android 开发 drawerlayout出现退不回去的情况

时间:2022-12-31 07:37:26

问题原因:

id_framelayout2  写在 id_linearlayout2 的后面了;

注意记得写:
android:layout_gravity="start"

正确:

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/id_drawerlayout2"
android:layout_width="match_parent"
android:layout_height="match_parent" > <FrameLayout
android:id="@+id/id_framelayout2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#cd9a5b" >
</FrameLayout> <LinearLayout
android:id="@+id/id_linearlayout2"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#45b97c"
android:orientation="vertical" > <ListView
android:id="@+id/id_lv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:divider="#CD853F"
android:dividerHeight="2dp" >
</ListView>
</LinearLayout> </android.support.v4.widget.DrawerLayout>