[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fz7y8zowuCMrKKalJ_D8y5oThLsIytWCpVjpJtvMSEYE":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-11-25 21:45:47",167452585,[8,9,10,11],"android:id属性声明了TextView的ID,这个ID的功能是能被用于在代码中引用这个TextView对象","@表示后面的字符串是ID资源的名称","加号(+)表示需要建立新资源名称,并添加到R.java文件中","加号(+)表示需要建立新资源名称,需手工修改R.java,进行添加",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},40,"c2565ad01f93b8808c90b9ea0b6246cd","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F25b30343053994e8940089572d36015b.jpg","网络开发综合实训（移动应用开发）","work_39288918","作业五","TextView android:id="@+id\u002FTextView01 这句代码的作用,描述不正确的是( )",[21,32,41,44,53,62,71,80,86,95],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],167452583,[25,26,27,28],"FlashText","Button","Spinner","TextView","系统控件是Android系统提供给用户已经封装的界面控件.提供在应用程序开发过程中常见功能控件.系统控件更有利于帮助用户进行快速开发,同时能够使Android系统中应用程序的界面保持一致性,以下哪些控件不是系统控件( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],167452584,[36,37,38,39],"TextView是一种用于显示字符串的控件","EditText不是系统提供的标准的控件","EditText从本质上讲,其实是一个具有编辑功能的TextView","TextView textView = (TextView)findViewById(R.id.TextView01);表示FindViewById()函数能够通过ID引用界面上的任何控件,只要该控件在XML文件中定义过ID即可","关于TextView和EditText的描述,以下哪个选项是不正确的( )",{"answer":42,"createTime":5,"id":6,"options":43,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":30,"type":31},[],167452586,[48,49,50,51],"DPI(dot per inch),每英寸像素数,如120dpi,160dpi等,假设QVGA(320*240)分辨率的屏幕物理尺寸是(2英寸*1.5英寸),则dpi=160","dip device independent pixels(设备独立像素). 不同设备不同的显示效果,这个和设备硬件有关,一般我们为了支持WVGA、HVGA和QVGA 推荐使用这个,不依赖像素","在android上开发的程序将会在不同分辨率的手机上运行.为了让程序外观不至于相差太大,所以引入了dip的概念.比如定义一个矩形10 x 10dip.在分辨率为160dpi的屏上,比如G1,正好是10 x 10像素.而在240 dpi的屏,则是15 x 15像素.换算公式为pixs = dips * (density\u002F160). density就是屏的分辨率","设定大小的字体在不同分辨率手机上的显示是完全系统的,所以没必要设定尺寸","Android应用开发中,界面布局经常会涉及尺寸大小的设置,如字体的大小,间隔位置的大小,以下叙述有问题的是( )",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":30,"type":31},[],167452587,[57,58,59,60],"Activity生命周期指Activity从启动到销毁的过程","Activity表现为四种状态,分别是活动状态、暂停状态、停止状态和非活动状态","void onCreate();Activity启动后第一个被调用的函数,常用来进行Activity的初始化,例如创建View、绑定数据或恢复信息等","void onCreate();Activity启动后第一个被调用的函数,这个函数可有可没有","所有Android组件都具有自己的生命周期,是从组件建立到组件销毁的整个过程,因为Android应用程序的生存期并不是由应用本身直接控制的,而是由 Android系统平台进行管理的,所以,对于对于我们开发者而言, Activity作为最基本的组件,我们必须掌握相关的生命周期的概念,以下叙述有问题的是( )",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],167452588,[66,67,68,69],"android:layout_above 将该控件的底部置于给定ID的控件之上","android:id ——指定控件当中字体的大小","android:textSize ——指定控件的高度","android:width ——指定控件当中字体的大小","做移动应用程序,界面布局是最基本的要素,对界面中所有控件的各种属性的灵活设置和运用,能使界面看上去更加独特和专业,以下对界面设置相关叙述正确的是要求的是( )",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],167452589,[75,76,77,78],"\u002Fsdcard\u002Fdownload\u002F","\u002Fdata\u002Fdata\u002F<packagename>\u002Fdatabases\u002F","\u002Fdata\u002Fapp\u002F","\u002Fdata\u002Fdata\u002F<packagename>\u002Fcache\u002F","Android系统中用于存储第三方Android应用程序的APK文件的目录名称是( )",{"answer":81,"createTime":5,"id":82,"options":83,"question":85,"source":30,"type":31},[],167452590,[75,76,77,84],"\u002Fdata\u002Fdata\u002F<packagename>\u002F","Android系统中应用程序顶层的目录名称是( )",{"answer":87,"createTime":5,"id":88,"options":89,"question":94,"source":30,"type":31},[],167452591,[90,91,92,93],"Broadcast","Activity","Java","Intent","在android开发中,是一种广泛运用的在应用程序之间传输信息的机制( )",{"answer":96,"createTime":5,"id":97,"options":98,"question":103,"source":30,"type":31},[],167452592,[99,100,101,102],"Context是对发送出来的Broadcast进行过滤接受并响应的一类组件","广播接收器仅在它执行这个方法时处于失活状态.当onRecever()返回后,它就变为活跃状态","在AndroidManifest.xml中用<intent-filter>标签声明注册BroadcastReceiver","Category是一种广泛运用的在应用程序之间传输信息的机制","在android开发中,以下说法正确的是( )"]