Question

我编辑了一些代码，使应用程序能够获取移动数据的基本信息。我也面临着问题。

权限被要求3次。

应用程序在首次启动时在marshmallow中崩溃，但不允许access_coarse_location权限错误。建议如何解决问题以及此代码有什么问题。

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


<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity android:name=".MainActivity">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

import android.Manifest;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Build;
import android.os.Bundle;
import android.os.PersistableBundle;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;

import android.telephony.CellLocation;
import android.telephony.TelephonyManager;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
    import java.util.Map;
     public class MainActivity extends AppCompatActivity {

    private static final int REQUEST_PERMISSION = 1;
    //Declaring View Object
    public TextView Info;
    public Button Refreshbtn;

    @TargetApi(Build.VERSION_CODES.M)


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Refreshbtn = (Button) findViewById(R.id.Refresh);
        Refreshbtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                DeviceData();
            }
        });
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            //Toast.makeText(this, "It is M Version", Toast.LENGTH_SHORT).show();
            Askpermission();

        } else {
            // Toast.makeText(this, "it is below M", Toast.LENGTH_SHORT).show();
            DeviceData();
        }
    }

    private void Askpermission() {

        List<String> permissionlist = new ArrayList<String>();
        List<String> permissionneeded = new ArrayList<String>();
        if (addPermission(permissionlist, Manifest.permission.ACCESS_COARSE_LOCATION))
            permissionneeded.add("Location");
        if (addPermission(permissionlist, Manifest.permission.ACCESS_FINE_LOCATION))
            permissionneeded.add("Location");
        if (addPermission(permissionlist, Manifest.permission.SEND_SMS))
            permissionneeded.add("Send SMS");
        if (addPermission(permissionlist, Manifest.permission.READ_PHONE_STATE))
            permissionneeded.add("Read Phone Info");


        if (permissionlist.size() > 0) {
            if (permissionneeded.size() > 0) {

                for (int i = 1; i < permissionneeded.size(); i++)
                    ActivityCompat.requestPermissions(this, permissionlist.toArray(new String[permissionlist.size()]), REQUEST_PERMISSION);

            }
            return;
        }

        DeviceData();

    }

    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        switch (requestCode) {
            case REQUEST_PERMISSION: {
                Map<String, Integer> perms = new HashMap<String, Integer>();
                // Initial
                perms.put(Manifest.permission.ACCESS_FINE_LOCATION, PackageManager.PERMISSION_GRANTED);
                perms.put(Manifest.permission.READ_PHONE_STATE, PackageManager.PERMISSION_GRANTED);
                perms.put(Manifest.permission.SEND_SMS, PackageManager.PERMISSION_GRANTED);
                perms.put(Manifest.permission.ACCESS_COARSE_LOCATION, PackageManager.PERMISSION_GRANTED);
                // Fill with results
                for (int i = 0; i < permissions.length; i++)
                    perms.put(permissions[i], grantResults[i]);
                // Check for ACCESS_FINE_LOCATION
                if (perms.get(Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED
                        && perms.get(Manifest.permission.SEND_SMS) == PackageManager.PERMISSION_GRANTED
                        && perms.get(Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED
                        && perms.get(Manifest.permission.READ_PHONE_STATE) == PackageManager.PERMISSION_GRANTED) {
                    // All Permissions Granted
                    DeviceData();
                } else {
                    // Permission Denied
                    Toast.makeText(MainActivity.this, "Some Permission is Denied", Toast.LENGTH_SHORT)
                            .show();
                }
            }
            break;
            default:
                super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        }
    }


    private boolean addPermission(List<String> permissionlist, String permission) {
        if (ContextCompat.checkSelfPermission(MainActivity.this, permission) != PackageManager.PERMISSION_GRANTED) {
            permissionlist.add(permission);
        }
        return true;

    }


    public void DeviceData() {

        Info = (TextView) findViewById(R.id.Info);


        //Creating object to use TelephonyManager Class methods to get required data.
        TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);


        CellLocation Devicelocation = tm.getCellLocation();
        String DeviceId = tm.getDeviceId();
        String Devicecountry = tm.getNetworkCountryIso();
        String Deviceoperator = tm.getNetworkOperator();
        String DeviceSimCountry = tm.getSimCountryIso();
        String Simoperator = tm.getSimOperator();
        String SimOperatorName = tm.getSimOperatorName();
        String simSerialNumber = tm.getSimSerialNumber();
        int Datanetwork = tm.getNetworkType();
        String DataNetworkType = "";
        String Softwareverion = tm.getDeviceSoftwareVersion();
        String PhoneType = "";
        int phonetype = tm.getPhoneType();
        int datastate = tm.getDataState();
        String DataState = "";
        switch (phonetype) {
            case (TelephonyManager.PHONE_TYPE_CDMA):
                PhoneType = "CDMA";
                break;
            case (TelephonyManager.PHONE_TYPE_GSM):
                PhoneType = "GSM";
                break;

            case (TelephonyManager.PHONE_TYPE_NONE):
                PhoneType = "NONE";
                break;
        }
        switch (Datanetwork) {
            case (TelephonyManager.NETWORK_TYPE_EDGE):
                DataNetworkType = "EDGE";
                break;
            case (TelephonyManager.NETWORK_TYPE_HSDPA):
                DataNetworkType = "HSDPA";
                break;

        }

        switch (datastate) {
            case (TelephonyManager.DATA_DISCONNECTED):
                DataState = "Data Disconnected";
                break;
            case (TelephonyManager.DATA_CONNECTING):
                DataState = "Data Connecting";
                break;
            case (TelephonyManager.DATA_CONNECTED):
                DataState = "Data Connected";
                break;
        }

        boolean isRoaming = tm.isNetworkRoaming();

        String AllDetails = "Phone Details:\n";

        AllDetails += "\n Device Location:" + Devicelocation;
        AllDetails += "\n Data Status:" + DataState;
        AllDetails += "\n Data Network Type:" + DataNetworkType;
        AllDetails += "\n Phone Type:" + PhoneType;
        AllDetails += "\n Device IMEI No.:(Id)" + DeviceId;
        AllDetails += "\n Device Country:" + Devicecountry;
        AllDetails += "\n Device Operator:" + Deviceoperator;
        AllDetails += "\n Device Sim Country:" + DeviceSimCountry;
        AllDetails += "\n Sim Operator:" + Simoperator;
        AllDetails += "\n Sim Operator Name:" + SimOperatorName;
        AllDetails += "\n Sim Serial Number:" + simSerialNumber;
        AllDetails += "\n Mobile Software Version:" + Softwareverion;
        AllDetails += "\n Roaming Status:" + isRoaming;

        Info.setText(AllDetails);
    }

}

代码请求权限首次启动时多次

0 个答案: