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iOSProgrammingViewandViewHierarchy视图和视图等级1.1(1)File→New→Project..FromtheiOSsection,selectApplication,choosetheEmptyApplicationtemplate,andclickNext.1.2ViewBasics(1)AviewisaninstanceofUIVieworoneofitssubclasses.一个视图是UIView或是它的子类的一个实例。(2... 查看全文
异常:--------Onlytheoriginalthreadthatcreatedaviewhierarchycantouchitsviewscauseby:Can'tcreatehandlerinsidethread代码如下:privateOnClickListenerbtnLisener=newOnClickListener(){publicvoidonClick(Viewarg0){createProgressDialog(MainActivity.this)... 查看全文
子线程不可以更新UI主线程newThread(){publicvoidrun(){mHandler.sendmessage(newMessage());}finalHandlermHandler=newHandler(){publicvoidhandleMessage(Messagemsg){super.handleMessage(msg);//更新具体的线程}};... 查看全文