Android无法解析符号OnRequestPermissionsResultCallback [英] Android Cannot resolve symbol OnRequestPermissionsResultCallback

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问题描述

我是android新手，我正在尝试构建一个应用程序来显示我的当前位置，并且我正在关注来自google链接的apidemos中的设置 here 。这是一项任务的一部分，所以我不想透露我的最终目标是什么。现在我想能够在我的应用上使用gps位置。我将发布我的活动代码，xml布局代码，清单代码和gradle代码。如果还有其他东西需要发布，请告诉我。我尝试过搜索，但找不到任何东西。如果它有帮助，我主要是为我的手机做这个。 Nexus 6p Android 6.0.1编辑：得到OnRequestPermissionsResultCallback工作，但仍然有PermissionUtils给我一个错误。



我会评论我的错误/无法解决的地方。

XML代码

 < Button 
 android：id =@ + id / StartButton
 android：layout_width =wrap_content 
 android：layout_height =wrap_content
 android：layout_gravity =start | bottom
 android：text =@ string / Start
 android：padding =10dp
 android：layout_marginBottom =10dp
 android：paddingLeft =10dp
 android：onClick =start/>

以下是我的活动
package com.example.name.app; 

  import android.Manifest; 
导入android.app.Activity; 
导入android.content.pm.PackageManager; 
导入android.net.Uri; 
导入android.os.Bundle; 
导入android.os.Environment; 
导入android.provider.MediaStore; 
导入android.support.v4.app.FragmentActivity; 
 
导入android.view.View; 
 
导入com.google.android.gms.maps.GoogleMap; 
 import com.google.android.gms.maps.OnMapReadyCallback; 
 import com.google.android.gms.maps.SupportMapFragment; 
导入android.support.v4.content.ContextCompat; 
 import com.google.android.gms.maps.GoogleMap.OnMyLocationButtonClickListener; 
 
 
导入android.support.annotation.NonNull; 
导入android.support.v4.app.ActivityCompat; 
导入android.support.v4.content.ContextCompat; 
导入android.support.v7.app.AppCompatActivity; 
导入android.widget.Toast; 
 import com.google.android.gms.maps.model.LatLng; 
导入com.google.android.gms.maps.model.MarkerOptions; 
 
导入android.content.Intent; 
 
 import java.io.File; 
 import java.io.IOException; 
 import java.text.SimpleDateFormat; 
 import java.util.Date; 
 
导入android.widget.Button; 
 
 
 
 $ b公共类MapsActivity扩展AppCompatActivity 
实现
 OnMyLocationButtonClickListener，
 OnMapReadyCallback，
 ActivityCompat.OnRequestPermissionsResultCallback { //错误OnRequest ... CallBack 
 / ** 
 *位置权限请求的请求代码。 
 * 
 * @see #onRequestPermissionsResult（int，String []，int []）
 * / 
 private static final int LOCATION_PERMISSION_REQUEST_CODE = 1; 
 / ** 
 *表示在返回
 * {@link #onRequestPermissionsResult（int，String []，int []）}后请求的权限是否被拒绝的标志。 
 * / 
 private boolean mPermissionDenied = false; 
 
 Button startbutton; 
按钮停止按钮; 
按钮分享按钮; 
私有GoogleMap mMap; 
 static final int REQUEST_IMAGE_CAPTURE = 1; 
 static final int REQUEST_TAKE_PHOTO = 1; 
 
字符串mCurrentPhotoPath; 
 
 @Override 
 protected void onCreate（Bundle savedInstanceState）{
 super.onCreate（savedInstanceState）; 
 setContentView（R.layout.activity_maps）; 
 SupportMapFragment mapFragment =（SupportMapFragment）getSupportFragmentManager（）
 .findFragmentById（R.id.map）; 
 mapFragment.getMapAsync（this）; 
 
 startbutton =（Button）findViewById（R.id.StartButton）; 
 stopbutton =（Button）findViewById（R.id.StopButton）; 
 sharebutton =（Button）findViewById（R.id.ShareButton）; 
 
} 
 
 @Override 
 public void onMapReady（GoogleMap googleMap）{
 mMap = googleMap; 
 
 //在意大利威尼斯添加一个标记，并移动相机。 
 / * LatLng venice = new LatLng（45.43,12.33）; 
 mMap.addMarker（new MarkerOptions（）。position（venice）.title（威尼斯标记））; 
 mMap.moveCamera（CameraUpdateFactory.newLatLng（venice））; * / 
 
 mMap.setOnMyLocationButtonClickListener（this）; 
 enableMyLocation（）; 
 
 $ b $ private void enableMyLocation（）{
 //错误无法解决方法checkSelfPermission 
 if（ContextCompat.checkSelfPermission（this，Manifest.permission.ACCESS_FINE_LOCATION）
！= PackageManager.PERMISSION_GRANTED）{
 //访问位置的权限丢失。 
 //错误无法解析符号PermissionUtils 
 PermissionUtils.requestPermission（this，LOCATION_PERMISSION_REQUEST_CODE，
 Manifest.permission.ACCESS_FINE_LOCATION，true）; 
} else if（mMap！= null）{
 //访问位置已被授予应用程序。 
 mMap.setMyLocationEnabled（true）; 
 
 
 
 @Override 
 public boolean onMyLocationButtonClick（）{
 Toast.makeText（this，MyLocation button clicked，Toast.LENGTH_SHORT） 。显示（）; 
 //返回false，以便我们不消耗事件并且默认行为仍然发生
 //（相机动画到用户的当前位置）。 
返回false; 
} 
 
 @Override 
 public void onRequestPermissionsResult（int requestCode，@NonNull String [] permissions，
 @NonNull int [] grantResults）{
 if （requestCode！= LOCATION_PERMISSION_REQUEST_CODE）{
 return; 
 
 //错误无法解析符号PermissionUtils 
 
 if（PermissionUtils.isPermissionGranted（permissions，grantResults，$ b $ Manifest.permission.ACCESS_FINE_LOCATION））{
 //如果已授予权限，则启用我的位置图层。 
 enableMyLocation（）; 
} else {
 //片段恢复时显示丢失的权限错误对话框。 
 mPermissionDenied = true; 
 
 $ b $ @覆盖
保护无效onResumeFragments（）{
 super.onResumeFragments（）; 
 if（mPermissionDenied）{
 //权限未被授予，显示错误对话框。 
 showMissingPermissionError（）; 
 mPermissionDenied = false; 
 
 
 //错误无法解析符号PermissionUtils 
 $ b $ private void showMissingPermissionError（）{
 PermissionUtils.PermissionDeniedDialog 
 .newInstance（true ）.show（getSupportFragmentManager（），dialog）; 
} 
 
 public void start（View view）{
 startbutton.setText（Running）; 
 stopbutton.setText（Stop）; 
} 
 public void stop（View view）{
 stopbutton.setText（Stopped）; 
 startbutton.setText（Start）; 
} 
 private文件createImageFile（）抛出IOException {
 //创建一个图像文件名
 String timeStamp = new SimpleDateFormat（yyyyMMdd_HHmmss）。format（new Date（）） ; 
 String imageFileName =JPEG_+ timeStamp +_; 
 //获取位置并存储
文件storageDir = new File（Environment.getExternalStoragePublicDirectory（
 Environment.DIRECTORY_PICTURES）+/ MyMap）; //保存在Pictures / MyMapp中，但只能从文件浏览器中查看
 File image = File.createTempFile（
 imageFileName，/ *前缀* / 
.jpg，/ *后缀* / 
 storageDir / *目录* / 
）; 
 
 //保存文件：用于ACTION_VIEW意图的路径
 mCurrentPhotoPath =file：+ image.getAbsolutePath（）; 
返回图片; 
} 
 public void openCamera（View view）{
 Intent takePictureIntent = new Intent（MediaStore.ACTION_IMAGE_CAPTURE）; 
 //确保有相机活动来处理意图
 if（takePictureIntent.resolveActivity（getPackageManager（））！= null）{
 //创建照片应该到达的文件
档案photoFile = null; 
尝试{
 photoFile = createImageFile（）; 
} catch（IOException ex）{
 //创建文件时发生错误
 
} 
 //仅在文件被成功创建时继续
 if（photoFile！= null）{
 takePictureIntent.putExtra（MediaStore.EXTRA_OUTPUT，
 Uri.fromFile（photoFile））; 
 startActivityForResult（takePictureIntent，REQUEST_TAKE_PHOTO）; 
 galleryAddPic（）; （Intent.ACTION_MEDIA_SCANNER_SCAN_FILE）; 
} 
文件f =新文件（mCurrentPhotoPath）; 
 Uri contentUri = Uri.fromFile（f）; 
 mediaScanIntent.setData（contentUri）; 
 this.sendBroadcast（mediaScanIntent）; 
} 
 
}

这是我的Android清单 p> 

 <？xml version =1.0encoding =utf-8？> 
< manifest xmlns：android =http://schemas.android.com/apk/res/android
 package =com.example.name.app> 
 
<使用权限android：name =android.permission.INTERNET/> 
< uses-permission android：name =android.permission.ACCESS_NETWORK_STATE/> 
< uses-permission android：name =android.permission.WRITE_EXTERNAL_STORAGE/> 
<使用权限android：name =com.google.android.providers.gsf.permission.READ_GSERVICES/> 
 <！ -  
使用
 Google Maps Android API v2时不需要ACCESS_COARSE / FINE_LOCATION权限，但建议您使用。 
  - > 
< uses-permission android：name =android.permission.ACCESS_COARSE_LOCATION/> 
< uses-permission android：name =android.permission.ACCESS_FINE_LOCATION/> 
<使用权限android：name =android.permission.CAMERA> < /使用的许可> 
 
< uses-feature android：name =android.hardware.camera
 android：required =true/> 
< uses-permission android：name =android.permission.WRITE_EXTERNAL_STORAGE/> 
<使用权限android：name =android.permission.READ_EXTERNAL_STORAGE/> 
 
< application 
 android：allowBackup =true
 android：icon =@ mipmap / ic_launcher
 android：label =@ string / app_name 
 android：theme =@ style / AppTheme> 
< meta-data 
 android：name =com.google.android.gms.version
 android：value =@ integer / google_play_services_version/> 
< meta-data 
 android：name =com.google.android.maps.v2.API_KEY
 android：value =@ string / google_maps_key/> 
< meta-data 
 android：name =com.google.android.gms.version
 android：value =@ integer / google_play_services_version/> 
< activity 
 android：name =。MapsActivity
 android：label =@ string / title_activity_maps
 android：screenOrientation =portrait> 
< intent-filter> 
  
< category android：name =android.intent.category.LAUNCHER/> 
< / intent-filter> 
< / activity> 
< / application> 
 
< / manifest>

这里是我更新后的build gradle
apply plugin：'com.android.application' 

  android {
 compileSdkVersion 23 
 buildToolsVersion23.0.2
 
 defaultConfig {
 applicationIdcom.example.name.app
 minSdkVersion 15 
 targetSdkVersion 23 
 versionCode 1 
 versionName1.0
} 
 buildTypes {
 release {
 minifyEnabled false 
 proguardFiles getDefaultProguardFile（'proguard-android.txt'），'proguard-rules.pro'
} 
} 
 
 
编译fileTree（include：['* .jar']，dir：'libs'）
 compile'c​​om.android.support:appcompat- v7：23.2.0'
 compile'c​​om.google.android.gms：play-services：8.4.0'
 compile'c​​om.android.support:support-v13:23.2.0'
}


决议案

升级：




  • compileSdkVersion 至 23

  • buildToolsVersion 至 23.0.2 com.android.support:appcompat-v7 和 com.android.support： support-v13 至 23.2.0



您缺少的符号来自 appcompat-v7 的23.xy版本;其他变化是保持主要版本同步。



另外，请注意 7.5.0 是一个宁可旧版的 play-services ;我建议将它升级到 8.4.0 。



而且，请记住，您的所有运行时权限是毫无意义的，给定 targetSdkVersion 22 。


I am new to android and I am trying to build an app to show my current location and I am following the setup in apidemos from google linked here. This is part of an assignment so I do not want to disclose what my ultimate goal is. For now I want to be able to have gps location working on my app. I will post my activity code, xml layout code, manifest code and gradle code. If there is anything else I need to post please let me know. I have tried searching but I couldn't find anything. Also if it helps I am mainly making this for my phone. Nexus 6p Android 6.0.1

EDIT:Got OnRequestPermissionsResultCallback Working but still have PermissionUtils giving me an error.

I will comment where my errors/cannot resolves are occurring

XML Code 

        <Button
            android:id="@+id/StartButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="start|bottom"
            android:text="@string/Start"
            android:padding="10dp"
            android:layout_marginBottom="10dp"
            android:paddingLeft="10dp"
            android:onClick="start"/>
        <Button
            android:id="@+id/StopButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="start|bottom"
            android:text="@string/Stop"
            android:padding="10dp"
            android:layout_marginBottom="10dp"
            android:layout_marginLeft="107dp"
            android:paddingLeft="10dp"
            android:onClick="stop"/>
        <Button
            android:id="@+id/CameraButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="end|bottom"
            android:text="@string/Camera"
            android:padding="10dp"
            android:layout_marginBottom="10dp"
            android:layout_marginRight="107dp"
            android:paddingRight="10dp"
            android:onClick="openCamera"/>
        <Button
            android:id="@+id/ShareButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="end|bottom"
            android:text="@string/Share"
            android:padding="10dp"
            android:layout_marginBottom="10dp"
            android:paddingRight="10dp"/>

    </fragment>

Here is my activity package com.example.name.app;

import android.Manifest;
import android.app.Activity;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v4.app.FragmentActivity;

import android.view.View;

import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import android.support.v4.content.ContextCompat;
import com.google.android.gms.maps.GoogleMap.OnMyLocationButtonClickListener;


import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.widget.Toast;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

import android.content.Intent;

import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;

import android.widget.Button;




public class MapsActivity extends AppCompatActivity
        implements
        OnMyLocationButtonClickListener,
        OnMapReadyCallback,
        ActivityCompat.OnRequestPermissionsResultCallback { //ERROR on OnRequest...CallBack
    /**
     * Request code for location permission request.
     *
     * @see #onRequestPermissionsResult(int, String[], int[])
     */
    private static final int LOCATION_PERMISSION_REQUEST_CODE = 1;
    /**
     * Flag indicating whether a requested permission has been denied after returning in
     * {@link #onRequestPermissionsResult(int, String[], int[])}.
     */
    private boolean mPermissionDenied = false;

    Button startbutton;
    Button stopbutton;
    Button sharebutton;
    private GoogleMap mMap;
    static final int REQUEST_IMAGE_CAPTURE = 1;
    static final int REQUEST_TAKE_PHOTO = 1;

    String mCurrentPhotoPath;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);
        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);

        startbutton= (Button) findViewById(R.id.StartButton);
        stopbutton = (Button) findViewById(R.id.StopButton);
        sharebutton= (Button) findViewById(R.id.ShareButton);

    }

    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;

        // Add a marker in Venice, Italy, and move the camera.
       /* LatLng venice = new LatLng(45.43, 12.33);
        mMap.addMarker(new MarkerOptions().position(venice).title("Marker in Venice"));
        mMap.moveCamera(CameraUpdateFactory.newLatLng(venice));*/

        mMap.setOnMyLocationButtonClickListener(this);
        enableMyLocation();
    }

    private void enableMyLocation() {
        //ERROR CANNOT RESOLVE METHOD checkSelfPermission
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
                != PackageManager.PERMISSION_GRANTED) {
            // Permission to access the location is missing.
            //ERROR CANNOT RESOLVE SYMBOL PermissionUtils
            PermissionUtils.requestPermission(this, LOCATION_PERMISSION_REQUEST_CODE,
                    Manifest.permission.ACCESS_FINE_LOCATION, true);
        } else if (mMap != null) {
            // Access to the location has been granted to the app.
            mMap.setMyLocationEnabled(true);
        }
    }

    @Override
    public boolean onMyLocationButtonClick() {
        Toast.makeText(this, "MyLocation button clicked", Toast.LENGTH_SHORT).show();
        // Return false so that we don't consume the event and the default behavior still occurs
        // (the camera animates to the user's current position).
        return false;
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
                                           @NonNull int[] grantResults) {
        if (requestCode != LOCATION_PERMISSION_REQUEST_CODE) {
            return;
        }
        //ERROR CANNOT RESOLVE SYMBOL PermissionUtils

        if (PermissionUtils.isPermissionGranted(permissions, grantResults,
                Manifest.permission.ACCESS_FINE_LOCATION)) {
            // Enable the my location layer if the permission has been granted.
            enableMyLocation();
        } else {
            // Display the missing permission error dialog when the fragments resume.
            mPermissionDenied = true;
        }
    }
    @Override
    protected void onResumeFragments() {
        super.onResumeFragments();
        if (mPermissionDenied) {
            // Permission was not granted, display error dialog.
            showMissingPermissionError();
            mPermissionDenied = false;
        }
    }
    //ERROR CANNOT RESOLVE SYMBOL PermissionUtils

    private void showMissingPermissionError() {
        PermissionUtils.PermissionDeniedDialog
                .newInstance(true).show(getSupportFragmentManager(), "dialog");
    }

    public void start(View view){
        startbutton.setText("Running");
        stopbutton.setText("Stop");
    }
    public void stop(View view){
        stopbutton.setText("Stopped");
        startbutton.setText("Start");
    }
    private File createImageFile() throws IOException {
        // Create an image file name
        String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
        String imageFileName = "JPEG_" + timeStamp + "_";
        //Get location and store it
        File storageDir = new File (Environment.getExternalStoragePublicDirectory(
                Environment.DIRECTORY_PICTURES)+"/MyMap"); //Saves it in Pictures/MyMapp  but can only be viewd from file explorer
        File image = File.createTempFile(
                imageFileName,  /* prefix */
                ".jpg",         /* suffix */
                storageDir      /* directory */
        );

        // Save a file: path for use with ACTION_VIEW intents
        mCurrentPhotoPath = "file:" + image.getAbsolutePath();
        return image;
    }
    public void openCamera(View view) {
        Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        // Ensure that there's a camera activity to handle the intent
        if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
            // Create the File where the photo should go
            File photoFile = null;
            try {
                photoFile = createImageFile();
            } catch (IOException ex) {
                // Error occurred while creating the File

            }
            // Continue only if the File was successfully created
            if (photoFile != null) {
                takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT,
                        Uri.fromFile(photoFile));
                startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
                galleryAddPic();
            }
        }
    }
    private void galleryAddPic() {
        Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
        File f = new File(mCurrentPhotoPath);
        Uri contentUri = Uri.fromFile(f);
        mediaScanIntent.setData(contentUri);
        this.sendBroadcast(mediaScanIntent);
    }

}

Here is my android manifest

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.name.app" >

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
    <!--
 The ACCESS_COARSE/FINE_LOCATION permissions are not required to use
         Google Maps Android API v2, but are recommended.
    -->
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.CAMERA"> </uses-permission>

    <uses-feature android:name="android.hardware.camera"
        android:required="true" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />
        <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="@string/google_maps_key" />
        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />
        <activity
            android:name=".MapsActivity"
            android:label="@string/title_activity_maps"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

    </manifest>

And here is my updated build gradle apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.2"

    defaultConfig {
        applicationId "com.example.name.app"
        minSdkVersion 15
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile 'com.android.support:appcompat-v7:23.2.0'
    compile 'com.google.android.gms:play-services:8.4.0'
    compile 'com.android.support:support-v13:23.2.0'
}

解决方案

Upgrade:

  • compileSdkVersion to 23
  • buildToolsVersion to 23.0.2
  • com.android.support:appcompat-v7 and com.android.support:support-v13 to 23.2.0

Your missing symbol is from a 23.x.y edition of appcompat-v7; the other changes are to keep the major version in sync.

Also, note that 7.5.0 is a rather old edition of play-services; I recommend upgrading that to 8.4.0.

And, bear in mind that all your runtime permission stuff is pointless, given targetSdkVersion 22.

这篇关于Android无法解析符号OnRequestPermissionsResultCallback的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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