我在 android 中实现了一个抽屉,当打开时显示 4 个按钮,但是当我尝试单击它时,这实际上从未发生过(抽屉没有打开)。但是,当我单击抽屉时,组件 ImageView 处理程序的图像资源会发生变化。
我有以下 XML 代码:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/dynamicCategories"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/background"
android:orientation="vertical" >
<LinearLayout
android:id="@+id/linearLayout1"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:layout_gravity="center"
android:layout_marginTop="10dp"
android:layout_weight="0.1"
android:orientation="horizontal" >
.
.
.
</LinearLayout>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/LinearLayout01"
android:layout_width="fill_parent"
android:layout_height="42dp"
android:layout_weight="0.1"
android:gravity="bottom"
android:orientation="vertical" >
<SlidingDrawer
android:id="@+id/slidingDrawer1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/bar"
android:content="@+id/contentLayout"
android:handle="@+id/handle" >
<ImageView
android:id="@+id/handle"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1" />
<LinearLayout
android:id="@+id/contentLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@color/white" >
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Button" />
<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Button" />
<Button
android:id="@+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Button" />
<Button
android:id="@+id/button4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Button" />
</LinearLayout>
</SlidingDrawer>
</LinearLayout>
和java代码:
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(com.android.layout.R.layout.channelprogrammation);
drawer = (SlidingDrawer) findViewById(com.android.layout.R.id.slidingDrawer1);
// Drawer Programmation
drawer.setOnDrawerOpenListener(new OnDrawerOpenListener() {
public void onDrawerOpened() {
ImageView view = (ImageView) drawer.getHandle();
// change to bar selected
view.setImageResource(com.android.layout.R.drawable.ic_launcher);
Toast.makeText(getApplicationContext(), "Is open!", 3000)
.show();
drawer.open();
}
});
drawer.setOnDrawerCloseListener(new OnDrawerCloseListener() {
public void onDrawerClosed() {
Toast.makeText(getApplicationContext(), "Closed", 3000).show();
ImageView view = (ImageView) drawer.getHandle();
view.setImageResource(0);
drawer.close();
}
});