我已安装了一台推土机,当露面显示4吨时,但在我试图点击时,这从来不是实际发生的(推土机不开放)。 然而,在一点点击推器时,部分图像观察手的图像资源会发生变化。

我有以下XML守则:

    <?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法典:

@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();
        }
    });