我正在使用Google Fused Location API来获取设备的当前位置。出于测试目的，我仅将位置保存到TextView中。我在菜单选择事件中调用LocationActivity，但是每当我单击菜单选项时，应用程序就会崩溃。
我已经查看了错误日志，但是没有成功解决问题。请帮我。
获取活动：
public class LocationServiceActivity extends AppCompatActivity implements GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener, LocationListener {
Location mLocation;
TextView latLng;
GoogleApiClient mGoogleApiClient;
private static final int PLAY_SERVICES_RESOLUTION_REQUEST = 9000;
private LocationRequest mLocationRequest;
private long UPDATE_INTERVAL = 15000;
private long FASTEST_INTERVAL = 5000;
private ArrayList permissionsToRequest;
private ArrayList permissionsRejected = new ArrayList();
private ArrayList permissions = new ArrayList();
private final static int ALL_PERMISSIONS_RESULT = 101;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
latLng = (TextView) findViewById(R.id.latLng);
permissions.add(ACCESS_FINE_LOCATION);
permissions.add(ACCESS_COARSE_LOCATION);
permissionsToRequest = findUnAskedPermissions(permissions);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (permissionsToRequest.size() > 0)
requestPermissions((String[]) permissionsToRequest.toArray(new String[permissionsToRequest.size()]), ALL_PERMISSIONS_RESULT);
}
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addApi(LocationServices.API)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.build();
}
private ArrayList findUnAskedPermissions(ArrayList wanted) {
ArrayList result = new ArrayList();
for (Object perm : wanted) {
if (!hasPermission((String) perm)) {
result.add(perm);
}
}
return result;
}
@Override
protected void onStart() {
super.onStart();
if (!mGoogleApiClient.isConnected()) {
mGoogleApiClient.connect();
}
}
@Override
protected void onResume() {
super.onResume();
if (!checkPlayServices()) {
latLng.setText("Please install Google Play services.");
}
}
@SuppressLint("MissingPermission")
@Override
public void onConnected(@Nullable Bundle bundle) {
if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
mLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
if(mLocation!=null)
{
latLng.setText("Latitude : "+mLocation.getLatitude()+" , Longitude : "+mLocation.getLongitude());
}
startLocationUpdates();
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
}
@Override
public void onLocationChanged(Location location) {
if(location!=null)
latLng.setText("Latitude : "+location.getLatitude()+" , Longitude : "+location.getLongitude());
}
private boolean checkPlayServices() {
GoogleApiAvailability apiAvailability = GoogleApiAvailability.getInstance();
int resultCode = apiAvailability.isGooglePlayServicesAvailable(this);
if (resultCode != ConnectionResult.SUCCESS) {
if (apiAvailability.isUserResolvableError(resultCode)) {
apiAvailability.getErrorDialog(this, resultCode, PLAY_SERVICES_RESOLUTION_REQUEST)
.show();
} else
finish();
return false;
}
return true;
}
@SuppressLint("MissingPermission")
protected void startLocationUpdates() {
mLocationRequest = new LocationRequest();
mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
mLocationRequest.setInterval(UPDATE_INTERVAL);
mLocationRequest.setFastestInterval(FASTEST_INTERVAL);
if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
Toast.makeText(getApplicationContext(), "Enable Permissions", Toast.LENGTH_LONG).show();
}
LocationServices.FusedLocationApi.requestLocationUpdates(
mGoogleApiClient, mLocationRequest, this);
}
private boolean hasPermission(String permission) {
if (canMakeSmores()) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
return (checkSelfPermission(permission) == PackageManager.PERMISSION_GRANTED);
}
}
return true;
}
private boolean canMakeSmores() {
return (Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP_MR1);
}
@TargetApi(Build.VERSION_CODES.M)
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
switch (requestCode) {
case ALL_PERMISSIONS_RESULT:
for (Object perms : permissionsToRequest) {
if (!hasPermission((String) perms)) {
permissionsRejected.add(perms);
}
}
if (permissionsRejected.size() > 0) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (shouldShowRequestPermissionRationale((String) permissionsRejected.get(0))) {
showMessageOKCancel("These permissions are mandatory for the application. Please allow access.",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,int which) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
requestPermissions((String[]) permissionsRejected.toArray(new String[permissionsRejected.size()]), ALL_PERMISSIONS_RESULT);
}
}
});
return;
}
}
}
break;
}
}
private void showMessageOKCancel(String message, DialogInterface.OnClickListener okListener) {
new AlertDialog.Builder(LocationServiceActivity.this)
.setMessage(message)
.setPositiveButton("OK", okListener)
.setNegativeButton("Cancel", null)
.create()
.show();
}
@Override
protected void onDestroy() {
super.onDestroy();
stopLocationUpdates();
}
public void stopLocationUpdates()
{
if (mGoogleApiClient.isConnected()) {
LocationServices.FusedLocationApi
.removeLocationUpdates(mGoogleApiClient, this);
mGoogleApiClient.disconnect();
}
}
}
错误日志：
--------- beginning of crash
2019-02-05 13:07:39.549 5653-5653/com.local.xspac.shopapp E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.local.xspac.shopapp, PID: 5653
java.lang.NoClassDefFoundError: Failed resolution of: Lcom/google/android/gms/common/api/Api$zzf;
at com.google.android.gms.location.LocationServices.<clinit>(Unknown Source)
at com.local.xspac.shopapp.LocationServiceActivity.onCreate(LocationServiceActivity.java:59)
at android.app.Activity.performCreate(Activity.java:6679)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2618)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2726)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1477)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6119)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.common.api.Api$zzf" on path: DexPathList[[zip file "/data/app/com.local.xspac.shopapp-1/base.apk", zip file "/data/app/com.local.xspac.shopapp-1/split_lib_dependencies_apk.apk", zip file "/data/app/com.local.xspac.shopapp-1/split_lib_slice_0_apk.apk", zip file "/data/app/com.local.xspac.shopapp-1/split_lib_slice_1_apk.apk", zip file "/data/app/com.local.xspac.shopapp-1/split_lib_slice_2_apk.apk", zip file "/data/app/com.local.xspac.shopapp-1/split_lib_slice_3_apk.apk", zip file "/data/app/com.local.xspac.shopapp-1/split_lib_slice_4_apk.apk", zip file "/data/app/com.local.xspac.shopapp-1/split_lib_slice_5_apk.apk", zip file "/data/app/com.local.xspac.shopapp-1/split_lib_slice_6_apk.apk", zip file "/data/app/com.local.xspac.shopapp-1/split_lib_slice_7_apk.apk", zip file "/data/app/com.local.xspac.shopapp-1/split_lib_slice_8_apk.apk", zip file "/data/app/com.local.xspac.shopapp-1/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/data/app/com.local.xspac.shopapp-1/lib/x86, /system/lib, /vendor/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at com.google.android.gms.location.LocationServices.<clinit>(Unknown Source)
at com.local.xspac.shopapp.LocationServiceActivity.onCreate(LocationServiceActivity.java:59)
at android.app.Activity.performCreate(Activity.java:6679)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2618)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2726)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1477)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6119)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
Build.gradle（应用模块）：
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.local.xspac.shopapp"
minSdkVersion 15
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
//noinspection GradleCompatible
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
//adding volley library
implementation 'com.android.volley:volley:1.1.0'
testImplementation 'junit:junit:4.12'
implementation 'com.github.bumptech.glide:glide:3.7.0'
implementation 'com.google.firebase:firebase-core:16.0.1'
implementation 'com.google.firebase:firebase-messaging:17.3.4'
implementation files('libs/activation.jar')
implementation files('libs/additionnal.jar')
implementation files('libs/mail.jar')
implementation 'com.squareup.picasso:picasso:2.5.0'
implementation 'com.google.android.gms:play-services-auth:16.0.0'
implementation 'com.google.firebase:firebase-auth:16.0.3'
}
apply plugin: 'com.google.gms.google-services'
项目级别分级：
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.3.0'
classpath 'com.google.gms:google-services:4.0.1'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
答案 0 :(得分：1)
使用此依赖项
项目摇篮
classpath 'com.google.gms:google-services:4.2.0'
App Gradle
implementation 'com.google.firebase:firebase-core:16.0.6'
implementation 'com.google.firebase:firebase-messaging:17.3.4'
implementation 'com.google.firebase:firebase-auth:16.1.0'
implementation 'com.google.android.gms:play-services-auth:16.0.0'
implementation 'com.google.android.gms:play-services-maps:16.0.0'
implementation 'com.google.android.gms:play-services-location:16.0.0'
implementation 'com.google.android.gms:play-services-places:16.0.0'
这里是您可以用来定位最新版本的所有依赖项