在AndroidManifiest.xml ACCESS_FINE_LOCATION中响应本机当前位置以获取权限，但已添加

Question

我已经添加了ACCESS_FINE_LOCATION但仍然出现错误

Looks like the app doesn't have the permission to access location. Add the following line to your app's AndroidManifest.xml: <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

这是我的AndroidManifest.xml文件

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

<uses-sdk
    android:minSdkVersion="16"
    android:targetSdkVersion="22" />

请帮助。

Answer 1

您需要在清单中添加 <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> 和 String permission = android.Manifest.permission.ACCESS_FINE_LOCATION; if (ActivityCompat.checkSelfPermission(SearchCityClass.this, permission) != PackageManager.PERMISSION_GRANTED && ActivityCompat. checkSelfPermission(SearchCityClass.this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) { Toast.makeText(SearchCityClass.this, "Permission not granted", Toast.LENGTH_SHORT).show(); ActivityCompat.requestPermissions(SearchCityClass.this, new String[] {permission}, requestCode); } 权限

确保您已在清单文件中添加了权限

assets/levels/merkur/level1.gbl

如果您的目标是Android api 23及以上，则必须要求 run-time permission

因为从Android 6.0（API级别23）开始，用户在应用运行时向应用授予权限，而不是在安装应用时授予权限。

充足的代码

if (Gdx.files.internal("levels/merkur/level1.gbl").file().exists()) 

Answer 2

在SDK版本23之前的设备上，如果权限出现在清单中，则会自动授予权限，因此请检查并且请求应始终为true。

如果用户之前已关闭您提示的权限，操作系统会建议您的应用显示需要该权限的理由。可选的基本原理参数仅在必要时显示对话框提示 - 否则，将显示正常的权限提示。

    import { PermissionsAndroid } from 'react-native';
    async function requestCameraPermission() {
    try {
          const granted = await PermissionsAndroid.request(
          PermissionsAndroid.ACCESS_FINE_LOCATION,
          {
          'title': 'Location Permission Permission',
           'message': 'App needs access to your Location ' +
               '.'
          }
          )
       if (granted === PermissionsAndroid.RESULTS.GRANTED) {
        console.log("You can use the Location")
       } else {
         console.log("Location permission denied")
     }
} catch (err) {
console.warn(err)
}
}