Android WebView（腾讯TBS）

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Android WebView（TBS）

集成TBS

自带的webview使用起来很多网页不兼容，有很多坑，这里推荐使用TBS，也就是X5内核。

https://x5.tencent.com/tbs/sdk.html

接入文档：

https://x5.tencent.com/docs/access.html

SDK接入

jar包方式集成 您可将官网下载的jar包复制到您的App的libs目录，并且通过Add As Library的方式集成TBS SDK

Gradle方式集成 您可以在使用SDK的模块的dependencies中添加引用进行集成：

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api 'com.tencent.tbs:tbssdk:44286'

kts

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api("com.tencent.tbs:tbssdk:44286")

使用到的网址 如果设备有防火墙 需要把下面的地址加入白名单，否则无法下载X5内核。

soft.imtt.qq.com

wss.tim.qq.com

log.tbs.qq.com

cfg.imtt.qq.com

tbs.imtt.qq.com

cdntips.net

tcdnos.com

混淆配置

为了保障X5功能的正常使用，您需要在您的proguard-rules.pro文件中添加如下配置：

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-dontwarn dalvik.**
-dontwarn com.tencent.smtt.**

-keep class com.tencent.smtt.** {
    *;
}

-keep class com.tencent.tbs.** {
    *;
}

添加权限和服务

在您的AndroidManifest.xml增加如下权限：

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<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<!-- 硬件加速对X5视频播放有利，建议开启 -->
<uses-permission android:name="android.permission.GET_TASKS" />

在AndroidManifest.xml中增加内核首次加载时优化Service声明。

该Service仅在TBS内核首次Dex加载时触发并执行dex2oat任务，任务完成后自动结束。

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<service
         android:name="com.tencent.smtt.export.external.DexClassLoaderProviderService"
         android:label="dexopt"
         android:process=":dexopt" />

安装TBS内核

官方下载

Application的onCreate中进行初始化

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import android.content.Context
import android.util.Log
import com.tencent.smtt.export.external.TbsCoreSettings
import com.tencent.smtt.sdk.QbSdk
import com.tencent.smtt.sdk.TbsDownloader
import com.tencent.smtt.sdk.TbsListener

object TBSUtils {
    var isUseX5 = false
    fun initTBS(conntext: Context) {
        QbSdk.setDownloadWithoutWifi(true)
        val map = HashMap<String, Any>()
        map[TbsCoreSettings.TBS_SETTINGS_USE_PRIVATE_CLASSLOADER] = true
        map[TbsCoreSettings.TBS_SETTINGS_USE_SPEEDY_CLASSLOADER] = true
        map[TbsCoreSettings.TBS_SETTINGS_USE_DEXLOADER_SERVICE] = true
        QbSdk.initTbsSettings(map)
        QbSdk.setTbsListener(
            object : TbsListener {
                override fun onDownloadProgress(progress: Int) {
                    Log.i("TBS_X5", "onDownloadProgress -->下载X5内核进度：$progress")
                }

                override fun onDownloadFinish(progress: Int) {
                    Log.i("TBS_X5", "onDownloadFinish -->下载X5内核完成：$progress")
                }

                override fun onInstallFinish(progress: Int) {
                    Log.i("TBS_X5", "onInstallFinish -->安装X5内核完成")
                    msgCallback?.let {
                        it(true, "安装内核完成请重启应用")
                    }

                    GlobalScope.launch {
                        delay(10000)
                        withContext(Dispatchers.Main) {
                            restartApp(activity)
                        }
                    }
                }
            }
        )


        QbSdk.initX5Environment(conntext, object : QbSdk.PreInitCallback {
            override fun onCoreInitFinished() {
                // 内核初始化完成，可能为X5内核，也可能为系统内核
                Log.i("TBS_X5", "内核初始化完成")
            }

            /**
             * 预初始化结束
             * 由于X5内核体积较大，需要依赖网络动态下发，所以当内核不存在的时候，默认会回调false，此时将会使用系统内核代替
             * @param isX5 是否使用X5内核
             */
            override fun onViewInitFinished(isX5: Boolean) {
                Log.i("TBS_X5", "isX5: $isX5")
                isUseX5 = isX5
            }
        })
    }
    
    fun restartApp(activity: Activity) {
        // 获取当前应用程序的包名
        val packageName: String = activity.getPackageName()

        // 创建一个 Intent 对象，用于重新启动应用程序
        val intent: Intent? = activity.getBaseContext().getPackageManager().getLaunchIntentForPackage(packageName)
        intent?.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
        intent?.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
        // 重新启动应用程序
        intent?.let { activity.startActivity(intent) }

        // 关闭当前的 Activity
        activity.finish()
    }
}

注意

不要在onViewInitFinished中自己调用下载，会和本身的下载冲突，导致下载失败。

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override fun onViewInitFinished(isX5: Boolean) {
    Log.i("TBS_X5", "isX5: $isX5")
    isUseX5 = isX5
    if (!isX5) {
        TbsDownloader.startDownload(conntext);
    }
}

使用本地文件

src/main下添加assets文件夹

文件夹中放入x5.tbs文件

Kotlin

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import android.content.Context
import android.os.Environment
import android.util.Log
import com.tencent.smtt.export.external.TbsCoreSettings
import com.tencent.smtt.sdk.QbSdk
import com.tencent.smtt.sdk.TbsListener
import kotlinx.coroutines.DelicateCoroutinesApi
import java.io.File
import java.io.FileOutputStream


object TBSUtils {
    var isUseX5 = false
    var TAG = "TBS_X5"

    var msgCallback: ((show: Boolean, msg: String) -> Unit)? = null
    @OptIn(DelicateCoroutinesApi::class)
    fun initTBS(context: Context) {
        val canLoadX5 = QbSdk.canLoadX5(context)
        Log.i(TAG, "canLoadX5:$canLoadX5")
        if (!canLoadX5) {
            val appSavePath = getAppSavePath(context, "x5.tbs")
            Log.i(TAG, "initTBS: appSavePath:$appSavePath")
            copyFilesFassets(context, "x5.tbs", appSavePath)
            QbSdk.reset(context);
            QbSdk.installLocalTbsCore(context, 46281, appSavePath);
        }
        QbSdk.setDownloadWithoutWifi(true)
        val map = HashMap<String, Any>()
        map[TbsCoreSettings.TBS_SETTINGS_USE_PRIVATE_CLASSLOADER] = true
        map[TbsCoreSettings.TBS_SETTINGS_USE_SPEEDY_CLASSLOADER] = true
        map[TbsCoreSettings.TBS_SETTINGS_USE_DEXLOADER_SERVICE] = true
        QbSdk.initTbsSettings(map)
        QbSdk.setTbsListener(
            object : TbsListener {
                override fun onDownloadProgress(progress: Int) {
                    Log.i("TBS_X5", "onDownloadProgress -->下载X5内核进度：$progress")
                    msgCallback?.let {
                        it(true, "下载内核进度：$progress%")
                    }
                }

                override fun onDownloadFinish(progress: Int) {
                    Log.i("TBS_X5", "onDownloadFinish -->下载X5内核完成：$progress")
                    if (progress == 100) {
                        msgCallback?.let {
                            it(true, "下载内核成功")
                        }
                    } 
                }

                override fun onInstallFinish(progress: Int) {
                    Log.i("TBS_X5", "onInstallFinish -->安装X5内核完成")
                    msgCallback?.let {
                        it(true, "安装极速内核完成")
                    }
                }
            }
        )


        QbSdk.initX5Environment(context, object : QbSdk.PreInitCallback {
            override fun onCoreInitFinished() {
                // 内核初始化完成，可能为X5内核，也可能为系统内核
                Log.i("TBS_X5", "内核初始化完成")
            }

            /**
             * 预初始化结束
             * 由于X5内核体积较大，需要依赖网络动态下发，所以当内核不存在的时候，默认会回调false，此时将会使用系统内核代替
             * @param isX5 是否使用X5内核
             */
            override fun onViewInitFinished(isX5: Boolean) {
                Log.i("TBS_X5", "isX5: $isX5")
                isUseX5 = isX5
                msgCallback?.let {
                    it(false, "")
                }
            }
        })
    }

    private fun copyFilesFassets(context: Context, oldPath: String, newPath: String) {
        try {
            val fileNames = context.assets.list(oldPath) //获取assets目录下的所有文件及目录名
            if (fileNames!!.isNotEmpty()) { //如果是目录
                val file = File(newPath)
                file.mkdirs() //如果文件夹不存在，则递归
                for (fileName in fileNames) {
                    copyFilesFassets(context, "$oldPath/$fileName", "$newPath/$fileName")
                }
            } else { //如果是文件
                val inputStream = context.assets.open(oldPath)
                val fos = FileOutputStream(File(newPath))
                val buffer = ByteArray(1024)
                var byteCount: Int
                while (inputStream.read(buffer).also { byteCount = it } != -1) { //循环从输入流读取 buffer字节
                    fos.write(buffer, 0, byteCount) //将读取的输入流写入到输出流
                }
                fos.flush() //刷新缓冲区
                inputStream.close()
                fos.close()
            }
        } catch (e: Exception) {
            e.printStackTrace()
        }
    }

    private fun getFilePath(context: Context, dir: String): String {
        //判断外部存储是否可用
        var directoryPath: String = if (Environment.MEDIA_MOUNTED == Environment.getExternalStorageState()) {
            context.getExternalFilesDir(dir)!!.absolutePath
        } else { //没外部存储就使用内部存储
            context.filesDir.toString() + File.separator + dir
        }
        val file = File(directoryPath)
        if (!file.exists()) { //判断文件目录是否存在
            file.mkdirs()
        }
        return directoryPath
    }

    private fun getAppSavePath(context: Context, appname: String): String {
        val folderName = getFilePath(context, "app")
        return folderName + File.separator + appname
    }
}

Java

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import android.content.Context;
import android.os.Environment;
import android.util.Log;

import com.tencent.smtt.export.external.TbsCoreSettings;
import com.tencent.smtt.sdk.QbSdk;
import com.tencent.smtt.sdk.TbsListener;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;

public class TBSUtils {

    public static boolean isUseX5 = false;
    public static final String TAG = "TBS_X5";

    // 回调接口定义
    public interface MsgCallback {
        void onMessage(boolean show, String msg);
    }

    private static MsgCallback msgCallback;

    public static void setMsgCallback(MsgCallback callback) {
        msgCallback = callback;
    }

    public static void initTBS(Context context) {
        boolean canLoadX5 = QbSdk.canLoadX5(context);
        Log.i(TAG, "canLoadX5:" + canLoadX5);

        if (!canLoadX5) {
            String appSavePath = getAppSavePath(context, "x5.tbs");
            Log.i(TAG, "initTBS: appSavePath:" + appSavePath);
            copyFilesFassets(context, "x5.tbs", appSavePath);
            QbSdk.reset(context);
            QbSdk.installLocalTbsCore(context, 46281, appSavePath);
        }

        QbSdk.setDownloadWithoutWifi(true);

        Map<String, Object> map = new HashMap<>();
        map.put(TbsCoreSettings.TBS_SETTINGS_USE_PRIVATE_CLASSLOADER, true);
        map.put(TbsCoreSettings.TBS_SETTINGS_USE_SPEEDY_CLASSLOADER, true);
        map.put(TbsCoreSettings.TBS_SETTINGS_USE_DEXLOADER_SERVICE, true);
        QbSdk.initTbsSettings(map);

        QbSdk.setTbsListener(new TbsListener() {
            @Override
            public void onDownloadProgress(int progress) {
                Log.i("TBS_X5", "onDownloadProgress -->下载X5内核进度：" + progress);
                if (msgCallback != null) {
                    msgCallback.onMessage(true, "下载内核进度：" + progress + "%");
                }
            }

            @Override
            public void onDownloadFinish(int progress) {
                Log.i("TBS_X5", "onDownloadFinish -->下载X5内核完成：" + progress);
                if (progress == 100 && msgCallback != null) {
                    msgCallback.onMessage(true, "下载内核成功");
                }
            }

            @Override
            public void onInstallFinish(int progress) {
                Log.i("TBS_X5", "onInstallFinish -->安装X5内核完成");
                if (msgCallback != null) {
                    msgCallback.onMessage(true, "安装极速内核完成");
                }
            }
        });

        QbSdk.initX5Environment(context, new QbSdk.PreInitCallback() {
            @Override
            public void onCoreInitFinished() {
                Log.i("TBS_X5", "内核初始化完成");
            }

            @Override
            public void onViewInitFinished(boolean isX5) {
                Log.i("TBS_X5", "isX5: " + isX5);
                isUseX5 = isX5;
                if (msgCallback != null) {
                    msgCallback.onMessage(false, "");
                }
            }
        });
    }

    private static void copyFilesFassets(Context context, String oldPath, String newPath) {
        try {
            String[] fileNames = context.getAssets().list(oldPath);
            if (fileNames != null && fileNames.length > 0) {
                // 是目录
                File dir = new File(newPath);
                if (!dir.exists()) {
                    dir.mkdirs();
                }
                for (String fileName : fileNames) {
                    copyFilesFassets(context, oldPath + "/" + fileName, newPath + "/" + fileName);
                }
            } else {
                // 是文件
                InputStream inputStream = context.getAssets().open(oldPath);
                File newFile = new File(newPath);
                File parent = newFile.getParentFile();
                if (parent != null && !parent.exists()) {
                    parent.mkdirs();
                }
                FileOutputStream fos = new FileOutputStream(newFile);
                byte[] buffer = new byte[1024];
                int byteCount;
                while ((byteCount = inputStream.read(buffer)) != -1) {
                    fos.write(buffer, 0, byteCount);
                }
                fos.flush();
                fos.close();
                inputStream.close();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static String getFilePath(Context context, String dir) {
        String directoryPath;
        if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {
            File externalDir = context.getExternalFilesDir(dir);
            if (externalDir != null) {
                directoryPath = externalDir.getAbsolutePath();
            } else {
                // fallback to internal storage
                directoryPath = context.getFilesDir() + File.separator + dir;
            }
        } else {
            directoryPath = context.getFilesDir() + File.separator + dir;
        }

        File file = new File(directoryPath);
        if (!file.exists()) {
            file.mkdirs();
        }
        return directoryPath;
    }

    private static String getAppSavePath(Context context, String appName) {
        String folderName = getFilePath(context, "app");
        return folderName + File.separator + appName;
    }
}

其中复制的目标位置是

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/sdcard/Android/data/com.xhkjedu.xh_control_browser/files/app/x5.tbs

使用自己的下载地址

默认使用官方下载，失败再使用自己的镜像。

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import android.app.AlarmManager
import android.app.PendingIntent
import android.content.Context
import android.content.Intent
import android.os.Environment
import android.util.Log
import com.billbook.lib.downloader.Download
import com.billbook.lib.downloader.Downloader
import com.tencent.smtt.export.external.TbsCoreSettings
import com.tencent.smtt.sdk.QbSdk
import com.tencent.smtt.sdk.TbsListener
import kotlinx.coroutines.DelicateCoroutinesApi
import java.io.File


object TBSUtils {
    var isUseX5 = false
    var TAG = "TBS_X5"
    var tbsDownloadUrl = "https://xxx.oss-cn-huhehaote.aliyuncs.com/appmanager/tbscore/1/1/x5.tbs.apk"
    var msgCallback: ((show: Boolean, msg: String) -> Unit)? = null

    @OptIn(DelicateCoroutinesApi::class)
    fun initTBS(context: Context) {
        QbSdk.setDownloadWithoutWifi(true)
        QbSdk.setOnlyDownload(false)
        val map = HashMap<String, Any>()
        map[TbsCoreSettings.TBS_SETTINGS_USE_PRIVATE_CLASSLOADER] = true
        map[TbsCoreSettings.TBS_SETTINGS_USE_SPEEDY_CLASSLOADER] = true
        map[TbsCoreSettings.TBS_SETTINGS_USE_DEXLOADER_SERVICE] = true
        QbSdk.initTbsSettings(map)
        QbSdk.setTbsListener(
            object : TbsListener {
                override fun onDownloadProgress(progress: Int) {
                    Log.i("TBS_X5", "onDownloadProgress -->下载X5内核进度：$progress")
                    msgCallback?.let {
                        it(true, "下载内核进度：$progress%")
                    }
                }

                override fun onDownloadFinish(progress: Int) {
                    Log.i("TBS_X5", "onDownloadFinish -->下载X5内核完成：$progress")
                    if (progress == 100) {
                        msgCallback?.let {
                            it(true, "下载内核成功")
                        }
                    }
                }

                override fun onInstallFinish(progress: Int) {
                    Log.i("TBS_X5", "onInstallFinish -->安装X5内核完成")
                    msgCallback?.let {
                        it(true, "安装极速内核完成")
                        reStartApp(context)
                    }
                }
            }
        )


        QbSdk.initX5Environment(context, object : QbSdk.PreInitCallback {
            override fun onCoreInitFinished() {
                // 内核初始化完成，可能为X5内核，也可能为系统内核
                Log.i("TBS_X5", "内核初始化完成")
            }

            /**
             * 预初始化结束
             * 由于X5内核体积较大，需要依赖网络动态下发，所以当内核不存在的时候，默认会回调false，此时将会使用系统内核代替
             * @param isX5 是否使用X5内核
             */
            override fun onViewInitFinished(isX5: Boolean) {
                Log.i("TBS_X5", "isX5: $isX5")
                isUseX5 = isX5
                msgCallback?.let {
                    it(false, "")
                }
                if(!isX5){
                    downloadTbsCore(context)
                }
            }
        })
    }

    private fun downloadTbsCore(context: Context) {
        val appSavePath = getAppSavePath(context, "x5.tbs")
        val downloader = Downloader.Builder().build()
        val request = Download.Request.Builder()
            .url(tbsDownloadUrl)
            .into(appSavePath) // or into(file)
            .build()
        val call = downloader.newCall(request)
        call.enqueue(object : Download.Callback {
            override fun onStart(call: Download.Call) {

            }

            override fun onSuccess(call: Download.Call, response: Download.Response) {
                val canLoadX5 = QbSdk.canLoadX5(context)
                Log.i(TAG, "canLoadX5:$canLoadX5")
                if (!canLoadX5) {
                    QbSdk.reset(context);
                    QbSdk.installLocalTbsCore(context, 46281, appSavePath);
                }
            }

            override fun onFailure(call: Download.Call, response: Download.Response) {

            }

            override fun onLoading(call: Download.Call, current: Long, total: Long) {
                val progress = current * 100 / total
                Log.i(TAG, "镜像下载 -->下载X5内核完成：$progress")
                msgCallback?.let {
                    it(true, "下载内核进度：${progress}%")
                }
            }
        })
    }

    private fun getFilePath(context: Context, dir: String): String {
        //判断外部存储是否可用
        val directoryPath: String = if (Environment.MEDIA_MOUNTED == Environment.getExternalStorageState()) {
            context.getExternalFilesDir(dir)!!.absolutePath
        } else { //没外部存储就使用内部存储
            context.filesDir.toString() + File.separator + dir
        }
        val file = File(directoryPath)
        if (!file.exists()) { //判断文件目录是否存在
            file.mkdirs()
        }
        return directoryPath
    }

    private fun getAppSavePath(context: Context, appname: String): String {
        val folderName = getFilePath(context, "app")
        return folderName + File.separator + appname
    }

    fun reStartApp(context: Context){
        val intent: Intent? = context.getPackageManager().getLaunchIntentForPackage(context.getPackageName())
        val pendingIntent = PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT or PendingIntent.FLAG_IMMUTABLE)
        val alarmManager = context.getSystemService(Context.ALARM_SERVICE) as AlarmManager?
        alarmManager!![AlarmManager.RTC, System.currentTimeMillis() + 1000] = pendingIntent
        System.exit(0)
    }
}

TBS下载失败

TBS是分发的，也就是你调用下载，也不一定下载，这就导致内核安装变得让人难以捉摸。

这里建议下载成功的时候，不要重启找到下载的内核复制出来，千万不要重启，重启自动安装就会把下载的删除。

下载目录

假如我的APP的包名是com.xhkjedu.xh_control_browser

下载成功后会在下面的目录中产生一个x5.tbs文件

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/data/data/com.xhkjedu.xh_control_browser/app_tbs_64/core_private

本地安装

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val canLoadX5 = QbSdk.canLoadX5(context)
Log.i(TAG, "canLoadX5:$canLoadX5")
if (!canLoadX5) {
    val appSavePath = getAppSavePath(context, "x5.tbs")
    Log.i(TAG, "initTBS: appSavePath:$appSavePath")
    copyFilesFassets(context, "x5.tbs", appSavePath)
    QbSdk.reset(context);
    QbSdk.installLocalTbsCore(context, 46281, appSavePath);
}

引用的

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api("com.tencent.tbs:tbssdk:44286")

实际下载的是46281版本的x5.tbs

百度网盘下载x5.tbs

链接：https://pan.baidu.com/s/1Ly-ZQxv2nLtFG4txDic0Wg
提取码：psvm

重启APP

安装内核后重启才生效

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fun reStartApp(context: Context){
    val intent: Intent? = context.getPackageManager().getLaunchIntentForPackage(context.getPackageName())
    val pendingIntent = PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT or PendingIntent.FLAG_IMMUTABLE)
    val alarmManager = context.getSystemService(Context.ALARM_SERVICE) as AlarmManager?
    alarmManager!![AlarmManager.RTC, System.currentTimeMillis() + 1000] = pendingIntent
    System.exit(0)
}

方式2

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fun reStartApp2(){
    try {
        Runtime.getRuntime().exec("am start -n com.xhkjedu.xh_control_browser/.MainActivity")
        Process.killProcess(Process.myPid())
    } catch (e: IOException) {
        e.printStackTrace()
    }
}

退出到主Launcher

我们应用的Activity都退出后，应用本身不一定退出，这是Android本身方便下次快速启动导致的。

但是TBS有时必须重启应用才能生效，但是直接退出应用，在管控平板上没有退出到上一个应用中，所以这里退出到主Launcher，再结束本应用。

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override fun onBackPressed() {
    super.onBackPressed()
    if(!TBSUtils.isUseX5){
        val intent = Intent(Intent.ACTION_MAIN)
        intent.addCategory(Intent.CATEGORY_HOME)
        startActivity(intent)
        System.exit(0)
    }
}

测试是否生效

在没有自定义UA的情况下，使用您的app打开网页

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http://soft.imtt.qq.com/browser/tes/feedback.html

显示000000表示加载的是系统内核，显示大于零的数字表示加载了x5内核（该数字是x5内核版本号）

替换

包名替换

将源码和XML里的系统包和类替换为SDK里的包和类，具体对应如下：

大部分是把android.webkit替换为com.tencent.smtt.sdk

具体表格

系统内核 SDK内核
android.webkit.ConsoleMessage com.tencent.smtt.export.external.interfaces.ConsoleMessage
android.webkit.CacheManager com.tencent.smtt.sdk.CacheManager(deprecated)
android.webkit.CookieManager com.tencent.smtt.sdk.CookieManager
android.webkit.CookieSyncManager com.tencent.smtt.sdk.CookieSyncManager
android.webkit.CustomViewCallback com.tencent.smtt.export.external.interfaces.IX5WebChromeClient.CustomViewCallback
android.webkit.DownloadListener com.tencent.smtt.sdk.DownloadListener
android.webkit.GeolocationPermissions com.tencent.smtt.export.external.interfaces.GeolocationPermissionsCallback
android.webkit.HttpAuthHandler com.tencent.smtt.export.external.interfaces.HttpAuthHandler
android.webkit.JsPromptResult com.tencent.smtt.export.external.interfaces.JsPromptResult
android.webkit.JsResult com.tencent.smtt.export.external.interfaces.JsResult
android.webkit.SslErrorHandler com.tencent.smtt.export.external.interfaces.SslErrorHandler
android.webkit.ValueCallback com.tencent.smtt.sdk.ValueCallback
android.webkit.WebBackForwardList com.tencent.smtt.sdk.WebBackForwardList
android.webkit.WebChromeClient com.tencent.smtt.sdk.WebChromeClient
android.webkit.WebHistoryItem com.tencent.smtt.sdk.WebHistoryItem
android.webkit.WebIconDatabase com.tencent.smtt.sdk.WebIconDatabase
android.webkit.WebResourceResponse com.tencent.smtt.export.external.interfaces.WebResourceResponse
android.webkit.WebSettings com.tencent.smtt.sdk.WebSettings
android.webkit.WebSettings.LayoutAlgorithm com.tencent.smtt.sdk.WebSettings.LayoutAlgorithm
android.webkit.WebStorage com.tencent.smtt.sdk.WebStorage
android.webkit.WebView com.tencent.smtt.sdk.WebView
android.webkit.WebViewClient com.tencent.smtt.sdk.WebViewClient

XML替换

布局xml里的声明也需要替换，例如：

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<com.tencent.smtt.sdk.WebView
android:id="@+id/mWebView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingLeft="5dp"
android:paddingRight="5dp" />

调用

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@SuppressLint("SetJavaScriptEnabled")
private fun loadUrl(url: String) {
  val webSettings = mWebView.getSettings();
  webSettings.setJavaScriptEnabled(true);
  webSettings.setJavaScriptCanOpenWindowsAutomatically(true);
  webSettings.setUseWideViewPort(true);//关键点
  webSettings.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.SINGLE_COLUMN);
  webSettings.setDisplayZoomControls(false);
  webSettings.setJavaScriptEnabled(true); // 设置支持javascript脚本
  webSettings.setAllowFileAccess(true); // 允许访问文件
  webSettings.setBuiltInZoomControls(true); // 设置显示缩放按钮
  webSettings.setSupportZoom(true); // 支持缩放
  webSettings.setLoadWithOverviewMode(true);
  webSettings.setMixedContentMode(WebSettings.LOAD_NORMAL);
  // webSettings.setUserAgentString("Microsoft Edge");
  webSettings.setDomStorageEnabled(true);//网页视频播放器才能正常加载
  webSettings.setGeolocationEnabled(true);
  webSettings.setAppCacheMaxSize(Long.MAX_VALUE);
  webSettings.setPluginState(WebSettings.PluginState.ON_DEMAND);
  webSettings.setCacheMode(WebSettings.LOAD_DEFAULT);

  try {
    mWebView.getSettingsExtension().setContentCacheEnable(true);
  } catch (e: Exception) {

  }
  val jsstr = AndroidFileUtil.getFromAssets(this, "m_inject.js")
  mWebView.setWebChromeClient(object : WebChromeClient() {
    override fun onProgressChanged(p0: WebView?, p1: Int) {
      super.onProgressChanged(p0, p1)
      Log.e(TAG, "页面加载" + p1)
      mWebView.evaluateJavascript(jsstr, object : ValueCallback<String> {
        override fun onReceiveValue(p0: String?) {
          p0?.let { Log.e(TAG, it) }
        }
      })
    }
  });

  //mWebView.setWebViewClient(WebViewClient())

  mWebView.setWebViewClient(object : WebViewClient() {
    override fun shouldOverrideUrlLoading(
      view: WebView?,
      request: WebResourceRequest?
    ): Boolean {
      view?.loadUrl(request?.url.toString())
      return true
    }
  });

  mWebView.loadUrl(url)
}

override fun onDestroy() {
  if (mWebView != null) {
    mWebView.destroy()
  }
  super.onDestroy()
}

override fun onBackPressed() {
  if (mWebView.canGoBack()) {
    mWebView.goBack();
  } else {
    super.onBackPressed()
  }
}

JS注入

src/main下添加assets文件夹

添加m_inject.js文件

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var dom = document.getElementById("menu-btn");
if (dom) {
  dom.style.display = "none";
}

var header = document.getElementsByClassName("top-menu-basic");
if (header) {
  header[0].style.width = "100%";
}

var back = document.getElementsByClassName("top3-back");
if (back) {
  var back_item = back[0];
  back_item.onclick = function (event) {
    history.back(-1);
    event.preventDefault();
  };
}

工具类

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import android.content.Context;

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class AndroidFileUtil {

    /**
     * 从Raw文件中读取
     *
     * @param mContext
     * @param id
     * @return
     */
    public static String getFromRaw(Context mContext, int id) {
        try {
            InputStreamReader inputReader = new InputStreamReader(mContext.getResources().openRawResource(id));
            BufferedReader bufReader = new BufferedReader(inputReader);
            String line = "";
            StringBuilder Result = new StringBuilder();
            while ((line = bufReader.readLine()) != null)
                Result.append(line);
            return Result.toString();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return "";
    }

    /**
     * 从assets读取
     *
     * @param mContext
     * @param fileName
     * @return
     */
    public static String getFromAssets(Context mContext, String fileName) {
        try {
            InputStreamReader inputReader = new InputStreamReader(mContext.getResources().getAssets().open(fileName));
            BufferedReader bufReader = new BufferedReader(inputReader);
            String line = "";
            StringBuilder Result = new StringBuilder();
            while ((line = bufReader.readLine()) != null)
                Result.append(line);
            return Result.toString();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return "";
    }
}

调用

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val jsstr = AndroidFileUtil.getFromAssets(this, "m_inject.js")
mWebView.evaluateJavascript(jsstr, object : ValueCallback<String> {
    override fun onReceiveValue(p0: String?) {
        p0?.let { Log.e(TAG, it) }
    }
})

我们可以在下面的回调中调用注入方法

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mWebView.setWebChromeClient(object : WebChromeClient() {
    override fun onProgressChanged(p0: WebView?, p1: Int) {
        super.onProgressChanged(p0, p1)
        Log.e(TAG, "页面加载" + p1)
        if(p1 == 100){

        }
    }
});


mWebView.setWebViewClient(object : WebViewClient() {
    override fun onPageFinished(webView: WebView?, s: String?) {
        Log.e(TAG, "页面加载完成")
        super.onPageFinished(webView, s)

    }
})

返回上一页

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override fun onBackPressed() {
    if (mWebView.canGoBack()){
        mWebView.goBack();
    }else{
        super.onBackPressed()
    }
}

申请权限

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private val REQUEST_EXTERNAL_STORAGE = 1
private val PERMISSIONS_STORAGE = arrayOf(
    "android.permission.READ_EXTERNAL_STORAGE",
    "android.permission.WRITE_EXTERNAL_STORAGE",
    "android.permission.READ_PHONE_STATE"
)


fun verifyStoragePermissions(activity: Activity?) {
    try {
        //检测是否有写的权限
        val permission = ActivityCompat.checkSelfPermission(
            activity!!,
            "android.permission.WRITE_EXTERNAL_STORAGE"
        )
        if (permission != PackageManager.PERMISSION_GRANTED) {
            // 没有写的权限，去申请写的权限，会弹出对话框
            ActivityCompat.requestPermissions(
                activity,
                PERMISSIONS_STORAGE,
                REQUEST_EXTERNAL_STORAGE
            )
        }
    } catch (e: Exception) {
        e.printStackTrace()
    }
}