Android 布局----让一个控件居底部1.采用linearlayout布局：Java codeLinearLayout android:id@+id/main
Android 布局----让一个控件居底部
1.采用linearlayout布局：
??? android:layout_width="fill_parent"
??? android:layout_height="fill_parent"
??? android:orientation="vertical" >
???
??? <LinearLayout android:id="@+id/content"
??????? android:layout_width="fill_parent"
??????? android:layout_height="0dp"
??????? android:layout_weight="1"
??????? android:orientation="vertical" />
??? <LinearLayout android:id="@+id/bottom_panel"
??????? android:layout_width="fill_parent"
??????? android:layout_height="wrap_content"
??????? android:orientation="horizontal" >
???????
??????? <Button android:id="@+id/done"
??????????? android:layout_width="0dp"
??????????? android:layout_height="wrap_content"
??????????? android:layout_weight="1"
??????????? android:layout_gravity="center_vertical"
??????????? android:text="done" />
???????????
??????? <Button android:id="@+id/revert"
??????????? android:layout_width="0dp"
??????????? android:layout_height="wrap_content"
??????????? android:layout_weight="1"
??????????? android:layout_gravity="center_vertical"
??????????? android:text="revert" />
??? </LinearLayout>
</LinearLayout>
2. 采用relativelayout布局：
<RelativeLayout android:id="@+id/main" ??? android:layout_width="fill_parent" ??? android:layout_height="fill_parent" >??? ??? <LinearLayout android:id="@+id/content" ??????? android:layout_width="fill_parent" ??????? android:layout_height="fill_parent" ??????? android:orientation="vertical" /> ??????? ??????? <LinearLayout android:id="@+id/bottom_panel" ??????????? android:layout_width="fill_parent" ??????????? android:layout_height="wrap_content" ??????????? android:orientation="horizontal" ??????????? android:layout_alignParentBottom="true" > ??????????? ??????????? <Button android:id="@+id/done" ??????????????? android:layout_width="0dp" ??????????????? android:layout_height="wrap_content" ??????????????? android:layout_weight="1" ??????????????? android:layout_gravity="center_vertical" ??????????????? android:text="done" /> ??????????????? ??????????? <Button android:id="@+id/revert" ??????????????? android:layout_width="0dp" ??????????????? android:layout_height="wrap_content" ??????????????? android:layout_weight="1" ??????????????? android:layout_gravity="center_vertical" ??????????????? android:text="revert" /> ??????????????? ??????? </LinearLayout> ??????? </RelativeLayout>
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