Android 实现一个隐私弹窗功能

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/dialogRoot"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/bg_dialog_rounded"
    android:orientation="vertical"
    android:padding="24dp">
    <TextView
        android:id="@+id/tvTitle"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="用户协议和隐私政策"
        android:textColor="#222222"
        android:textSize="18sp"
        android:textStyle="bold"
        android:gravity="center"
        android:layout_marginBottom="16dp"/>
    <TextView
        android:id="@+id/tvContent"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textColor="#444444"
        android:textSize="15sp"
        android:lineSpacingExtra="4dp" />
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_marginTop="24dp"
        android:gravity="center">
        <androidx.appcompat.widget.AppCompatButton
            android:id="@+id/btnExit"
            android:layout_width="0dp"
            android:layout_height="48dp"
            android:layout_weight="1"
            android:text="退出应用"
            android:textColor="#5E5C3F"
            android:background="@drawable/bg_button_outline"
            android:textSize="16sp" />
        <View
            android:layout_width="16dp"
            android:layout_height="0dp" />
        <androidx.appcompat.widget.AppCompatButton
            android:id="@+id/btnAgree"
            android:layout_width="0dp"
            android:layout_height="48dp"
            android:layout_weight="1.5"
            android:text="已阅读并同意"
            android:textColor="#FFFFFF"
            android:background="@drawable/bg_button_primary"
            android:textSize="16sp" />
    </LinearLayout>
</LinearLayout>

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <solid android:color="#FFFFFF"/>
    <corners android:radius="14dp"/>
</shape>

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <solid android:color="#FFFFFF" />
    <stroke android:width="0.5dp" android:color="#5E5C3F" />
    <corners android:radius="8dp" />
</shape>

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <solid android:color="#5E5C3F" />
    <corners android:radius="8dp" />
</shape>

import android.content.Context
import android.graphics.Color
import android.graphics.drawable.ColorDrawable
import android.text.SpannableString
import android.text.Spanned
import android.text.method.LinkMovementMethod
import android.text.style.ClickableSpan
import android.view.LayoutInflater
import android.view.View
import android.widget.Button
import android.widget.TextView
import androidx.appcompat.app.AlertDialog
class PrivacyPolicyDialog(
    private val context: Context,
    private val onAgree: () -> Unit,
    private val onExit: () -> Unit,
    private val onClickUserAgreement: () -> Unit,
    private val onClickPrivacyPolicy: () -> Unit
) {
    fun show() {
        val view = LayoutInflater.from(context).inflate(R.layout.dialog_privacy_policy, null)
        val tvContent = view.findViewById<TextView>(R.id.tvContent)
        val tvTitle = view.findViewById<TextView>(R.id.tvTitle)
        val btnAgree = view.findViewById<Button>(R.id.btnAgree)
        val btnExit = view.findViewById<Button>(R.id.btnExit)
        val content = "在您使用本应用之前，请您务必审慎阅读、充分理解“用户协议”和“隐私政策”各条款内容。详细资料请阅读：《用户协议》和《隐私政策》。"
        val spannable = SpannableString(content)
        val userStart = content.indexOf("《用户协议》")
        val userEnd = userStart + "《用户协议》".length
        val privacyStart = content.indexOf("《隐私政策》")
        val privacyEnd = privacyStart + "《隐私政策》".length
        spannable.setSpan(object : ClickableSpan() {
            override fun onClick(widget: View) {
                onClickUserAgreement()
            }
        }, userStart, userEnd, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
        spannable.setSpan(object : ClickableSpan() {
            override fun onClick(widget: View) {
                onClickPrivacyPolicy()
            }
        }, privacyStart, privacyEnd, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
        tvContent.text = spannable
        tvContent.movementMethod = LinkMovementMethod.getInstance()
        tvContent.highlightColor = Color.TRANSPARENT
        val dialog = AlertDialog.Builder(context)
            .setView(view)
            .setCancelable(false)
            .create()
        dialog.window?.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))
        btnAgree.setOnClickListener {
            onAgree()
            dialog.dismiss()
        }
        btnExit.setOnClickListener {
            onExit()
            dialog.dismiss()
        }
        dialog.show()
    }
}

package com.example.poemapp
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.view.ViewGroup
import android.widget.Button
import android.widget.Toast
import androidx.appcompat.app.AlertDialog
class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        PrivacyPolicyDialog(
            context = this,
            onAgree = {
                Toast.makeText(this, "用户已同意", Toast.LENGTH_SHORT).show()
                // TODO: 记录已同意状态
            },
            onExit = {
                finish()
            },
            onClickUserAgreement = {
                // TODO: 跳转用户协议页面
            },
            onClickPrivacyPolicy = {
                // TODO: 跳转隐私政策页面
            }
        ).show()
    }
}