Android控件之SlidingDrawer(滑动式抽屉)
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一、简介
SlidingDrawer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。例:
? <SlidingDrawer
android:id="@+id/slidingDrawer"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:handle="@+id/slidingDrawerButton"
android:content="@+id/content"
android:background="#ffffff">
<Button
android:id="@+id/slidingDrawerButton"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
</Button>
<LinearLayout
android:id="@+id/content"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#ffffff">
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</Button>
<EditText
android:id="@+id/editText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#00ff00">
</EditText>
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello"
android:background="#0000ff"
/>
</LinearLayout>
</SlidingDrawer>
二、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)
三、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
四、完整实例
1.main.xml
SlidingDrawer.java
package SlidingDrawer.com;
<?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"
>
<LinearLayout
android:id="@+id/linearLayout"
android:layout_width="fill_parent"
android:layout_height="100px"
android:background="#0000ff">
</LinearLayout>
<SlidingDrawer
android:id="@+id/slidingDrawer"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:handle="@+id/slidingDrawerButton"
android:content="@+id/content"
android:background="#ffffff">
<Button
android:id="@+id/slidingDrawerButton"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
</Button>
<LinearLayout
android:id="@+id/content"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#ffffff">
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</Button>
<EditText
android:id="@+id/editText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#00ff00">
</EditText>
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello"
android:background="#0000ff"
/>
</LinearLayout>
</SlidingDrawer>
</LinearLayout>
2.
import android.app.Activity;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.widget.LinearLayout;
public class SlidingDrawer extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
android.widget.SlidingDrawer mDrawer;
final LinearLayout mLinearLayout;
mDrawer=(android.widget.SlidingDrawer)findViewById(R.id.slidingDrawer);
mDrawer.open();
mLinearLayout=(LinearLayout)findViewById(R.id.linearLayout);
mDrawer.setOnDrawerOpenListener(new android.widget.SlidingDrawer.OnDrawerOpenListener()
{
public void onDrawerOpened() {
// TODO Auto-generated method stub
LinearLayout.LayoutParams linearParams = (LinearLayout.LayoutParams) mLinearLayout.getLayoutParams();
linearParams.height=100;
mLinearLayout.setLayoutParams(linearParams);
}
});
mDrawer.setOnDrawerCloseListener(new android.widget.SlidingDrawer.OnDrawerCloseListener(){
public void onDrawerClosed() {
// TODO Auto-generated method stub
LinearLayout.LayoutParams linearParams = (LinearLayout.LayoutParams) mLinearLayout.getLayoutParams();
linearParams.height=400;
mLinearLayout.setLayoutParams(linearParams);
}
});
mDrawer.setOnTouchListener(new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
return false;
}
});
}
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