android开发分享开发板 Android7.1 适配 Android10.0—记录

1.启动服务的变更：
第一步：使用startForegroundService来启动service

 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {      startForegroundService(new Intent(this, MyService.class));   } else {      startService(new Intent(this, MyService.class));   } 

第二步：在myService的onCreate中添加一下代码

NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE); NotificationChannel mChannel = null;        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {            mChannel = new NotificationChannel("service_01", getString(R.string.app_name),NotificationManager.IMPORTANCE_LOW);            notificationManager.createNotificationChannel(mChannel);            Notification notification = new Notification.Builder(getApplicationContext(), "service_01").build();            startForeground(1, notification);        } 

第三步：在manifest中添加权限

<uses-permission android:name="android.permission.FOREGROUND_SERVICE"/> 

2.Android10的sd卡读写权限使用了沙盘模式。但也提供了一个兼容代码
在application中添加android:requestLegacyExternalStorage=“true”

<application android:requestLegacyExternalStorage="true" </application> 

3.android 10 限制了使用http请求；可通过一下做兼容：
a.在res目录下创建xml目录,然后随便创建一个myNetwork.xml文件,里面内容如下:

<?xml version="1.0" encoding="utf-8"?> <network-security-config>    <base-config cleartextTrafficPermitted="true" /> </network-security-config> 

b.然后在application中添加android:networkSecurityConfig="@xml/myNetwork"

<application android:networkSecurityConfig="@xml/myNetwork" </application> 

4.智能安装步骤：
a.

 private void smartInstall(String apkPath) {        if(Build.VERSION.SDK_INT >= 24) {//判读版本是否在7.0以上            Uri apkUri = FileProvider.getUriForFile(getView().getContext(), "包名.fileprovider", new File(apkPath));//在AndroidManifest中的android:authorities值            Intent install = new Intent(Intent.ACTION_VIEW);            install.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);            install.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);            install.setDataAndType(apkUri, "application/vnd.android.package-archive");            getView().getContext().startActivity(install);        } else{            Intent install = new Intent(Intent.ACTION_VIEW);            install.setDataAndType(Uri.fromFile(new File(apkPath)), "application/vnd.android.package-archive");            install.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);            getView().getContext().startActivity(install);        }    } 

b. 在manifase中添加provider 标签，如下代码

<application 	 <provider             android:authorities="包名.fileprovider"             android:name="androidx.core.content.FileProvider"             android:exported="false"             android:grantUriPermissions="true">             <meta-data                 android:name="android.support.FILE_PROVIDER_PATHS"                 android:resource="@xml/file_paths" />         </provider> </application> 

c.在res目录下创建xml目录,然后随便创建一个file_paths.xml文件,里面内容如下:

<paths>  <external-path path="" name="ihelmet"/> </paths>