一、在themes.xml中添加自定義dialog的樣式

<!--自定義Dialog-->
    <style name="BaseDialog" parent="android:style/Theme.Dialog">
        <!--背景顏色和透明程度-->
        <item name="android:windowBackground">@android:color/transparent</item>
        <!--是否去除標(biāo)題-->
        <item name="android:windowNoTitle">true</item>
        <!--是否去除邊框-->
        <item name="android:windowFrame">@null</item>
        <!--是否浮現(xiàn)在activity之上-->
        <item name="android:windowIsFloating">true</item>
        <!--是否模糊-->
        <item name="android:backgroundDimEnabled">false</item>
    </style>

二鉴象、創(chuàng)建dialog基類(lèi)

import android.app.Dialog
import android.content.Context
import android.os.Bundle
import android.view.Gravity
import android.view.ViewGroup
import com.example.myapplication.R

/**
 * dialog基類(lèi)
 */
abstract class BaseDialog(context: Context) : Dialog(context, R.style.BaseDialog) {
    companion object {
        var currentTime = 0L
    }

    abstract fun layoutResID(): Int

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(layoutResID())
    }

    override fun show() {
        // 避免用戶(hù)快速雙擊重復(fù)show兩次
        if (System.currentTimeMillis() - currentTime > 500) {
            currentTime = System.currentTimeMillis()
            super.show()
            val layoutParams = window?.attributes
            layoutParams?.gravity = Gravity.CENTER
            layoutParams?.width = ViewGroup.LayoutParams.MATCH_PARENT
            layoutParams?.height = ViewGroup.LayoutParams.MATCH_PARENT
            window?.decorView?.setPadding(0, 0, 0, 0)
            window?.attributes = layoutParams
        }
    }
}

三忙菠、創(chuàng)建自定義dialog的布局

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#60000000"
    android:orientation="vertical">

    <LinearLayout
        android:layout_gravity="center"
        android:background="@drawable/shape_dialog"
        android:layout_width="270dp"
        android:layout_height="120dp"
        android:orientation="vertical">

        <TextView
            android:layout_marginTop="25dp"
            android:layout_gravity="center_horizontal"
            android:text="是否全部標(biāo)記為已讀？"
            android:textColor="@color/black"
            android:textSize="16sp"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

        <View
            android:layout_marginTop="26dp"
            android:background="#E6E6E6"
            android:layout_width="match_parent"
            android:layout_height="1dp"/>
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">
            <TextView
                android:id="@+id/tv_cancel"
                android:textSize="16sp"
                android:textColor="@color/black"
                android:gravity="center"
                android:text="取消"
                android:layout_weight="1"
                android:layout_width="0dp"
                android:layout_height="match_parent"/>
            <View
                android:background="#E6E6E6"
                android:layout_width="1dp"
                android:layout_height="match_parent"/>
            <TextView
                android:textSize="16sp"
                android:textColor="@color/black"
                android:gravity="center"
                android:text="確定"
                android:layout_weight="1"
                android:layout_width="0dp"
                android:layout_height="match_parent"/>
        </LinearLayout>
    </LinearLayout>
</FrameLayout>

布局樣式

四纺弊、創(chuàng)建自定義dialog

import android.content.Context
import android.os.Bundle
import com.example.myapplication.base.BaseDialog
import kotlinx.android.synthetic.main.dialog_main.*

class MainDialog(context: Context) : BaseDialog(context) {
    override fun layoutResID(): Int = R.layout.dialog_main

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        tv_cancel.setOnClickListener { dismiss() }
    }
}

五牛欢、在activity中使用自定義dialog

val dialog = MainDialog(context)
dialog.show()