Android PopupWindow底部菜单

 

import java.util.Timer; 

import java.util.TimerTask; 

  

import android.app.Activity; 

import android.content.Context; 

import android.os.Bundle; 

import android.os.Handler; 

import android.os.Message; 

import android.view.Gravity; 

import android.view.LayoutInflater; 

import android.view.View; 

import android.view.ViewGroup.LayoutParams; 

import android.widget.PopupWindow; 

  

public class MainActivity extends Activity { 

    private Handler handler = new Handler() { 

        public void handleMessage(Message msg) { 

            switch (msg.arg1) { 

            case 1: 

                showBottomMenu(); 

                break; 

            } 

        } 

    }; 

  

    @Override

    public void onCreate(Bundle savedInstanceState) { 

        super.onCreate(savedInstanceState); 

        setContentView(R.layout.main); 

  

        Timer timer = new Timer(); 

        timer.schedule(new initBottomMenu(), 100); 

    } 

  

    private class initBottomMenu extends TimerTask { 

        @Override

        public void run() { 

            Message msg = new Message(); 

            msg.arg1 = 1; 

            handler.sendMessage(msg); 

        } 

    } 

  

    /** 

     * 显示底部菜单 

     */

    public void showBottomMenu() { 

        LayoutInflater mLayoutInfalter = (LayoutInflater) this

                .getSystemService(LAYOUT_INFLATER_SERVICE); 

        View menuView = mLayoutInfalter.inflate(R.layout.menu, null); 

        PopupWindow mPopupWindow = new PopupWindow(menuView, 

                LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT); 

  

        mPopupWindow.showAtLocation(findViewById(R.id.main), Gravity.BOTTOM, 0, 

                0); 

    } 

}

主界面的布局文件：main.xml

<?xml version="1.0" encoding="utf-8"?> 

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:id="@+id/main" 

    android:orientation="vertical"

    android:layout_width="fill_parent" 

    android:layout_height="fill_parent"> 

    <TextView 

        android:layout_width="fill_parent"

        android:layout_height="wrap_content" 

        android:text="底部菜单实例" 

        /> 

</LinearLayout>

底部菜单的布局文件：menu.xml

<?xml version="1.0" encoding="utf-8"?> 

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent" 

    android:layout_height="fill_parent"

    android:orientation="horizontal" 

    android:background="@drawable/menu_back"> 

    <Button 

        android:id="@+id/menu_ensureButton"

        android:layout_width="160px" 

        android:layout_height="wrap_content"

        android:layout_marginTop="5px" 

        android:text="完成" 

        /> 

    <Button 

        android:id="@+id/menu_cancelButton"

        android:layout_width="fill_parent" 

        android:layout_height="wrap_content"

        android:layout_marginTop="5px" 

        android:text="取消" 

        /> 

</LinearLayout>