SlidingDrawer 使用

关于SlidingDrawer控件

1.重要属性

　　android:allowSingleTap：指示是否可以通过handle打开或关闭

　　android:animateOnClick：指示是否当使用者按下手柄打开/关闭时是否该有一个动画。

　　android:content：隐藏的内容

　　android:handle：handle（手柄）

2.重要方法

　　animateClose()：关闭时实现动画。

　　close()：即时关闭

　　getContent()：获取内容

　　isMoving()：指示SlidingDrawer是否在移动。

　　isOpened()：指示SlidingDrawer是否已全部打开

　　lock()：屏蔽触摸事件。

　　setOnDrawerCloseListener(SlidingDrawer.OnDrawerCloseListener onDrawerCloseListener)：SlidingDrawer关闭时调用

　　unlock()：解除屏蔽触摸事件。

　　toggle()：切换打开和关闭的抽屉SlidingDrawer。

实例：

自定义SlidingDrawer控件，为得是在SlidingDrawer关闭的状态下，显示content内容

package com.borqs.music.lyric;import android.content.Context;import android.graphics.Canvas;import android.provider.ContactsContract.CommonDataKinds.Event;import android.util.AttributeSet;import android.view.MotionEvent;import android.view.View;import android.widget.SlidingDrawer;public class LyricSlidingDrawer extends SlidingDrawer {    public LyricSlidingDrawer(Context paramContext, AttributeSet paramAttributeSet) {        this(paramContext, paramAttributeSet, 0);    }    public LyricSlidingDrawer(Context paramContext, AttributeSet paramAttributeSet, int paramInt) {        super(paramContext, paramAttributeSet, paramInt);    }    @Override    protected void dispatchDraw(Canvas canvas) {        long time = getDrawingTime();        View handle = super.getHandle();        View content = super.getContent();        drawChild(canvas, handle, time);        if (!isOpened() || isMoving()) {            canvas.save();            float f2 = handle.getBottom() - content.getTop();            canvas.translate(0, f2);            drawChild(canvas, content, time);            canvas.restore();        } else {            super.dispatchDraw(canvas);        }    }    @Override    public boolean onTouchEvent(MotionEvent event) {        if (event.getAction() == Event.OFFLINE) {            int i = super.getHandle().getBottom();            int j = (int)event.getY();            if (j > i) {                int k = i+20;                if (j <= k) {                    animateToggle();                }            }        }        return super.onTouchEvent(event);    }}

SlidingDrawer完全打开时隐藏专辑图片，完全关闭时显示专辑图片：

import android.app.Activity;import android.os.Bundle;import android.util.Log;import android.view.MotionEvent;import android.view.View;import android.view.View.OnTouchListener;import android.view.animation.AlphaAnimation;import android.view.animation.Animation;import android.view.animation.Animation.AnimationListener;import android.widget.ImageView;public class NowPlay extends Activity {    private static final String TAG = "NowPlay";private LyricSlidingDrawer mSlidingDrawer;private ImageView mHandle;@Overrideprotected void onCreate(Bundle savedInstanceState) {    Log.d(TAG, "onCreate()");super.onCreate(savedInstanceState);setContentView(R.layout.now_play);mSlidingDrawer = (LyricSlidingDrawer) findViewById(R.id.lyrics_sliding_drawer);mHandle = (ImageView) findViewById(R.id.lyrics_handle_image);//监听打开抽屉事件        mSlidingDrawer.setOnDrawerOpenListener(new C_SlidingDrawer.OnDrawerOpenListener() {@Overridepublic void onDrawerOpened() {mHandle.setImageResource(R.drawable.lyrics_handle_expand);AlphaAnimation animation = new AlphaAnimation(0.0f, 1.0f);            animation.setDuration(1000);            animation.setStartOffset(500);            animation.setAnimationListener(new fadeAnimationListener());            mAlbum.startAnimation(animation);}});        //监听关闭抽屉事件        mSlidingDrawer.setOnDrawerCloseListener(new C_SlidingDrawer.OnDrawerCloseListener() {@Overridepublic void onDrawerClosed() {mHandle.setImageResource(R.drawable.lyrics_handle_shrink);                AlphaAnimation animation = new AlphaAnimation(1.0f, 0.0f);                animation.setDuration(1000);                animation.setStartOffset(500);                animation.setAnimationListener(new fadeAnimationListener());                mAlbum.startAnimation(animation);}});}    private class fadeAnimationListener implements AnimationListener{        public void onAnimationEnd(Animation animation) {        }        public void onAnimationRepeat(Animation animation) {        }        public void onAnimationStart(Animation animation) {            if (mSlidingDrawer.isOpened()) {                mAlbum.setVisibility(View.GONE);                findViewById(R.id.rs_button_area).setVisibility(View.GONE);            } else {                mAlbum.setVisibility(View.VISIBLE);            }        }    }

所使用的Layout, 注意SlidingDrawer的相对位置！

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    android:id="@+id/parent">    <TextView android:id="@+id/trackname"   android:textSize="18sp"        android:singleLine="true"        android:ellipsize="end"        android:layout_gravity="center"        android:gravity="center"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_margin="8dip"        android:layout_alignParentTop="true" />    <ImageView android:id="@+id/album"  android:layout_below="@id/trackname"    android:layout_centerHorizontal="true"        android:background="@drawable/album_border_large"        android:layout_width="180dip"        android:layout_height="180dip"        android:layout_marginTop="8dip"/> <com.borqs.music.lyric.LyricSlidingDrawer android:id="@+id/lyric_slidingdrawer"        android:layout_below="@id/trackname"android:layout_above="@id/player_common_area"android:layout_width="fill_parent"android:layout_height="wrap_content"android:orientation="vertical"android:handle="@+id/handle"android:content="@+id/lyric_view"android:bottomOffset="-75dip"android:topOffset="0dip"android:animateOnClick="true"><ImageButton android:id="@id/handle"android:layout_width="wrap_content"android:layout_height="wrap_content"android:background="@drawable/lyr_handle_collapse_xml"/>    <com.borqs.music.lyric.LyricsView android:id="@id/lyric_view"        android:layout_width="fill_parent"        android:layout_height="fill_parent"        android:paddingTop="2dip"        android:paddingBottom="2dip"        android:paddingLeft="2dip"        android:paddingRight="2dip"/></com.borqs.music.lyric.LyricSlidingDrawer></RelativeLayout>

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