我的应用具有自动更新功能,可下载APK,然后使用Intent.ACTION_VIEW打开包安装程序。
最多7个它完美地工作(通过向正常文件提供Intent://)
使用Android 7,我不得不改为使用FileProvider。代码的唯一区别是:
Intent installIntent = new Intent(Intent.ACTION_VIEW);
if (android.os.Build.VERSION.SDK_INT <= Build.VERSION_CODES.M) {
installIntent.setDataAndType(uri,
manager.getMimeTypeForDownloadedFile(downloadId));
} else {
Uri apkUri = FileProvider.getUriForFile(AutoUpdate.this,
BuildConfig.APPLICATION_ID, file);
installIntent.setDataAndType(apkUri,manager.getMimeTypeForDownloadedFile(downloadId));
}
activity.startActivity(installIntent);
一旦调用了startActivity,我每次都会得到这个
这是Android 7的错误吗?或某些/许可缺少我的一面?
编辑AndroidManifest
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<uses-permission android:name="android.permission.READ_LOGS" />
<application ...>
...
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="com.myapp"
android:exported="false"
android:enabled="true"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/provider_paths"/>
</provider>
</application>
路径xmlfile
<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<external-path name="myfolder" path="."/>
</paths>
答案 0 :(得分:7)
尝试如下,它帮助我和它在Android N7.0中工作。
File toInstall = new File(appDirectory, appName + ".apk");
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
Uri apkUri = FileProvider.getUriForFile(activity, BuildConfig.APPLICATION_ID + ".provider", toInstall);
Intent intent = new Intent(Intent.ACTION_INSTALL_PACKAGE);
intent.setData(apkUri);
intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
activity.startActivity(intent);
} else {
Uri apkUri = Uri.fromFile(toInstall);
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(apkUri, "application/vnd.android.package-archive");
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
activity.startActivity(intent);
}
答案 1 :(得分:2)
尝试为您的意图添加读取uri权限:
installIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);