improve install demo for demonstration

app/build.gradle

@@ -35,4 +35,5 @@ dependencies {
     testImplementation 'junit:junit:4.12'
     implementation project(path: ':lib')
 
+    implementation "com.liulishuo.okdownload:okdownload:1.0.7"
 }

app/src/main/AndroidManifest.xml

@@ -2,6 +2,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.wuliang.xapkinstaller">
 
+    <uses-permission android:name="android.permission.INTERNET"/>
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
 

app/src/main/java/com/wuliang/xapkinstaller/MainActivity.kt

@@ -1,58 +1,196 @@
 package com.wuliang.xapkinstaller
 
 import android.Manifest
-import android.content.Context
+import android.annotation.SuppressLint
+import android.app.ProgressDialog
+import android.content.Intent
+import android.content.pm.PackageManager
 import android.os.Build
 import android.os.Bundle
+import android.os.Environment
+import android.provider.Settings
 import android.widget.TextView
+import android.widget.Toast
+import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.app.ActivityCompat
+import com.liulishuo.okdownload.DownloadListener
+import com.liulishuo.okdownload.DownloadTask
+import com.liulishuo.okdownload.core.cause.EndCause
+import com.liulishuo.okdownload.core.cause.ResumeFailedCause
+import com.liulishuo.okdownload.core.listener.DownloadListener1
+import com.liulishuo.okdownload.core.listener.DownloadListener2
+import com.liulishuo.okdownload.core.listener.assist.Listener1Assist
 import com.wuliang.lib.createXapkInstaller
+import java.io.File
+import java.lang.Exception
 import java.util.concurrent.ExecutorService
 import java.util.concurrent.Executors
 
-class MainActivity : AppCompatActivity() {
+private const val PERMISSION_REQUEST_CODE = 99
+private const val ACTION_MANAGE_UNKNOWN_APP_SOURCES_REQUEST_CODE = 120
 
-    private lateinit var installExecutor: ExecutorService
+class MainActivity : AppCompatActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
 
         findViewById<TextView>(R.id.install_tv).setOnClickListener {
-            install()
+            checkAndInstall()
         }
+    }
 
+    private fun checkAndInstall() {
         if (Build.VERSION.SDK_INT >= 26) {//8.0
             //来判断应用是否有权限安装apk
             val installAllowed = packageManager.canRequestPackageInstalls()
             //有权限
             if (installAllowed) {
                 //安装apk
-
+                install()
             } else {
                 //无权限 申请权限
-                ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.REQUEST_INSTALL_PACKAGES, Manifest.permission.WRITE_EXTERNAL_STORAGE),
-                    99)
+                ActivityCompat.requestPermissions(
+                    this,
+                    arrayOf(
+                        Manifest.permission.REQUEST_INSTALL_PACKAGES,
+                        Manifest.permission.WRITE_EXTERNAL_STORAGE
+                    ),
+                    PERMISSION_REQUEST_CODE
+                )
             }
         } else {//8.0以下
             //安装apk
+            install()
+        }
+    }
+
+    override fun onRequestPermissionsResult(
+        requestCode: Int,
+        permissions: Array<out String>,
+        grantResults: IntArray
+    ) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
+
+        if (requestCode != PERMISSION_REQUEST_CODE)
+            return
 
+        grantResults.forEachIndexed { index, grantResult ->
+            if (grantResult != PackageManager.PERMISSION_GRANTED) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                    if (Manifest.permission.REQUEST_INSTALL_PACKAGES == permissions[index]) {
+                        //引导用户去手动开启权限
+                        val intent = Intent(Settings.ACTION_MANAGE_UNKNOWN_APP_SOURCES)
+                        startActivityForResult(
+                            intent,
+                            ACTION_MANAGE_UNKNOWN_APP_SOURCES_REQUEST_CODE
+                        )
+                    }
+                }
+                Toast.makeText(this, "权限不足！", Toast.LENGTH_SHORT).show();
+                return
+            }
         }
 
+        install()
+    }
+
+    @SuppressLint("NewApi")
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+        super.onActivityResult(requestCode, resultCode, data)
+
+        if (requestCode == ACTION_MANAGE_UNKNOWN_APP_SOURCES_REQUEST_CODE) {
+            if (packageManager.canRequestPackageInstalls()) {
+                install()
+            } else {
+                Toast.makeText(this, "权限不足！", Toast.LENGTH_SHORT).show();
+            }
+        }
     }
 
     private fun install() {
+        downloadXapkAndInstall()
+    }
+
+    private fun downloadXapkAndInstall() {
+        val outputFileDirectory = File(
+            Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).absolutePath +
+                    File.separator + "xapk"
+        )
+        if (!outputFileDirectory.exists())
+            outputFileDirectory.mkdir()
 
-        installExecutor = Executors.newSingleThreadExecutor()
-        installExecutor.execute {
-            createXapkInstaller(getXapkFilePath())?.installXapk(this@MainActivity)
+        val outputFileName = "LEGO_CITY.xapk"
+        val outputFile = File(outputFileDirectory.absolutePath + File.separator + outputFileName)
+
+        if (outputFile.exists()) {
+            doInstall(outputFile.absolutePath)
         }
 
+        //TODO this is xapk download url
+        val downloadUrl = ""
+
+        val task = DownloadTask.Builder(
+            downloadUrl,
+            outputFileDirectory
+        )
+            .setFilename(outputFileName)
+            .build()
+
+        val dialog = ProgressDialog(this)
+        dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL)
+        dialog.isIndeterminate = false
+        dialog.setCancelable(false)
+        dialog.max = 100
+        dialog.setTitle("正在下载中...")
+
+        task.enqueue(object : DownloadListener1() {
+            override fun taskStart(task: DownloadTask, model: Listener1Assist.Listener1Model) {
+                dialog.show()
+            }
+
+            override fun progress(task: DownloadTask, currentOffset: Long, totalLength: Long) {
+                dialog.progress = ((currentOffset / totalLength) * dialog.max).toInt()
+            }
+
+            override fun taskEnd(
+                task: DownloadTask,
+                cause: EndCause,
+                realCause: Exception?,
+                model: Listener1Assist.Listener1Model
+            ) {
+                dialog.dismiss()
+                Toast.makeText(this@MainActivity, "下载完成，开始安装！", Toast.LENGTH_SHORT).show();
+
+                doInstall(outputFile.absolutePath)
+            }
+
+            override fun retry(task: DownloadTask, cause: ResumeFailedCause) {
+            }
+
+            override fun connected(
+                task: DownloadTask,
+                blockCount: Int,
+                currentOffset: Long,
+                totalLength: Long
+            ) {
+            }
+
+        })
     }
 
-    private fun getXapkFilePath(): String {
-        return ""
+    private fun doInstall(xapkFilePath: String) {
+        val xapkInstaller = createXapkInstaller(xapkFilePath)
+
+        if (xapkInstaller == null) {
+            Toast.makeText(this, "安装xapk失败！", Toast.LENGTH_SHORT).show();
+        } else {
+            val installExecutor = Executors.newSingleThreadExecutor()
+            installExecutor.execute {
+                xapkInstaller.installXapk(this@MainActivity)
+            }
+        }
     }
 
 }

app/src/main/res/layout/activity_main.xml

@@ -6,11 +6,11 @@
     android:layout_height="match_parent"
     tools:context=".MainActivity">
 
-    <TextView
+    <Button
         android:id="@+id/install_tv"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:text="安装包含多个apk的xapk"
+        android:text="下载安装包含多个apk的xapk"
         android:textSize="16dp"
         android:textColor="#000000"
         android:layout_gravity="center" />