1、流式布局特点、应用场景
2、自定义ViewGroup需要重写：
onMeasure：测量子View的宽、高，设置自己的宽、高；
onLayout：设置子View的位置；
onMeasure：根据子View的布局文件，为子View设置测量模式和测量值；
测量=测量模式+测量值；来决定view的宽或高的值；
测量模式有三种：
1、EXACTLY：传递过来的是精确值如100dp、match_parent；
2、AT_MOST：当子View里面设置为wrap_content时为此种测量模式；由子View内部的形态来决定当前View的宽、高；
3、UNSPCIFIED：(不常用)子View想要多大就给多大,一般出现在ScrollView上；
ViewGroup对应一个LayoutParams；
FlowLlayout使用MarginLayoutParams类型；
子View.getLayoutParams()得到的LayoutParams类型由父控件的LayoutParams类型决定；
Android小控件集合 （537个子文件） 
resources.ap_ 1.41MB Lib.apk 1.87MB jarlist.cache 120B ImageCycleView.class 11KB ImageLoader.class 9KB ArcMenu.class 8KB LockPatternView.class 8KB ListViewRefresh.class 8KB AudioRecorderButton.class 7KB ImageLoaderActivity.class 7KB WeChatActivivty.class 7KB TabView.class 7KB DownLoadTask$DownLoadThread.class 5KB TreeListViewAdapter.class 5KB ImageCycleViewActivity.class 5KB DownLoadTask.class 5KB FlowLayout.class 5KB MainActivity.class 5KB SlidingMenu.class 5KB Tree.class 5KB TreeHelper.class 5KB DirPopupWindow.class 5KB FragmentTab.class 5KB TitleBar.class 4KB DownServiceActivity.class 4KB ImageLoaderActivity$3.class 4KB ColorMatrixActivity.class 4KB R$id.class 4KB ThreadDaoImpl.class 4KB TalkAdapter.class 3KB R$drawable.class 3KB ImageHelper.class 3KB StartMenu.class 3KB StartMenu.class 3KB DownService.class 3KB TreeNode.class 3KB ListViewRfreshActivity.class 3KB AudioManager.class 3KB WeChatTalkActivity.class 3KB ImageAdapter.class 3KB DialogManager.class 3KB DownService$DownLoadThread.class 3KB ImageCycleView$ViewPagerAdapter.class 3KB ViewHolder.class 3KB TreeActivity.class 3KB PrimaryColorActivity.class 3KB DownServiceActivity$1.class 3KB DownLoad$DownLoadRunnable.class 3KB ViewPagerCustormerActivity$1.class 2KB StartMenu2.class 2KB DirPopupWindow$DirAdapter.class 2KB ViewPagerTransformer.class 2KB UpLoadFile.class 2KB AdapterAcitivty.class 2KB MainAdapter.class 2KB ImageCycleView$3.class 2KB ImageViewZoom.class 2KB FileListAdapter.class 2KB ThreadInfo.class 2KB ViewPagerActivity$1.class 2KB TreeActivity$2.class 2KB R$layout.class 2KB WeChatActivivty$3.class 2KB DBHelper.class 2KB DirPopupWindow$2.class 2KB CommonAdapter.class 2KB FolderBean.class 2KB MediaManager.class 2KB ImageCycleView$1.class 2KB ViewPagerActivity.class 2KB ViewPagerCustormerActivity.class 2KB TalkAdapter$1.class 2KB MainActivity$1.class 2KB Point.class 2KB FileInfo.class 2KB FlowLayoutActivity.class 2KB ImageLoader$4.class 2KB DownLoad.class 2KB Tree$1.class 2KB ImageMain.class 2KB ImageCycleView$ViewPagerAdapter$1.class 2KB PixelsActivity.class 2KB R$styleable.class 2KB ColorMatrixActivity$1.class 2KB FileBean.class 2KB AudioRecorderButton$4.class 2KB FileListAdapter$2.class 2KB FileListAdapter$1.class 2KB AudioRecorderButton$2.class 2KB ImageAdapter$1.class 2KB WeChatTalkActivity$1.class 2KB Tree$2.class 2KB DownLoadActivity.class 2KB ImageLoader$3.class 2KB ListViewRfreshActivity$1.class 2KB ListViewRfreshActivity$2.class 1KB DownService$1.class 1KB ImageCycleViewActivity$1.class 1KB ImageLoader$1$1.class 1KB DepthPageTransformer.class 1KB共 537 条
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