致命异常：java.lang.SecurityException:需要访问\u粗略\u位置或访问\u精细\u位置权限

在尝试更新大于22的CompileSDK版本和TargetSDK版本后，出现此错误。似乎我在我的doInBackground方法中执行任何GUI任务，但我无法理解它。如果能找到解决办法，我将不胜感激

这是我的堆栈跟踪：

E/AndroidRuntime: FATAL EXCEPTION: AsyncTask #1
                  Process: xy.abc.xyz.xy, PID: 15246
                  java.lang.RuntimeException: An error occurred while executing doInBackground()
  at android.os.AsyncTask$3.done(AsyncTask.java:309)
  at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354)
  at java.util.concurrent.FutureTask.setException(FutureTask.java:223)
  at java.util.concurrent.FutureTask.run(FutureTask.java:242)
  at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
 at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.SecurityException: Need ACCESS_COARSE_LOCATION or ACCESS_FINE_LOCATION permission to get scan results
at android.os.Parcel.readException(Parcel.java:1599)
at android.os.Parcel.readException(Parcel.java:1552)
at android.net.wifi.IWifiManager$Stub$Proxy.getScanResults(IWifiManager.java:1066) at android.net.wifi.WifiManager.getScanResults(WifiManager.java:1311)
 at xy.abc.xyz.xy.config.WlanInfoAdapter.getNewItems(WlanInfoAdapter.java:72)
                      at xy.abc.xyz.xy.android.data.ChangeableArrayAdapter$1.doInBackground(ChangeableArrayAdapter.java:78)
                      at xy.abc.xyz.xy.android.data.ChangeableArrayAdapter$1.doInBackground(ChangeableArrayAdapter.java:74)
                      at android.os.AsyncTask$2.call(AsyncTask.java:295)
                      at java.util.concurrent.FutureTask.run(FutureTask.java:237)
                      at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234) 
                      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) 
                      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
                      at java.lang.Thread.run(Thread.java:818) 

类WlanInfoAdapter.java:72中的方法如下：

@Override
    protected List<WlanInfo> getNewItems() {
        WifiManager wifiManager = (WifiManager) getContext().getSystemService(Context.WIFI_SERVICE);
        List<ScanResult> scanResults = wifiManager.getScanResults();
        List<WlanInfo> infoList = new ArrayList<>(scanResults.size());

        WifiInfo connectionInfo = wifiManager.getConnectionInfo();

        try {
            List<WifiConfiguration> configuredNetworks = wifiManager.getConfiguredNetworks();
            Map<String, WifiConfiguration> configuredNetworkIds = new HashMap<>();
            for (WifiConfiguration configuredNetwork : configuredNetworks) {
                if (configuredNetwork.SSID != null) {
                    configuredNetworkIds.put(WlanInfo.cleanSSID(configuredNetwork.SSID), configuredNetwork);
                } else {

                    wifiManager.removeNetwork(configuredNetwork.networkId);
                }
            }

            for (ScanResult scanResult : scanResults) {
                WlanInfo wlanInfo = new WlanInfo(scanResult);
                WifiConfiguration configuration = configuredNetworkIds.get(wlanInfo.getSSID());
                wlanInfo.setConfiguration(configuration);
                wlanInfo.setIsActive(configuration != null && configuration.networkId == connectionInfo.getNetworkId());


                if (showUnknown || wlanInfo.isConfigured() || wlanInfo.isOpen()) {
                    infoList.add(wlanInfo);
                }
            }
        }
        catch (Exception e) { e.printStackTrace(); return null; }
        return infoList;
    }

@覆盖
受保护的列表getNewItems（）{
WifiManager WifiManager=（WifiManager）getContext（）.getSystemService（Context.WIFI_服务）；
List scanResults=wifiManager.getScanResults（）；
List infoList=newarraylist（scanResults.size（））；
WifiInfo connectionInfo=wifiManager.getConnectionInfo（）；
试一试{
List configuredNetworks=wifiManager.getConfiguredNetworks（）；
Map ConfiguredNetworkId=新HashMap（）；
用于（无线配置配置数据网络：配置数据网络）{
if（configuredNetwork.SSID！=null）{
configuredNetworkId.put（WlanInfo.CleansId（configuredNetwork.SSID），configuredNetwork）；
}否则{
wifiManager.removeNetwork（configuredNetwork.networkId）；
}
}
用于（扫描结果扫描结果：扫描结果）{
WlanInfo WlanInfo=新WlanInfo（扫描结果）；
WifiConfiguration configuration=configuredNetworkIds.get（wlanInfo.getSSID（））；
wlanInfo.setConfiguration（配置）；
wlanInfo.setIsActive（配置！=null&&configuration.networkId==connectionInfo.getNetworkId（））；
if（showUnknown | | wlanInfo.isConfigured（）| | wlanInfo.isOpen（））{
infoList.add（wlanInfo）；
}
}
}
catch（异常e）{e.printStackTrace（）；返回null；}
返回信息列表；
}

下面给出了changeableArrayAdapter.java类中显示错误的方法。在其中调用getNewItems（）方法： ChangeableArrayAdapter.java:78 ChangeableArrayAdapter.java:74

public void triggerRefresh() {
        AsyncTask<Void, Void, List<T>> asyncTask = new AsyncTask<Void, Void, List<T>>() {
            @Override
            protected List<T> doInBackground(Void... objects) {


                return getNewItems();

                //return null;
            }

public void触发器刷新（）{
AsyncTask AsyncTask=新建AsyncTask（）{
@凌驾
受保护列表doInBackground（无效…对象）{
返回getNewItems（）；
//返回null；
}

您需要将

访问粗略位置

或

访问精细位置

添加为您的Android清单文件的权限。

如果您仅针对API 22，则需要将这2个权限添加到您的Android清单文件中

 <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>  

---

如果您的目标是Android棉花糖（Api 23及以上）您需要在应用程序中授予运行时权限。

将这些添加到

AndroidManifest.xml

之前的

应用程序

标记中

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

及

也

及

public static boolean ispermissiongrantpermissions（@NonNull String[]grantPermissions，@NonNull int[]grantResults，
@非空字符串权限）{
for（int i=0；i

谢谢你的回答。我已经在清单文件中添加了这两个权限。但我的应用程序仍在崩溃。我想我会尝试在我的应用程序中授予运行时权限。我想问一下这就是你所说的，如果不是，请尽可能提供正确的链接。非常感谢是的，仅此而已。或者你可以在谷歌上搜索它如何在Android中添加粗略位置的运行时权限谢谢你的全面解释。我想知道我是否应该将位置(u permission)请求(u REQUEST)编码为最终staic变量并将其值设置为1？？？@LanguageMaster是的，这正是它的含义。你真是太棒了，曼恩。你让我开心了。非常感谢你的回答。这是工作时间。

     if (ContextCompat.checkSelfPermission(YourActivity.this,
                            Manifest.permission.ACCESS_FINE_LOCATION)
                            != PackageManager.PERMISSION_GRANTED
                            &&
                            ContextCompat.checkSelfPermission(YourActivity.this,
                                    Manifest.permission.ACCESS_COARSE_LOCATION)
                                    != PackageManager.PERMISSION_GRANTED) {
                        askForLocationPermissions();
      } else {
          //do your work
     }

private void askForLocationPermissions() {

        // Should we show an explanation?
        if (ActivityCompat.shouldShowRequestPermissionRationale(this,
                Manifest.permission.ACCESS_FINE_LOCATION)) {

            new android.support.v7.app.AlertDialog.Builder(this)
                    .setTitle("Location permessions needed")
                    .setMessage("you need to allow this permission!")
                    .setPositiveButton("Sure", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int which) {
                            ActivityCompat.requestPermissions(YourActivity.this,
                                    new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
                                    LOCATION_PERMISSION_REQUEST_CODE);
                        }
                    })
                    .setNegativeButton("Not now", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int which) {
//                                        //Do nothing
                        }
                    })
                    .show();

            // Show an expanation to the user *asynchronously* -- don't block
            // this thread waiting for the user's response! After the user
            // sees the explanation, try again to request the permission.

        } else {

            // No explanation needed, we can request the permission.
            ActivityCompat.requestPermissions(this,
                    new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
                    LOCATION_PERMISSION_REQUEST_CODE);

            // MY_PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION is an
            // app-defined int constant. The callback method gets the
            // result of the request.
        }
    }

@Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
        switch (requestCode) {
            case LOCATION_PERMISSION_REQUEST_CODE:
                if (isPermissionGranted(permissions, grantResults, Manifest.permission.ACCESS_FINE_LOCATION)) {
                    //Do you work
                } else {
                    Toast.makeText(this, "Can not proceed! i need permission" , Toast.LENGTH_SHORT).show();
                }
                break;
        }
    }

   public static boolean isPermissionGranted(@NonNull String[] grantPermissions, @NonNull int[] grantResults,
                                              @NonNull String permission) {
        for (int i = 0; i < grantPermissions.length; i++) {
            if (permission.equals(grantPermissions[i])) {
                return grantResults[i] == PackageManager.PERMISSION_GRANTED;
            }
        }
        return false;
    }