Android 使用 WindowManager 打造悬浮通知

来源：互联网发布：淘宝怎么付钱编辑：程序博客网时间：2024/06/06 19:32

最近项目中遇到使用通知栏的功能，开始使用Notification的时候，发现存在兼容问题，于是换成了
WindowManager ，发现 WindowManager 能够很好的解决问题。
先看下效果图

微信图片_20171212150512.png

以下是详细内容 ps:代码用的Kotlin

首先布局文件

<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools"    android:id="@+id/windowFloatContainer"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:layout_margin="@dimen/layout_middle_margin"    android:clipChildren="false"    android:clipToPadding="false"    android:fitsSystemWindows="true"    app:cardBackgroundColor="@color/orange_bg"    app:cardCornerRadius="10dp"    app:contentPadding="@dimen/layout_middle_padding">    <LinearLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:orientation="vertical">        <android.support.v7.widget.AppCompatTextView            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:gravity="center"            android:lineSpacingExtra="5dp"            android:padding="@dimen/layout_normal_padding"            android:text="实时\n从茶园鲁能领秀城出发到光电园凤凰C座"            android:textColor="@color/white"            android:textSize="@dimen/middle_text_size"            tools:ignore="HardcodedText" />        <FrameLayout            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:layout_marginLeft="@dimen/layout_large_margin"            android:layout_marginRight="@dimen/layout_large_margin">            <android.support.v7.widget.AppCompatTextView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_gravity="center_vertical"                android:textColor="@color/white"                android:padding="@dimen/layout_small_padding"                android:textSize="@dimen/normal_text_size"                android:text="距您:0.86公里"/>            <android.support.v7.widget.AppCompatTextView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_gravity="center_vertical|right"                android:padding="@dimen/layout_small_padding"                android:textColor="@color/white"                android:textSize="@dimen/normal_text_size"                android:text="全程:18.65公里"/>        </FrameLayout>    </LinearLayout></android.support.v7.widget.CardView>

其次在Application中创建 WindowManager.LayoutParams

class App : Application() {    companion object {        private var wmParams: WindowManager.LayoutParams? = null        fun getWindowLayoutParams(): WindowManager.LayoutParams? = wmParams    }    override fun onCreate() {        super.onCreate()        wmParams = WindowManager.LayoutParams(WindowManager.LayoutParams.MATCH_PARENT,                WindowManager.LayoutParams.WRAP_CONTENT, WindowManager.LayoutParams.TYPE_PRIORITY_PHONE,                WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS or WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL, PixelFormat.TRANSLUCENT)    }   ...}

然后在Activity中使用

class MainActivity : BaseActivity() {    private var mWindowManager: WindowManager? = null    private var mWindowParams: WindowManager.LayoutParams? = null    private var floatView: View? = null    override fun getLayoutId(): Int = R.layout.activity_main    override fun initView() {    }    override fun onViewClick() {        super.onViewClick()        RxView.clicks(mainNotifyBtn)                .throttleFirst(2, TimeUnit.SECONDS)                .subscribeBy(onNext = {                    showWindowAlert()                }, onError = {                })        RxView.clicks(mainCancelNotifyBtn)                .throttleFirst(2, TimeUnit.SECONDS)                .subscribeBy(onNext = {                        hideWindowAlert()                }, onError = {                })    }    override fun isSupportBack(): Boolean = false    override fun getToolBarTitle(): String? = "San"    override fun processLogic() {    }    private fun showWindowAlert() {        mWindowManager = applicationContext.getSystemService(Context.WINDOW_SERVICE) as WindowManager        mWindowParams = App.getWindowLayoutParams()        floatView = layoutInflater.inflate(R.layout.ic_window_float, null)//        mWindowParams!!.type = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT//        mWindowParams!!.format = 1//        mWindowParams!!.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE // 不能抢占聚焦点//        mWindowParams!!.flags = mWindowParams!!.flags or WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH//        mWindowParams!!.flags = mWindowParams!!.flags or WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS // 排版不受限制//        mWindowParams!!.flags = mWindowParams!!.flags or WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS ////        mWindowParams!!.alpha = 0F        mWindowParams!!.gravity = Gravity.TOP        mWindowParams!!.x = 0        mWindowParams!!.y = 0        mWindowParams!!.verticalMargin = 0F        mWindowParams!!.horizontalMargin = 15F//        mWindowParams!!.width = floatView!!.layoutParams.width//        mWindowParams!!.height = floatView!!.layoutParams.height        mWindowManager!!.addView(floatView, mWindowParams)    }    private fun hideWindowAlert() {        if (mWindowManager != null)            mWindowManager!!.removeViewImmediate(floatView)    }    override fun onDestroy() {        super.onDestroy()        hideWindowAlert()    }}

可以根据实际功能需求，给FloatView添加动画
按照上面的代码做，功能就能实现了。谢谢！

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