/**

* 判断版本

*/

private void checkVersionUpdate(final Context mContext, final File file) {

if (Build.VERSION.SDK_INT >= 26) {

boolean b = getPackageManager().canRequestPackageInstalls();

if (b) {

installApk(mContext, file);

} else {

//请求安装未知应用来源的权限

String[] permissions = {Manifest.permission.REQUEST_INSTALL_PACKAGES};

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {

requestPermissions(permissions, 11);

}

}

} else {

installApk(mContext, file);

}

}

public void installApk(Context mContext, File file) {

Uri fileUri;

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {

//通过FileProvider创建一个content类型的Uri用于适配7.0

fileUri = FileProvider.getUriForFile(mContext, "com.bingding.richtext.app.fileprovider", file);

} else {

fileUri = Uri.fromFile(file);

}

Intent it = new Intent();

it.setAction(Intent.ACTION_VIEW);

it.setDataAndType(fileUri, "application/vnd.android.package-archive");

it.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);// 防止打不开应用

it.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);// 兼容7.0

startActivityForResult(it,111);

}

@Override

public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,

@NonNull int[] grantResults) {

super.onRequestPermissionsResult(requestCode, permissions, grantResults);

List deniedPermissions = getDeniedPermissions(permissions, grantResults);

boolean agreeAll = deniedPermissions.isEmpty();

if (requestCode == 11) {

if (permissions.length > 0 && grantResults.length > 0 && agreeAll) {

installApk(MainActivity.this, newApkFile);

} else {

showToast("请设置允许安装应用");

Intent intent = new Intent(Settings.ACTION_MANAGE_UNKNOWN_APP_SOURCES);

startActivityForResult(intent, 1122);

}

}

}

记得配置清单文件

file_paths文件

标签：8.0,mContext,apk,7.0,VERSION,Intent,Build,file,permissions

来源： https://blog.csdn.net/SMITHKANG/article/details/97113711