Question

此“ checkSelfPermission”函数中显示错误

这是我的代码：

private void checkBTPermissions() {
        if(Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP){
            int permissionCheck =
            this.checkSelfPermission("Manifest.permission.ACCESS_FINE_LOCATION");

           permissionCheck+=this.checkSelfPermission("Manifest.permission.ACCESS_COARSE_LOCATION");

          if (permissionCheck != 0) {

                this.requestPermissions(new String[]{Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION}, 1001); //Any number
            }
        }else{
            Log.d(TAG, "checkBTPermissions: No need to check permissions. SDK version < LOLLIPOP.");
        }
    }

Answer 1

权限检查仅在API 23（即棉花糖）中可用。
您无需在Api <23上请求权限，因为它们会在App Install中自动授予。
更多信息-
https://developer.android.com/about/versions/marshmallow/android-6.0-changes#behavior-runtime-permissions

Answer 2

您在以下代码上输入错误：

var myArray = [{
    id: 1,
    title: 'object without variants',
    variants: []
  },
  {
    id: 2,
    title: 'object with variants',
    variants: [{
      id: 21,
      title: 'variant 1',
      variants: [{
        id: 23,
        title: 'variant 1'
      }, {
        id: 24,
        title: 'variant 2'
      }]
    }, {
      id: 22,
      title: 'variant 2'
    }]
  }
]

console.log(deleteByID(myArray, 21));

function deleteByID(array, id) {
  for (var i = 0; i < array.length; i++) {
    var item = array[i];

    deleteItemByID(myArray, item, id, i);
  }

  return array;
}

function deleteItemByID(array, item, id, count) {
  if (item.id == id) {
    array.splice(count, 1);
    return;
  } else {
    if (item.variants) {
      if (typeof item.variants === "object") {
        for (var i = 0; i < item.variants.length; i++) {
          var varItem = item.variants[i];
          deleteItemByID(item.variants, varItem, id, i);
        }
      }
    }
  }
}

if(Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP) {} = 21 。您只能要求API级别> 22的运行时权限。

通过将代码更改为以下内容来修复该问题：

Build.VERSION_CODES.LOLLIPOP

甚至更好的方法是使用我的kubetail：）

调用需要API级别23（当前最小值为18）：android.app.Activity＃requestPermissions

2 个答案: