安卓仿微信菜单栏PopWindow

先构建好xml布局文件 用于弹窗的布局文件

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:layout_marginRight="5dp"    android:layout_marginTop="20dp"    android:background="@drawable/popmenu"    android:orientation="vertical">    <LinearLayout        android:id="@+id/ll_popmenu_record"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_marginBottom="8dp"        android:gravity="center_vertical"        android:orientation="horizontal"        android:paddingLeft="10dp">        <ImageView            android:layout_width="25dp"            android:layout_height="25dp"            android:src="@mipmap/add" />        <TextView            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_marginLeft="10dp"            android:gravity="center_vertical"            android:text="记一笔"            android:textColor="@color/fffwhite"            android:textSize="20sp" />    </LinearLayout>    <TextView        android:layout_width="match_parent"        android:layout_height="0.7dp"        android:layout_marginLeft="10dp"        android:layout_marginRight="10dp"        android:background="@color/fffwhite" />    <LinearLayout        android:id="@+id/ll_popmenu_book"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_marginBottom="8dp"        android:layout_marginLeft="10dp"        android:layout_marginTop="8dp"        android:gravity="center_vertical"        android:orientation="horizontal">        <ImageView            android:layout_width="25dp"            android:layout_height="25dp"            android:src="@mipmap/book" />        <TextView            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_marginLeft="10dp"            android:gravity="center_vertical"            android:text="账本切换"            android:textColor="@color/fffwhite"            android:textSize="20sp" />    </LinearLayout>    <TextView        android:layout_width="match_parent"        android:layout_height="0.7dp"        android:layout_marginLeft="10dp"        android:layout_marginRight="10dp"        android:background="@color/fffwhite" />    <LinearLayout        android:id="@+id/ll_popmenu_search"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_marginLeft="10dp"        android:layout_marginTop="8dp"        android:gravity="center_vertical"        android:orientation="horizontal">        <ImageView            android:layout_width="25dp"            android:layout_height="25dp"            android:src="@mipmap/search" />        <TextView            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_marginLeft="10dp"            android:gravity="center_vertical"            android:text="搜索账本"            android:textColor="@color/fffwhite"            android:textSize="20sp" />    </LinearLayout></LinearLayout>

新建TopPopWindow extends PopupWindow。

package views;import android.app.Activity;import android.graphics.drawable.ColorDrawable;import android.view.LayoutInflater;import android.view.View;import android.widget.LinearLayout;import android.widget.PopupWindow;import com.chase.cn.money_of_my.R;/** * Created by Chase on 2017/2/23. */public class TopPopWindow extends PopupWindow {    private View mView;    private LinearLayout ll_popmenu_record,ll_popmenu_book,ll_popmenu_search;     public  TopPopWindow(Activity paramActivity, View.OnClickListener paramOnClickListener,                              int paramInt1, int paramInt2){         mView = LayoutInflater.from(paramActivity).inflate(R.layout.popwindow_topright, null);         ll_popmenu_record = (LinearLayout) mView.findViewById(R.id.ll_popmenu_record);         ll_popmenu_book = (LinearLayout) mView.findViewById(R.id.ll_popmenu_book);         ll_popmenu_search = (LinearLayout) mView.findViewById(R.id.ll_popmenu_search);         if (paramOnClickListener != null){             //设置点击监听             ll_popmenu_record.setOnClickListener(paramOnClickListener);             ll_popmenu_book.setOnClickListener(paramOnClickListener);             ll_popmenu_search.setOnClickListener(paramOnClickListener);             setContentView(mView);             //设置宽度             setWidth(paramInt1);             //设置高度             setHeight(paramInt2);             //设置显示隐藏动画             setAnimationStyle(R.style.AnimTools);             //设置背景透明             setBackgroundDrawable(new ColorDrawable(0));         }     }    }

使用：在自己的MainActivity调用showTopRightPopMenu()。

/**     * 显示右上角popup菜单     */    private void showTopRightPopMenu() {        /**         * 用屏幕宽高计算popwindow的宽高         */        WindowManager wm = this.getWindowManager();        int width = wm.getDefaultDisplay().getWidth();        int height = wm.getDefaultDisplay().getHeight();        int popWidth = width / 2;        int popHeight = height / 3;        if (topPopWindow == null) {            //(activity,onclicklistener,width,height)            topPopWindow = new TopPopWindow(MainActivity.this, this, popWidth, popHeight);            //监听窗口的焦点事件，点击窗口外面则取消显示            topPopWindow.getContentView().setOnFocusChangeListener(new View.OnFocusChangeListener() {                @Override                public void onFocusChange(View v, boolean hasFocus) {                    if (!hasFocus) {                        topPopWindow.dismiss();                    }                }            });            //pop消失时 背景调至原来的亮度            topPopWindow.setOnDismissListener(new PopupWindow.OnDismissListener() {                @Override                public void onDismiss() {                    backgroundAlpaha(MainActivity.this, 1.0f);                }            });        }        //设置默认获取焦点        topPopWindow.setFocusable(true);        //以某个控件的x和y的偏移量位置开始显示窗口        topPopWindow.showAsDropDown(bt_add, 0, 18);        backgroundAlpaha(MainActivity.this, 0.5f);        //如果窗口存在，则更新        topPopWindow.update();    }    /**     * 设置添加屏幕的背景透明度 1.popwindow弹窗用作背景变暗     **/    public void backgroundAlpaha(Activity context, float bgAlpha) {        WindowManager.LayoutParams lp = context.getWindow().getAttributes();        lp.alpha = bgAlpha;        context.getWindow()                .addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);        context.getWindow().setAttributes(lp);    }