我正在实施goofence app来检测用户位置，它不支持21及以上的设备如何为所有设备实现它。
MainActivity.java
Location location = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
if (location == null) {
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, MainActivity.this);
接收用户位置并从中接收更新的代码。
这是我的主要活动类，如果我添加权限，我也会收到错误
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
Error:(100, 64) error: incompatible types: <anonymous ConnectionCallbacks> cannot be converted to Context.
after implementing permission i get error like this.
Build:gradle(app)
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "25.0.2"
defaultConfig {
applicationId "com.example.barathkumarjt.geo"
minSdkVersion 14
targetSdkVersion 23
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile ('com.android.support:appcompat-v7:23.2.1'){ exclude module: 'support-v4' }
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile'com.android.support:design:23.1.1'
compile'com.google.android.gms:play-services:8.4.0'
testCompile 'junit:junit:4.12'
}
Manifest file
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.barathkumarjt.geo">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme.NoActionBar">
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name=".GeofenceTransitionsIntentService" android:exported="true" />
</application>
</manifest>
Errors
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.barathkumarjt.geo, PID: 711
java.lang.SecurityException: Client must have ACCESS_FINE_LOCATION permission to request PRIORITY_HIGH_ACCURACY locations.
at android.os.Parcel.readException(Parcel.java:1683)
at android.os.Parcel.readException(Parcel.java:1636)
at com.google.android.gms.location.internal.zzi$zza$zza.zza(Unknown Source)
at com.google.android.gms.location.internal.zzk.zza(Unknown Source)
at com.google.android.gms.location.internal.zzl.zza(Unknown Source)
at com.google.android.gms.location.internal.zzd$1.zza(Unknown Source)
at com.google.android.gms.location.internal.zzd$1.zza(Unknown Source)
at com.google.android.gms.common.api.internal.zza$zza.zzb(Unknown Source)
at com.google.android.gms.common.api.internal.zzg.zza(Unknown Source)
at com.google.android.gms.common.api.internal.zzg.zzb(Unknown Source)
at com.google.android.gms.common.api.internal.zzl.zzb(Unknown Source)
at com.google.android.gms.common.api.internal.zzj.zzb(Unknown Source)
at com.google.android.gms.location.internal.zzd.requestLocationUpdates(Unknown Source)
at com.example.barathkumarjt.geo.MainActivity$1.onConnected(MainActivity.java:97)
at com.google.android.gms.common.internal.zzk.zzk(Unknown Source)
at com.google.android.gms.common.api.internal.zzj.zzi(Unknown Source)
at com.google.android.gms.common.api.internal.zzh.zzpx(Unknown Source)
at com.google.android.gms.common.api.internal.zzh.onConnected(Unknown Source)
at com.google.android.gms.common.api.internal.zzl.onConnected(Unknown Source)
at com.google.android.gms.common.api.internal.zzc.onConnected(Unknown Source)
at com.google.android.gms.common.internal.zzj$zzg.zzqL(Unknown Source)
at com.google.android.gms.common.internal.zzj$zza.zzc(Unknown Source)
at com.google.android.gms.common.internal.zzj$zza.zzw(Unknown Source)
at com.google.android.gms.common.internal.zzj$zzc.zzqN(Unknown Source)
at com.google.android.gms.common.internal.zzj$zzb.handleMessage(Unknown Source)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
My app is running on the device Api level 4.4.4 and while running on devices 21 and above the app is opening and get closed suddenly and i want to implement this app that support all devices please help me to implement it.
Thanks and help in advance!
答案 0 :(得分：0)
问题是您需要启用运行时权限才能促进此类操作。
if (ContextCompat.checkSelfPermission(context,
Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(thisActivity,
new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
12000);
}
请阅读此页：https://developer.android.com/training/permissions/requesting.html 当应用程序变得可见时执行此检查，
答案 1 :(得分：0)
首先调用checkSelfPermission：
如果授予了权限，则获取位置
否则，转到下面的第2步。
请求许可：
int PERMISSION_REQ_LOCATION = 0100;
requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, PERMISSION_REQ_LOCATION);
在请求权限后重写此方法以检查结果：
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
switch (requestCode) {
case PERMISSION_REQ_LOCATION:
//TODO fetch location
break;
default:
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
}