第九节(Activity布局初步二--嵌套布局)
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="1" > <Button android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="one" android:layout_weight="1" /> <Button android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="two" android:layout_weight="1" /> <Button android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="three" android:layout_weight="1" /> </LinearLayout> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="1" > <Button android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="one" android:layout_weight="1" /> <Button android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="two" android:layout_weight="1" /> <Button android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="three" android:layout_weight="1" /> </LinearLayout> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="1" > <TableLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:stretchColumns="0" > <!-- android:stretchColumns="0"如果不能撑满窗口,拉伸第0列填满窗口 --> <TableRow> <TextView android:text="column1" android:padding="5dip" android:background="#aa0000" /> <TextView android:text="column2" android:padding="5dip" android:background="#0000aa" android:layout_gravity="center_vertical" /> <TextView android:text="column3" android:padding="5dip" android:background="#00aa00" /> </TableRow> <TableRow> <TextView android:text="column1" android:padding="5dip" /> <TextView android:text="column2" android:padding="5dip" /> <TextView android:text="column3" android:padding="5dip" /> </TableRow> </TableLayout> </LinearLayout> </LinearLayout>
android:layout_weight="1" 可叫 “权重”
此属性指定该标签在一个布局当中占x/y的空间
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