Flutter层对于Android 13存储权限的适配问题

import android.Manifest
import android.content.pm.PackageManager
import android.os.Build
import androidx.core.content.ContextCompat
import io.flutter.embedding.android.FlutterActivity
import io.flutter.embedding.engine.FlutterEngine
import io.flutter.plugins.GeneratedPluginRegistrant
 
class MainActivity: FlutterActivity() {
    override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
        GeneratedPluginRegistrant.registerWith(flutterEngine)
    }
 
    override fun onStart() {
        super.onStart()
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
                requestPermissions(arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE), 1)
            }
            if (checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
                requestPermissions(arrayOf(Manifest.permission.READ_EXTERNAL_STORAGE), 2)
            }
        }
    }
}

这个代码示例展示了如何在Android 13及以上版本中请求存储权限。首先检查权限，如果没有被授予，则使用requestPermissions方法请求权限。这种方式符合Android权限模型的最新规范，对于Flutter开发者来说是一个实用的适配示例。