package com.gearmotion.app.windowmanagermotion;import android.content.Context;import android.graphics.PixelFormat;import android.graphics.Rect;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.Gravity;import android.view.LayoutInflater;import android.view.MotionEvent;import android.view.View;import android.view.ViewGroup;import android.view.WindowManager;import android.widget.Button;public class MainActivity extends AppCompatActivity implements View.OnClickListener, View.OnTouchListener { Button mShowBtn; Button mHideBtn; WindowManager mWm; LayoutInflater mLayoutInflater; View mWindowView; @Override protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);mShowBtn = (Button) this.findViewById(R.id.showbtn);mHideBtn = (Button) this.findViewById(R.id.hidebtn);mShowBtn.setOnClickListener(this);mHideBtn.setOnClickListener(this);init(); } private void init() {mWm = (WindowManager) this.getApplicationContext().getSystemService(Context.WINDOW_SERVICE);mLayoutInflater = LayoutInflater.from(this); } @Override public void onClick(View v) {if (mShowBtn.hashCode() == v.hashCode()) { //显示WindowManager show();}if (mHideBtn.hashCode() == v.hashCode()) { //隐藏windowmanager hide();} } private void show() {mWindowView = mLayoutInflater.inflate(R.layout.item_layout, null);View popView = mWindowView.findViewById(R.id.root);//设置popView的触摸事件,以便点击空白区域的时候使悬浮view消失popView.setOnTouchListener(this);WindowManager.LayoutParams lp = new WindowManager.LayoutParams();//窗口类型同系统弹出框lp.type = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;//响应输入法//lp.flags = WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM;//透明层lp.format = PixelFormat.TRANSPARENT;lp.width = WindowManager.LayoutParams.MATCH_PARENT;lp.height = WindowManager.LayoutParams.MATCH_PARENT;lp.gravity = Gravity.CENTER_VERTICAL;mWm.addView(mWindowView, lp); } private void hide() {if (mWindowView != null && mWindowView.getParent() != null) { mWm.removeView(mWindowView);} } @Override public boolean onTouch(View v, MotionEvent event) {int x = (int) event.getX();int y = (int) event.getY();//获取主view的可视区域Rect globalRect = new Rect();//获取悬浮view的可视区域Rect tmpRect = new Rect();v.getGlobalVisibleRect(globalRect);View child = ((ViewGroup) v).getChildAt(0);child.getHitRect(tmpRect);if (!tmpRect.contains(x, y) && globalRect.contains(x, y)) { hide();}return true; }}activity_main.xml:<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" tools:context=".MainActivity"> <Buttonandroid:id="@+id/showbtn"android:layout_width="match_parent"android:layout_height="50dp"android:gravity="center"android:text="show" /> <Buttonandroid:id="@+id/hidebtn"android:layout_width="match_parent"android:layout_height="50dp"android:gravity="center"android:text="hide" /></LinearLayout>item_layout.xml:
<?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="wrap_content" android:gravity="center" android:id="@+id/root" android:orientation="vertical"> <TextViewandroid:layout_width="match_parent"android:layout_height="50dp"android:text="I am WindowManager layout view"android:textSize="20sp"android:gravity="center"android:layout_gravity="center"android:background="#FFF8DC"android:textColor="#7AC5CD"/></LinearLayout>实现效果如下:

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