mars视频的潦草总结

1.dp:control component define
2.sp:text space define
3.setListener(checkbox, radiobox)
4.paddingTop, marginLeft
5.@string/app_name
6.setContextView
7.android:id='@+id/textView' R.id.textView
8.get control component, implement a class with a interface, new a specified class, set listener on control component.
9.ctrl+shift+o, import code.
10.imageView, display a picture.
11.linear layout,set width to 0dp, then set weight as 1 and 2
12.relativelayout, @+id/firstView, layout_toRightOf@id/firstView, if one is at the edge of left, the others can't present at it's left.
13.relativelayout,layout_alignParentRight="true"
14.align_(parent)start(end), gravity="center"(control the position of content in a control component),hint(attribute),inputType(textpassword)
15.timepicker, datePicker, the number of month starts from 0.
16.progressBar,第一进度，第二进度
17.seekbar,customer can drag it comparing with progressBar.