本文主要介紹自動(dòng)換行l(wèi)inearlayout，下面一起看看自動(dòng)換行l(wèi)inearlayout相關(guān)資訊。
轉(zhuǎn):(22條消息)radiogroup的博客帶自動(dòng)換行點(diǎn)擊事件_再見美猴王_ -csdn博客。
公共類myradiogroup擴(kuò)展了radio group { private static final string tag = radiogroupex public my radio group(context context){ super(context)；} public my radio group(context context，attributeset attrs){ super(context，attrs)；} @ override protected void on measure(int widthmeasurespec，int heightsmeasurespec){ int width size = measurespec . getsize(widthmeasurespec)；int width mode = measure spec . get mode(widthmeasurespec)；int heightsize = measure spec . getsize(heightsmeasurespec)；int height mode = measure spec . get mode(heightmaurespec)；//調(diào)用viewgroup的方法來度量視圖measure children(width measure spec，heightmeasurespec)；//最大寬度int maxwidth = 0；//累計(jì)高度int total height = 0；//當(dāng)前行的累計(jì)線寬int line width = 0；//當(dāng)前行的最大行高int maxline height = 0；//用于記錄換行前的線寬和行高int oldheightint舊寬度；int count = get child count；//假設(shè)widthmode和heightmode都是_ most for(int i = 0；我數(shù)；i){ view child = get child at(i)；邊緣layout params params =(marginlayoutparams)child . getlayout params；//獲取該行的最高oldheight = maxlineheight//當(dāng)前最大寬度oldwidth = maxwidthint deltax = child . getmeasuredwidthparams . left margin params . right margin；if(line width deltax getpadding lightgetpadding lightwidth size){//如果換行，高度增加//與當(dāng)前最大寬度相比，獲得最寬寬度。你可以 t加上當(dāng)前子的寬度，所以你用寬度maxwidth = math.max (line width，width)；//reset width line width = deltax；//累積高度totalheight = oldheight//重置行高。當(dāng)前視圖屬于下一行，因此當(dāng)前最大行高是該子級(jí)的高度加上marginmax line height = child。getmeasureheight參數(shù)。上邊距參數(shù)。底部邊距；log.v(標(biāo)簽， maxheightcho 0-@ . com 總高度 - maxwidth: maxwidth)；} else {//不換行，累計(jì)寬度linewidth = deltax//不換行，計(jì)算最高int deltay = child . getmeasureheightparams . top margin params . bottom margin；maxline height = math . max(maxline height，deltay)；} if (i == count-1) {//在它之前不添加下一行。如果是最后一行，必須疊加最后一行的最高值:totalheight = maxlineheight//將計(jì)算的最后一行與其前面最寬的一行進(jìn)行比較maxwidth = math.max(線寬，舊寬度)；} }//加上當(dāng)前容器的填充值maxwidth = getpadding lightgetpadding light；total height = getpadding topgetpadding bottom；setmeasureddimension(width mode = = measure spec。確實(shí)如此。寬度尺寸:最大寬度，高度模式==測(cè)量規(guī)格。確實(shí)如此。h:總高度)；} @ override protected void onlayout(boolean changed，int l，int t，int r，int b){ int count = get child count；//pre是所有前一個(gè)子元素的添加位置。int pre left = getpadding left；int pretop = getpadding top；//記錄每行的最高值int max height = 0；for(int i = 0；我數(shù)；i){ view child = get child at(i)；marginlayoutparams params =(marginlayoutparams)child . getlayoutparams；//r-l是當(dāng)前容器的寬度。如果子視圖的累積寬度大于容器寬度，則換行。if(前置左參數(shù)。左邊距子對(duì)象。getmeasurewidth參數(shù)。右邊距getpadding light(r-l)){//reset pre left = getpadding left；//選擇身高最大的孩子作為設(shè)置pretop = pretop maxheightmaxheight = getchildat(i)。getmeasuredheightparams . top margin params . bottom margin；} else {//不換行，計(jì)算最大高度max height = math.max (max height，child。getmeasureheight參數(shù)。上邊距參數(shù)。下邊距)；}//左坐標(biāo)intleft = prelefparams。左邊距；//top coordinate int top = pretop params . top margin；int right = left child . getmeasuredwidth；int bottom = top child . getmeasuredheight；//子視圖的layout child.layout (left，top，right，bottom)；//計(jì)算布局后，preleft = params的值。leftmarginchild。getmeasurewidth參數(shù)。右邊距；}}}標(biāo)簽:
寬度包裝
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