2011.06.03——— android 1.6 launcher研究之SlidingDrawer-优快云博客

本文链接：https://blog.youkuaiyun.com/cody123/article/details/83940683

本文详细介绍了Android中SlidingDrawer控件的使用方法，包括如何创建滑动抽屉效果，实现打开关闭监听及滚动监听等核心功能。并附带了完整的代码示例。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

2011.06.03——— android 1.6 launcher研究之SlidingDrawer
参考：[url]http://www.cnblogs.com/salam/archive/2010/10/19/1855511.html[/url]

lidingDrawer隐藏屏外的内容，并允许用户通过handle以显示隐藏内容。它可以垂直或水平滑动，它有俩个View组成，其一是可以拖动的handle,其二是隐藏内容的View.它里面的控件必须设置布局，在布局文件中必须指定handle和content.

MainActivity.java

package com.lp.drawer;

import android.app.Activity;
import android.graphics.drawable.TransitionDrawable;
import android.os.Bundle;
import android.widget.ImageButton;
import android.widget.SlidingDrawer;
import android.widget.SlidingDrawer.OnDrawerCloseListener;
import android.widget.SlidingDrawer.OnDrawerOpenListener;
import android.widget.SlidingDrawer.OnDrawerScrollListener;
import android.widget.TextView;

public class MainActivity extends Activity {

    private SlidingDrawer slidingbar;
    private ImageButton handler;
    private TextView tv;
    private TransitionDrawable td;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        slidingbar = (SlidingDrawer)findViewById(R.id.silidingbar);
        handler = (ImageButton)findViewById(R.id.handler);
        tv = (TextView)findViewById(R.id.tv);
        td = (TransitionDrawable)handler.getDrawable();

        DrawerManager dm = new DrawerManager();
        slidingbar.setOnDrawerOpenListener(dm);
        slidingbar.setOnDrawerCloseListener(dm);
        slidingbar.setOnDrawerScrollListener(dm);

    }

    private class DrawerManager implements OnDrawerScrollListener,OnDrawerOpenListener,OnDrawerCloseListener{

        public void onDrawerOpened() {
            td.reverseTransition(150);
        }

        public void onDrawerClosed() {
            td.reverseTransition(150);
        }

        public void onScrollStarted() {
            tv.setText("开始滚动");
        }

        public void onScrollEnded() {
            tv.setText("结束滚动");
        }


    }
}

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
	<SlidingDrawer
		android:layout_width="fill_parent"
		android:layout_height="fill_parent"
		android:orientation="vertical"
		android:id="@+id/silidingbar"
		android:handle="@+id/handler"
		android:content="@+id/content"
		>
		<ImageButton
			android:layout_width="128dip"
			android:layout_height="128dip"
			android:id="@id/handler"
			android:src="@drawable/handler"
			/>	
		<LinearLayout
			android:layout_width="fill_parent"
			android:layout_height="fill_parent"
			android:id="@id/content"
			>
			<TextView
				android:layout_width="fill_parent"
				android:layout_height="fill_parent"
				android:gravity="center"
				android:textColor="#fe12ed"
				android:textStyle="bold"
				android:textSize="15px"
				android:id="@+id/tv"
				/>	
		</LinearLayout>		
	</SlidingDrawer>
</LinearLayout>

handler.xml

<?xml version="1.0" encoding="utf-8"?>
<transition xmlns:android="http://schemas.android.com/apk/res/android">
	<item android:drawable="@drawable/arrow_up" />
	<item android:drawable="@drawable/arrow_down" />
</transition>

代码不难但是需要注意几点：
1、[color=red]注意xml里面的SlidingDrawer 它里面的handler和content的id 都是"@+id/"，并不是"@id/"，都是新建的id 不是指向的id 而下面的ImageView,linerLayou的id都是指向的[/color]
2、layou:gravity 在父组件里面自己的对齐方式
gravity 如EditText 里面文字的对齐方式