我想要一个在应用启动时打开的滑块。它将通过按钮等打开,并且当用户关闭它时,将有更多按钮可供访问。滑动抽屉可以吗?我会在onCreate()方法中添加什么?
谢谢
XML布局-在基本的LinearLayout中:
<SlidingDrawer android:id="@+id/slide" android:layout_width="match_parent" android:layout_height="wrap_content" android:content="@+id/content" android:handle="@+id/handle" android:orientation="vertical" android:scrollbars="vertical" > <LinearLayout android:id="@id/handle" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@drawable/btn" android:gravity="center" android:orientation="horizontal" > <ImageView android:id="@+id/handleImage" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/ic_tray_expand" /> <Button android:id="@+id/handleButton" android:layout_width="wrap_content" android:layout_height="match_parent" android:background="@drawable/btn" android:text="Up me" /> </LinearLayout> <LinearLayout android:id="@+id/content" android:paddingTop="2dp" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#013E53" android:gravity="center" android:orientation="vertical" > <TextView android:id="@+id/tv_commentDisplay" android:layout_width="fill_parent" android:layout_height="wrap_content" android:gravity="left" android:paddingLeft="10dp" android:textSize="20dp" /> </LinearLayout> </SlidingDrawer>
您的活动将如下所示:
public class Home extends Activity implements OnDrawerScrollListener { private ImageView handleImage; private Button handleButton; private SlidingDrawer slide; private TextView tv_commentDisplay; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.main); tv_commentDisplay = (TextView)this.findViewById(R.id.tv_commentDisplay); handleImage = (ImageView)this.findViewById(R.id.handleImage); handleButton = (Button)this.findViewById(R.id.handleButton); slide = (SlidingDrawer)this.findViewById(R.id.slide); slide.open(); // not sure slide.setOnDrawerScrollListener(this); handleButton = ((Button)this.findViewById(R.id.handleButton)); tv_commentDisplay.setText("Hello World"); } @Override public void onScrollEnded() { } @Override public void onScrollStarted() { if (slide.isOpened()) handleImage.setImageResource(R.drawable.ic_tray_collapse); else { handleImage.setImageResource(R.drawable.ic_tray_expand); } }