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SmartRefreshLayout dispatchTouchEvent 解读
{ view child = viewgroup.getchildat(i - 1); if (istransformedtouchpointinview(viewgroup, child, event.getx(),event.gety(), point)) { event = motionevent.obtain(event); event.offsetlocation(point.x, point.y); return canrefresh(child, event); } } } return true; }step 5 滑动状态，通知父view不要...
Android开发：这可能是ViewPager2滑动冲突最全的处理方案，内外兼修，解决冲突！
private var mviewpager2: viewpager2? = null private var disallowparentinterceptdownevent = true private var startx= 0 private var starty = 0 override fun onfinishinflate(){ super.onfinishinflate() for (i in 0 until childcount){ val childview = getchildat(i) if (childview is viewpager2)...
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boolean needrecycler = view ! = null && view.getright() < getpaddingleft(); if (needrecycler) { removeandrecycleview(view, recycler); } else { return; } } } else { 回收尾部 for (int i = getchildcount() - 1; ; i--) { view view = getchildat(i); boolean needrecycler = view ! = null && view.get...
Android性能优化：过渡绘制解决方案
记录当前画布信息 final int restorecount = canvas.save(); if (drawingcontent) { 只有在绘制内容视图时才进行裁切 final int childcount =getchildcount(); for (int i = 0; i < childcount; i++) { final view v = getchildat(i); if (v == child || v.getvisibility() ! = visible || ! hasopaquebackground(v) ...
图文讲解RecyclerView的复用机制 ||Recyclerview进阶
i--) { final view v = getchildat(i); scraporrecycleview(recycler, i, v); }}private void scraporrecycleview(recycler recycler, int index, view view){ final viewholder viewholder = getchildviewholderint(view); ...删去了一些判断逻辑 detachviewat(index); 设置recyclerview这个位置的view的parent为...
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{ hookallchildview(viewgroup.getchildat(i) as viewgroup) } else{ hook(viewgroup.getchildat(i)) } } }@suppresslint(discouragedprivateapi, privateapi) private fun hook(view: view){ try { val getlistenerinfo: method = view::class.java.getdeclaredmethod(getlistenerinfo) getlistenerinfo.isaccessib...
App 可视化埋点技术实践精要
i--) { myview.view = group.getchildat(i); clickview = searchclickview(myview, event, i); if (clickview != null) { return clickview; } } } else { clickview = myview; }return clickview; } private boolean isinview(view view, motionevent event){ if (view == null || view.getvisibility() ! = view...
微信QQ附近好友雷达扫描效果的实现
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Android 可视化埋点方案
i--) { myview.view = group.getchildat(i); clickview = searchclickview(myview, event, i); if (clickview != null) { return clickview; } } } else { clickview = myview; }return clickview; } private boolean isinview(view view, motionevent event){ if (view == null || view.getvisibility() ! = view...
Android 基础
for (int i = 0; i < menuview.getchildcount(); i++) { bottomnavigationitemview item = (bottomnavigationitemview)menuview.getchildat(i); item.setshiftingmode(false); item.setchecked(item.getitemdata().ischecked()); } } catch (nosuchfieldexception e) { log.e(bnvhelper, unable to get shiftmode ...
View布局系列(1)-半圆弧形菜单
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android TabLayout的指示器宽度问题
for (int i = 0; i < ((viewgroup) tabstrip).getchildcount(); i++) { view tabview = tabstripgroup.getchildat(i); if (tabview.getlayoutparams() instanceof viewgroup.marginlayoutparams){ ((viewgroup.marginlayoutparams) tabview.getlayoutparams()).leftmargin =marginoffset; ((viewgroup.marginlayout...
Android实现图片滚动和页签控件功能的实现代码
view item = itemslayout.getchildat(i); marginlayoutparams params = (marginlayoutparams) item.getlayoutparams(); params.width = switcherviewwidth; item.setlayoutparams(params); item.setontouchlistener(this); } leftedge = borders; firstitem = itemslayout.getchildat(0); firstitemparams = (margin...
Android高级图片滚动控件实现3D版图片轮播器
getchildat(i); childview.recyclebitmap(); } } ** * 让控件中的所有图片开始滚动。 * private void beginscroll(int startx, int starty, int dx, int dy,final int action) { int duration = (int) (700f mimagewidth * math.abs(dx)); mscroller.startscroll(startx, starty, dx, dy, duration); invalidate()...
Kotlin自定义菜单控件
{getchildat(i).measure(width, width)if(i == count-1){var recordbutton =getchildat(i) as recordbuttonrecordbutton.isswitchmain =true}}setmeasureddimension(width, height)}private funinit(context: context, attrs: attributeset?{val typedarray = context.obtainstyledattributes(attrs, r.styleable...
Android自定义控件ScrollView实现上下滑动功能
int count = getchildcount(); for (int i = 0; i < count; i++) {view child = getchildat(i); measurechild(child, widthmeasurespec, heightmeasurespec); }}@overridepublic boolean ontouchevent(motionevent event) {int y = (int)event.gety(); 相对于view的y值，getrawy()是相对屏幕switch (event.getaction...
Android TV开发:实现3D仿Gallery效果的实例代码
getchildat(i); childview.recyclebitmap(); } } ** * 让控件中的所有图片开始滚动。 * private void beginscroll(int startx, int starty, int dx, int dy,final int action) { int duration = (int) (700f mimagewidth * math.abs(dx)); mscroller.startscroll(startx, starty, dx, dy, duration); invalidate()...
Android实现全屏截图或长截屏功能
适用于listview或recyclerview等求高度 for(int i = 0; i < viewgroup.getchildcount(); i++) { h += viewgroup.getchildat(i).getheight(); } 若viewgroup是scrollview，那么他的直接子元素有id的话，如下所示:h = mlinearlayout.getheight(); } 创建对应大小的bitmap(重点) bitmap =bitmap.createbitmap(scrollview...
Android实现截屏与截长图功能
} private static string tag = listview and scrollview item 截图:; ** * 截图listview * ** public static bitmapgetlistviewbitmap(listview listview,string picpath){ int h = 0; bitmap bitmap; 获取listview实际高度 for(int i = 0; i < listview.getchildcount(); i++) { h += listview.getchildat(i).get...
Android自定义上下左右间隔线
} 绘制横向 item 分割线 private void draw(canvas canvas, recyclerview parent){ int childsize = parent.getchildcount(); for (int i = 0; i < childsize; i++) { view child = parent.getchildat(i); recyclerview.layoutparams layoutparams = (recyclerview.layoutparams)child.getlayoutparams(); int left =...
