深入 Google Android 6.0/7.0/8.0/9.0 之权限适配详解

但是这里有一个隐形的BUG/也就是阿里巴巴安卓开发规范提出的:

所以写代码得要考虑使用环境 设备的不同  版本的不同等 

if (null != type && !TextUtils.isEmpty(type)) {
    intent.setDataAndType(uri, type);
    if (context.getPackageManager().resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY) != null) {
        context.startActivity(intent);
    } else {
        //没有匹配到相关组件 
    }
}

int permission = ActivityCompat.checkSelfPermission(activity,
        Manifest.permission.REQUEST_INSTALL_PACKAGES);
if (permission != PackageManager.PERMISSION_GRANTED) {
    // We don't have permission so prompt the user
    ActivityCompat.requestPermissions(activity, PERMISSONS,
            REQUEST_EXTERNAL_STORAGE);
}

private static String[] PERMISSONS= {
   Manifest.permission.REQUEST_INSTALL_PACKAGES
};