java - 在 Webview 上启用 GeoLocation

Question

晚上好。我正在使用 Webview 在 Android 上制作跟踪应用程序。我遇到了问题，因为系统在该位置旁边都运行良好。

在 list 中我已经得到了这个权限设置

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

在 mainactivity.java 中我得到了这个

public class MainActivity extends AppCompatActivity {

public WebView webView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.activity_main);

    webView = (WebView)findViewById(R.id.webView);
    WebSettings webSettings = webView.getSettings();
    webSettings.setJavaScriptEnabled(true);
    webView.loadUrl("https://www.primaniagatracking.com/slogin.php");
    webView.setWebViewClient(new WebViewClient());
}}

我不知道让它起作用的原因可能是总是出现征求许可之类的。需要很大的帮助。谢谢。我已经搜索了一些关于启用权限的模板，但遇到了很多错误。

Answer 1

    private boolean isLocationPermissionGrandted() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
            return ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED
                    || ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED
                    || ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_BACKGROUND_LOCATION) == PackageManager.PERMISSION_GRANTED;
        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            return ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED
                    || ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED;
        } else {
            return true;
        }
    }


    private void getLocationPermission() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
            ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_BACKGROUND_LOCATION}, PERMISSION_LOCATTION_CODE);
        } else {
            ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION}, PERMISSION_LOCATTION_CODE);
        }
    }

if (isLocationPermissionGrandted())
     initializeWebView();
else
     getLocationPermission();