OPEN; } return retValue; } public void smoothCloseSlide() { smoothScrollTo(0, 0); } public void smoothOpenSlide() { switch (mSlideDirection) { case SLIDE_RIGHT: smoothScrollTo(mSlideView.getMeasuredWidth(), 0); break; case SLIDE_LEFT: smoothScrollTo(-mSlideView.getMeasuredWidth(), 0); break; case SLIDE_TOP: smoothScrollTo(0, -mSlideView.getMeasuredHeight()); break; case SLIDE_BOTTOM: smoothScrollTo(0, mSlideView.getMeasuredHeight()); break; } } @Override protected void onFinishInflate() { super.onFinishInflate(); if (getChildCount() != 2) { throw new IllegalArgumentException("SlideLayout only need contains two child (content and slide)."); } mContentView = getChildAt(0); mSlideView = getChildAt(1); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { measureChildren(widthMeasureSpec, heightMeasureSpec); setMeasuredDimension(mContentView.getMeasuredWidth(), mContentView.getMeasuredHeight()); } @Override protected void onLayout(boolean changed, int l, int t, int r, int b) { mContentView.layout(0, 0, getMeasuredWidth(), getMeasuredHeight()); switch (mSlideDirection) { case SLIDE_LEFT: mSlideView.layout(-mSlideView.getMeasuredWidth(), 0, 0, getMeasuredHeight()); break; case SLIDE_RIGHT: mSlideView.layout(getMeasuredWidth(), 0, mSlideView.getMeasuredWidth() + getMeasuredWidth(), getMeasuredHeight()); break; case SLIDE_TOP: mSlideView.layout(0, -mSlideView.getMeasuredHeight(), getMeasuredWidth(), 0); break; case SLIDE_BOTTOM: mSlideView.layout(0, getMeasuredHeight(), getMeasuredWidth(), mSlideView.getMeasuredHeight() + getMeasuredHeight()); break; } } @Override public boolean onInterceptTouchEvent(MotionEvent event) { return mIsScrolling || super.onInterceptTouchEvent(event); } @Override public boolean dispatchTouchEvent(MotionEvent event) { int eventX = (int) event.getX(); int eventY = (int) event.getY(); int scrollX = getScrollX(); int scrollY = getScrollY(); switch (event.getAction()) { case MotionEvent.ACTION_DOWN: mLastX = (int) event.getX(); mLastY = (int) event.getY(); mIsScrolling = false; //Maybe child not set OnClickListener, so ACTION_DOWN need to return true and use super. super.dispatchTouchEvent(event); return true; case MotionEvent.ACTION_MOVE: int offsetX = eventX - mLastX; int offsetY = eventY - mLastY; int directionMoveOffset = 0; if (mSlideDirection == SLIDE_LEFT || mSlideDirection == SLIDE_RIGHT) { directionMoveOffset = Math.abs(offsetX) - Math.abs(offsetY); } else { directionMoveOffset = Math.abs(offsetY) - Math.abs(offsetX); } if (!mIsScrolling && directionMoveOffset < ViewConfiguration.getTouchSlop()) { break; } getParent().requestDisallowInterceptTouchEvent(true); mIsScrolling = true; int newScrollX = 0; int newScrollY = 0; switch (mSlideDirection) { case SLIDE_RIGHT: newScrollX = scrollX - offsetX; if (newScrollX < 0) { newScrollX = 0; } else if (newScrollX > mSlideView.getMeasuredWidth()) { newScrollX = mSlideView.getMeasuredWidth(); } break; case SLIDE_LEFT: newScrollX = scrollX - offsetX; if (newScrollX < -mSlideView.getMeasuredWidth()) { newScrollX = -mSlideView.getMeasuredWidth(); } else if (newScrollX > 0) { newScrollX = 0; } break; case SLIDE_TOP: newScrollY = scrollY - offsetY; if (newScrollY < -mSlideView.getMeasuredHeight()) { newScrollY = -mSlideView.getMeasuredHeight(); } else if (newScrollY > 0) { newScrollY = 0; } break; case SLIDE_BOTTOM: newScrollY = scrollY - offsetY; if (newScrollY < 0) { newScrollY = 0; } else if (newScrollY > mSlideView.getMeasuredHeight()) { newScrollY = mSlideView.getMeasuredHeight(); } break; } scrollTo(newScrollX, newScrollY); break; case MotionEvent.ACTION_UP: case MotionEvent.ACTION_CANCEL: mIsScrolling = false; getParent().requestDisallowInterceptTouchEvent(false); int finalScrollX = 0; int finalScrollY = 0; switch (mSlideDirection) { case SLIDE_RIGHT: if (scrollX > getSlideCriticalValue()) { finalScrollX = mSlideView.getMeasuredWidth(); } break; case SLIDE_LEFT: if (scrollX < -getSlideCriticalValue()) { finalScrollX = -mSlideView.getMeasuredWidth(); } break; case SLIDE_TOP: if (scrollY < -getSlideCriticalValue()) { finalScrollY = -mSlideView.getMeasuredHeight(); } break; case SLIDE_BOTTOM: if (scrollY > getSlideCriticalValue()) { finalScrollY = mSlideView.getMeasuredHeight(); } break; } smoothScrollTo(finalScrollX, finalScrollY); break; } mLastX = eventX; mLastY = eventY; return super.dispatchTouchEvent(event); } //TODO when mSlideCriticalValue != 0, slide critical need fix. private int getSlideCriticalValue() { if (mSlideDirection == SLIDE_LEFT || mSlideDirection == SLIDE_RIGHT) { if (mSlideCriticalValue == 0) { mSlideCriticalValue = mSlideView.getMeasuredWidth() / 2; } } else { if (mSlideCriticalValue == 0) { mSlideCriticalValue = mSlideView.getMeasuredHeight() / 2; } } return mSlideCriticalValue; } private void smoothScrollTo(int destX, int destY) { int scrollX = getScrollX(); int deltaX = destX - scrollX; int scrollY = getScrollY(); int deltaY = destY - scrollY; mScroller.startScroll(scrollX, scrollY, deltaX, deltaY, (int) (Math.abs(Math.sqrt(deltaX*deltaX + deltaY*deltaY)) * 3)); postInvalidate(); } @Override public void computeScroll() { if (mScroller.computeScrollOffset()) { scrollTo(mScroller.getCurrX(), mScroller.getCurrY()); postInvalidate(); } } }
自定义属性:
<declare-styleable name="SlideLayout"> <attr name="slideDirection"> <enum name="fromRight" value="0"/> <enum name="fromLeft" value="1"/> <enum name="fromTop" value="2"/> <enum name="fromBottom" value="3"/> </attr> <attr name="slideCriticalValue" format="dimension"/> </declare-styleable>
like SlidingPaneLayout, but this used to mini lib and only support right slide.
used to no support v4 import.
import android.content.Context; import android.util.AttributeSet; import android.view.MotionEvent; import android.view.View; import android.widget.LinearLayout; import android.widget.Scroller; /** * like SlidingPaneLayout, but this used to mini lib and only support right slide. * used to no support v4 import. */ public class MiniSlideRightLayout extends LinearLayout { public static final int STATE_CLOSE = 0; public static final int STATE_SLIDING = 1; public static final int STATE_OPEN = 2; private View mContentView; private View mSlideView; private Scroller mScroller; private int mLastX = 0; private int mLastY = 0; private int mSlideSensitiveWidth = 0; private boolean mIsScrolling = false; public MiniSlideRightLayout(Context context) { this(context, null); } public MiniSlideRightLayout(Context context, AttributeSet attrs) { this(context, attrs, 0); } public MiniSlideRightLayout(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); init(context, attrs); } private void init(Context context, AttributeSet attrs) { setOrientation(HORIZONTAL); mScroller = new Scroller(context); } @Override protected void onFinishInflate() { super.onFinishInflate(); if (getChildCount() != 2) { throw new IllegalArgumentException("SlideLayout only need contains two child (content and slide)."); } mContentView = getChildAt(0); mSlideView = getChildAt(1); } public int getSlideState() { int retValue = STATE_CLOSE; if (mIsScrolling) { retValue = STATE_SLIDING; } else { retValue = (getScrollX() == 0) ? STATE_CLOSE : STATE_OPEN; } return retValue; } public void smoothCloseSlide() { smoothScrollTo(0, 0); } public void smoothOpenSlide() { smoothScrollTo(mSlideView.getMeasuredWidth(), 0); } @Override public boolean onInterceptTouchEvent(MotionEvent event) { return mIsScrolling || super.onInterceptTouchEvent(event); } @Override public boolean dispatchTouchEvent(MotionEvent event) { int eventX = (int) event.getX(); int eventY = (int) event.getY(); int scrollX = getScrollX(); switch (event.getAction()) { case MotionEvent.ACTION_DOWN: mLastX = (int) event.getX(); mLastY = (int) event.getY(); mIsScrolling = false; //Maybe child not set OnClickListener, so ACTION_DOWN need to return true and use super. super.dispatchTouchEvent(event); return true; case MotionEvent.ACTION_MOVE: int offsetX = eventX - mLastX; int offsetY = eventY - mLastY; if (Math.abs(offsetX) - Math.abs(offsetY) < 1) { break; } getParent().requestDisallowInterceptTouchEvent(true); mIsScrolling = true; int newScrollX = scrollX - offsetX; if (newScrollX < 0) { newScrollX = 0; } else if (newScrollX > mSlideView.getMeasuredWidth()) { newScrollX = mSlideView.getMeasuredWidth(); } scrollTo(newScrollX, 0); break; case MotionEvent.ACTION_UP: case MotionEvent.ACTION_CANCEL: mIsScrolling = false; getParent().requestDisallowInterceptTouchEvent(false); int finalScrollX = 0; mSlideSensitiveWidth = mSlideView.getMeasuredWidth() / 2; if (scrollX > mSlideSensitiveWidth) { finalScrollX = mSlideView.getMeasuredWidth(); } smoothScrollTo(finalScrollX, 0); break; } mLastX = eventX; mLastY = eventY; return super.dispatchTouchEvent(event); } private void smoothScrollTo(int destX, int destY) { int scrollX = getScrollX(); int deltaX = destX - scrollX; int scrollY = getScrollY(); int deltaY = destY - scrollY; mScroller.startScroll(scrollX, scrollY, deltaX, deltaY, (int) (Math.abs(Math.sqrt(deltaX*deltaX + deltaY*deltaY)) * 3)); postInvalidate(); } @Override public void computeScroll() { if (mScroller.computeScrollOffset()) { scrollTo(mScroller.getCurrX(), mScroller.getCurrY()); postInvalidate(); } } }
https://github.com/yanbober/SlideLayout
发表评论
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NestedScrollView滚动到顶部固定子View悬停挂靠粘在顶端
2018-10-31 20:45 6820网上有一个StickyScrollView,称之为粘性Scro ... -
自定义Behavior实现AppBarLayout越界弹性效果
2017-03-31 09:33 10253一、继承AppBarLayout.Beha ... -
Android - 一种相似图片搜索算法的实现
2017-03-31 09:33 2573算法 缩小尺寸。 将图片缩小到8x8的尺寸,总共64个 ... -
使用SpringAnimation实现带下拉弹簧动画的 ScrollView
2017-03-30 11:30 2799在刚推出的 Support Library 25.3.0 里面 ... -
Android为应用添加角标(Badge)
2017-03-30 11:21 61121.需求简介 角标是什么意思呢? 看下图即可明了: 可 ... -
Android端与笔记本利用局域网进行FTP通信
2017-03-23 10:17 934先看图 打开前: 打开后: Activity类 ... -
PorterDuffColorFilter 在项目中的基本使用
2017-03-03 10:58 1305有时候标题栏会浮在内容之上,而内容会有颜色的变化,这时候就要求 ... -
ColorAnimationView 实现了滑动Viewpager 时背景色动态变化的过渡效果
2017-02-24 09:41 2178用法在注释中: import android.anima ... -
Effect
2017-01-05 09:57 0https://github.com/JetradarMobi ... -
动态主题库Colorful,容易地改变App的配色方案
2016-12-27 14:49 2529Colorful是一个动态主题库,允许您很容易地改变App的配 ... -
对视图的对角线切割DiagonalView
2016-12-27 14:23 1077提供对视图的对角线切割,具有很好的用户定制 基本用法 ... -
仿淘宝京东拖拽商品详情页上下滚动黏滞效果
2016-12-26 16:53 3425比较常用的效果,有现成的,如此甚好!:) import ... -
让任意view具有滑动效果的SlideUp
2016-12-26 09:26 1668基本的类,只有一个: import android.a ... -
AdvancedWebView
2016-12-21 09:44 16https://github.com/delight-im/A ... -
可设置圆角背景边框的按钮, 通过调节色彩明度自动计算按下(pressed)状态颜色
2016-11-02 22:13 1868可设置圆角背景边框的的按钮, 通过调节色彩明度自动计算按下(p ... -
网络请求库相关
2016-10-09 09:35 62https://github.com/amitshekhari ... -
ASimpleCache一个简单的缓存框架
2015-10-26 22:53 2128ASimpleCache 是一个为android制定的 轻量级 ... -
使用ViewDragHelper实现的DragLayout开门效果
2015-10-23 10:55 3350先看一下图,有个直观的了解,向下拖动handle就“开门了”: ... -
保证图片长宽比的同时拉伸图片ImageView
2015-10-16 15:40 3683按比例放大图片,不拉伸失真 import android. ... -
向上拖动时,可以惯性滑动显示到下一页的控件DragLayout
2015-10-16 14:53 5534仿照淘宝和聚美优品,在商品详情页,向上拖动时,可以加载下一页。 ...
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