解读一个SlidingDrawer的例子
xml的完整代码是：
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" >
//1 这个RelativeLayout是为了效果“高级查询”那个房子效果 <RelativeLayout android:id="@+id/relativeLayout1" android:background="#000000" android:layout_width="fill_parent" android:layout_height="wrap_content" > <TextView android:id="@+id/common_home_page" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_centerVertical="true" android:clickable="true" android:drawableLeft="@drawable/ic_menu_home" android:drawablePadding="5dip" android:gravity="center_vertical" android:text="高级查询" android:textAppearance="?android:attr/textAppearanceMedium" android:textColor="#ffffff" /> </RelativeLayout>
//2 这个开始通过一行行的LinearLayout开始进行分行布局 <LinearLayout android:id="@+id/linearLayout1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@+id/relativeLayout1" android:orientation="vertical" >
//第一行是 EditText+Button <LinearLayout android:id="@+id/linearLayout2" android:layout_width="fill_parent" android:layout_height="wrap_content" android:gravity="center_horizontal" android:orientation="horizontal" android:padding="5dp" > <EditText android:id="@+id/editText" android:layout_width="240dip" android:layout_height="50dip" android:layout_marginRight="5dip" android:layout_weight="1" android:clickable="true" > </EditText> <Button android:id="@+id/button" android:layout_width="69dip" android:layout_height="50dip" android:layout_weight="1" android:background="@drawable/btn_event_search_select" /> </LinearLayout>
//第二行是RadioGroup（RadioButton1+RadioButton2） <LinearLayout android:id="@+id/LinearLayout3" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:weightSum="2" > <RadioGroup android:id="@+id/radioGroup1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <RadioButton android:id="@+id/rbInterestEvent" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:background="@drawable/tab_bg_white_selector" android:button="@null" android:checked="true" android:gravity="center" android:text="最近搜索" android:textAppearance="?android:attr/textAppearanceLarge" /> <RadioButton android:id="@+id/rbRecommend" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:background="@drawable/tab_bg_white_selector" android:button="@null" android:gravity="center" android:text="查看记录" android:textAppearance="?android:attr/textAppearanceLarge" /> </RadioGroup> </LinearLayout>
//第三行是RadioGroup（RadioButton） <LinearLayout android:id="@+id/linearLayout4" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:weightSum="2" > <RadioGroup android:id="@+id/radioGroup2" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <RadioButton android:id="@+id/rbBarFirst" android:layout_width="wrap_content" android:layout_height="5dip" android:layout_weight="1" android:background="@drawable/smile_bar_selector" android:button="@null" android:checked="true" /> <RadioButton android:id="@+id/rbBarSecond" android:layout_width="wrap_content" android:layout_height="5dip" android:layout_weight="1" android:background="@drawable/smile_bar_selector" android:button="@null" /> </RadioGroup> </LinearLayout>
//最后一行是个listView <ListView android:id="@+id/listView" android:layout_width="fill_parent" android:layout_height="300dp" > </ListView> </LinearLayout>
//SlidingDrawer中的布局很清楚一行一行的布局 <SlidingDrawer android:id="@+id/slidingdrawer" android:layout_width="fill_parent" android:layout_height="280dp" android:content="@+id/content" android:handle="@+id/handle" android:animateOnClick="true" android:layout_alignParentBottom="true" android:orientation="vertical" > <TextView android:id="@+id/handle" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_above="@+id/linearLayout5" android:background="@color/advanced_filter_bg" android:clickable="true" android:gravity="center_horizontal" android:padding="5dp" android:text="高级筛选" android:textColor="@color/white_color" android:textSize="25sp" /> <LinearLayout android:id="@+id/content" android:layout_width="fill_parent" android:layout_height="220dp" android:layout_alignParentBottom="true" android:background="@color/white_color" android:orientation="vertical" android:visibility="gone" > <LinearLayout android:id="@+id/LinearLayout6" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_margin="5dp" > <TextView android:id="@+id/TextView01" android:layout_width="wrap_content" android:layout_height="wrap_content" android:padding="5dp" android:paddingRight="50dip" android:text="城市" /> <Button android:id="@+id/button2" android:layout_width="270dp" android:layout_height="wrap_content" android:text="北京" /> </LinearLayout> <LinearLayout android:id="@+id/LinearLayout7" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_margin="5dp" > <TextView android:id="@+id/textView3" android:layout_width="wrap_content" android:layout_height="wrap_content" android:padding="5dp" android:paddingRight="50dip" android:text="时间" /> <Button android:id="@+id/button3" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="2011年11月01日" /> <TextView android:id="@+id/textView4" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="至" /> <Button android:id="@+id/button4" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="2011年11月07日" /> </LinearLayout> <LinearLayout android:id="@+id/LinearLayout8" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_margin="5dp" > <TextView android:id="@+id/textView2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:padding="5dp" android:paddingRight="50dip" android:text="类型" /> <Button android:id="@+id/button5" android:layout_width="270dp" android:layout_height="wrap_content" android:text="骑行 徒步 旅游" /> </LinearLayout> </LinearLayout> </SlidingDrawer> </RelativeLayout>
再来看看程序各个部分是怎么工作的：
java代码: import java.util.ArrayList; import java.util.List; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.View.OnClickListener; import android.widget.BaseAdapter; import android.widget.ListView; import android.widget.RadioButton; import android.widget.SlidingDrawer; import android.widget.TextView; import android.widget.SlidingDrawer.OnDrawerCloseListener; import android.widget.SlidingDrawer.OnDrawerOpenListener; public class AdvancedQueryActivity extends Activity implements OnClickListener { private TextView title,advanced_filter; private RadioButton r1,r2,r3,r4; private LayoutInflater mInflater = null; private boolean state = false; private ListView listView; private List<String> data; private SlidingDrawer mDrawer; @Override protected void onCreate(Bundle arg0) { // TODO Auto-generated method stub super.onCreate(arg0); this.setContentView(R.layout.advanced_query_view); initLayout(); } private void initLayout() { // TODO Auto-generated method stub mInflater=this.getLayoutInflater(); data = new ArrayList<String>(); r1 = (RadioButton)findViewById(R.id.rbInterestEvent); r2 = (RadioButton)findViewById(R.id.rbRecommend); r3 = (RadioButton)findViewById(R.id.rbBarFirst); r4 = (RadioButton)findViewById(R.id.rbBarSecond); r1.setOnClickListener(this); r2.setOnClickListener(this); r3.setOnClickListener(this); r4.setOnClickListener(this); listView = (ListView)findViewById(R.id.listView); listView.setAdapter(new MyAdapter()); advanced_filter = (TextView)findViewById(R.id.handle); advanced_filter.setOnClickListener(this); title=(TextView)findViewById(R.id.common_home_page); title.setOnClickListener(this); title.setText("高级查询"); mDrawer=(SlidingDrawer)findViewById(R.id.slidingdrawer); mDrawer.setOnDrawerOpenListener(new OnDrawerOpenListener() {//抽屉打开时监听public void onDrawerOpened() {}}); // mDrawer.setOnDrawerScrollListener(new OnDrawerScrollListener(){//动态监听 // @Override // public void onScrollEnded() {//结束拖动监听 // advanced_filter.setText("结束拖动"); // } // @Override // public void onScrollStarted() {//开始拖动监听 // advanced_filter.setText("开始拖动"); // } // }); mDrawer.setOnDrawerCloseListener(new OnDrawerCloseListener() {//抽屉关闭监听public void onDrawerClosed() {}});addDataToUI();} private void addDataToUI() { // TODO Auto-generated method stub data.add("1"); data.add("2"); data.add("3"); data.add("4"); data.add("5"); data.add("6"); data.add("7"); data.add("8"); } class MyAdapter extends BaseAdapter { @Override public int getCount() { // TODO Auto-generated method stub return data.size(); } @Override public Object getItem(int position) { // TODO Auto-generated method stub return data.get(position); } @Override public long getItemId(int position) { // TODO Auto-generated method stub return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { // TODO Auto-generated method stub convertView = mInflater.inflate(R.layout.record_item_view, null); return convertView; } } @Override public void onClick(View v) { // TODO Auto-generated method stub switch (v.getId()) { case R.id.common_home_page: break; case R.id.handle: if (state == false) { mDrawer.animateOpen();//以动画的形式展开 state = true; } else { mDrawer.animateClose();//以动画的形式关闭抽屉 state=false; } break; //-----------------------以下为监听单选按钮RadioButton的状态切换--------------------------------- case R.id.rbInterestEvent: r1.setChecked(true); r3.setChecked(true); break; case R.id.rbRecommend: r2.setChecked(true); r4.setChecked(true); break; case R.id.rbBarFirst: r1.setChecked(true); r3.setChecked(true); break; case R.id.rbBarSecond: r2.setChecked(true); r4.setChecked(true); break; } } }
最重要的方法就是
setOnDrawerOpenListener()和setOnDrawerCloseListener()
