我的项目包括spinner。它必须GET数据并将数据放入此spinner内。但它没有成功地做到这一点。它在调试中显示null。
我尝试了几个不同的代码，我已在我的代码中作为评论向您展示。
修改：我添加了JSON个回复，SendMessageGetDataModel和Logcat。
SendMessagePage.java
public class SendMessagePage extends BaseActivity {
Spinner spinnerCategory;
private SendMessageGetModel sendMessageGetModel;
private ArrayList<SendMessageGetDataModel> category = new ArrayList<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_send_message_page);
getCategory();
spinnerCategory = (Spinner) findViewById(R.id.spinner);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, R.layout.spinner_text);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinnerCategory.setAdapter(adapter);
}
protected void getCategory(){
startProgress();
String auth = SessionHelper.getCustomerTokenWithBearer();
Call<SendMessageGetModel> call = ApiService.apiInterface.getCategory(auth);
call.enqueue((new Callback<SendMessageGetModel>() {
@Override
public void onResponse(Call<SendMessageGetModel> call, Response<SendMessageGetModel> response) {
stopProgress();
if (response.isSuccessful()){
/* if (response.body().getData() != null){
// safeBehaviourDetailDataModel = response.body().getData().get(0);
// sendMessageModel = response.body().getData.get(0);
title = response.body().getData();
spinnerCategory.getAdapter(title);
*/
// }
/* if (response.body() != null && response.body().getData().size() > 0){
category.addAll(response.body().getData());
}*/
if (response.body() !=null){
sendMessageGetModel = response.body();
Log.e("","sendMessageGetModel");
category = sendMessageGetModel.getData();
spinnerCategory.getAdapter();
}
}
}
@Override
public void onFailure(Call<SendMessageGetModel> call, Throwable t) {
}
}));
}
}
SendMessageGetDataModel.java
public class SendMessageGetDataModel {
private String Title;
private String Id;
public String getTitle() {
if (Title == null){
Title = "";
}
return Title;
}
public void setTitle(String title) {
Title = title;
}
public String getId() {
if (Id == null){
Id = "";
}
return Id;
}
public void setId(String id) {
Id = id;
}
}
Json回复
{
"Data": [
{
"Title": "Deneme",
"Id": 1
}
],
"IsSuccess": true,
"Error": null,
"Header": null
}
错误
06-18 09:41:45.351 19642-19651/? I/art: Background sticky concurrent mark sweep GC freed 21567(2MB) AllocSpace objects, 2(136KB) LOS objects, 5% free, 19MB/20MB, paused 5.386ms total 38.828ms
06-18 09:43:25.344 19642-19651/? I/art: Background sticky concurrent mark sweep GC freed 17908(1861KB) AllocSpace objects, 2(136KB) LOS objects, 5% free, 19MB/20MB, paused 5.780ms total 47.486ms
06-18 09:43:45.440 19642-19651/? I/art: Background partial concurrent mark sweep GC freed 33296(4MB) AllocSpace objects, 60(1296KB) LOS objects, 19% free, 16MB/20MB, paused 3.507ms total 128.808ms
06-18 09:45:19.816 13495-24930/? I/EventLogChimeraService: Aggregate from 1529313490974 (log), 1529313490974 (data)
06-18 09:45:20.174 13495-24934/? I/vgd: com.google.android.gms.security__nonwearable-SnetDropBoxIntentOperation -- metadata{ service_id: 0 }
06-18 09:46:11.570 13509-19182/? E/WakeLock: release without a matched acquire!
06-18 09:46:11.673 13509-13555/? I/oqs: 51-GetConfigurationSnapshotOperationCall -- metadata{ service_id: 0 }
06-18 09:46:11.685 13509-13555/? I/oqs: 51-CommitToConfigurationOperationCall -- metadata{ service_id: 0 }
06-18 09:46:12.005 13509-24956/? W/Conscrypt: Could not set socket write timeout: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at com.google.android.gms.org.conscrypt.Platform.setSocketWriteTimeout(:com.google.android.gms@12685026@12.6.85 (040700-197041431):13)
Caused by: android.system.ErrnoException: setsockopt failed: EBADF (Bad file descriptor)
at libcore.io.Posix.setsockoptTimeval(Native Method)
at libcore.io.ForwardingOs.setsockoptTimeval(ForwardingOs.java:157)
06-18 09:46:12.163 13509-24956/? W/Conscrypt: Could not set socket write timeout: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at com.google.android.gms.org.conscrypt.Platform.setSocketWriteTimeout(:com.google.android.gms@12685026@12.6.85 (040700-197041431):13)
Caused by: android.system.ErrnoException: setsockopt failed: EBADF (Bad file descriptor)
06-18 09:46:12.164 13509-24956/? W/Conscrypt: at libcore.io.Posix.setsockoptTimeval(Native Method)
at libcore.io.ForwardingOs.setsockoptTimeval(ForwardingOs.java:157)
06-18 09:46:14.583 24961-24961/? W/art: Unexpected CPU variant for X86 using defaults: x86
06-18 09:46:14.591 19642-5074/? I/ActivityManager: Start proc 24961:com.google.android.talk/u0a56 for service com.google.android.talk/com.google.android.apps.hangouts.concurrent.impl.GcmTriggeredNotifier
06-18 09:46:14.853 24961-24961/? I/Babel_telephony: TeleModule.onApplicationCreate
06-18 09:46:14.857 24961-24983/? I/Babel_SMS: MmsConfig: mnc/mcc: 310/260
06-18 09:46:14.859 24961-24983/? I/Babel_SMS: MmsConfig.loadMmsSettings
06-18 09:46:14.864 24961-24983/? I/Babel_SMS: MmsConfig.loadDeviceMmsSettings from API: userAgent=GoldfishNexus, uaProfUrl=http://gsm.lge.com/html/gsm/Nexus5-M3.xml
MmsConfig.loadFromDatabase
06-18 09:46:14.864 24961-24961/? I/Babel_App: Startup - clean
06-18 09:46:14.890 24961-24983/? E/SQLiteLog: (1) no such table: mmsconfig
06-18 09:46:14.891 24961-24983/? I/Babel_SMS: MmsConfig: no mmsconfig table android.database.sqlite.SQLiteException: no such table: mmsconfig (code 1): , while compiling: SELECT key, value, type FROM mmsconfig WHERE numeric=?
MmsConfig.loadFromResources
06-18 09:46:14.894 24961-24983/? E/Babel_SMS: canonicalizeMccMnc: invalid mccmnc nullnull
06-18 09:46:14.894 24961-24983/? W/Babel_SMS: MmsConfig: invalid key=userAgent or type=string
MmsConfig: invalid key=uaProfUrl or type=string
06-18 09:46:14.894 24961-24983/? I/Babel_SMS: MmsConfig.loadMmsSettings: userAgent=GoldfishNexus, uaProfUrl=http://gsm.lge.com/html/gsm/Nexus5-M3.xml
06-18 09:46:14.933 24961-24961/? D/Babel_SmsDep: disabled
06-18 09:46:14.937 24961-24961/? D/Babel_SmsDepStand: count:3
06-18 09:46:14.942 24961-24961/? D/Babel_SmsDep: disabled
06-18 09:46:14.990 24961-24961/? I/Babel_ConcService: Binding ConcurrentService
06-18 09:46:15.071 24961-24992/? I/Babel_ConcService: Scheduling delay with GcmNetworkManager of 101506 s for task geyaccount_reg_renewal_263362168_4 and tag network_connectivity_wakeup:persisted
06-18 09:46:15.086 24961-24992/? I/Babel_ConcService: Scheduling delay with GcmNetworkManager of 82799 s for task ghqDB_CLEANUP_401102596_4 and tag :persisted
06-18 09:46:15.092 24961-24994/? I/Babel_ConcService: Acquired partial wake lock to keep ConcurrentService alive
06-18 09:46:15.096 24961-24994/? I/Babel_ConcService: Released partial wake lock as ConcurrentService became idle
06-18 09:46:15.101 24961-24997/? I/Babel_ConcService: Acquired partial wake lock to keep ConcurrentService alive
06-18 09:46:15.103 13509-13520/? E/NetworkScheduler.ATC: Received callback from client for task that is already complete. ComponentInfo{com.google.android.talk/com.google.android.apps.hangouts.concurrent.impl.GcmTriggeredNotifier} :persisted
06-18 09:46:15.132 24961-25000/? D/Babel_SmsDepStand: count:3
06-18 09:46:15.132 24961-25000/? D/Babel_SmsDepNotif: not sms
06-18 09:46:15.132 24961-25000/? D/Babel_SmsDepUtil: imp:-1:3686
06-18 09:46:15.137 24961-25000/? I/Babel: Invalid account: 0 isEmptyName: true nameEqualsGaiaId: false
Invalid account: 1 isEmptyName: true nameEqualsGaiaId: false
06-18 09:46:15.153 24961-25003/? I/Babel: Deleting: false for 0
06-18 09:46:15.154 24961-25003/? I/Babel: Deleting: false for 1
06-18 09:46:15.165 24961-25002/? D/Babel_SmsDep: disabled
06-18 09:46:15.184 24961-25000/? D/Babel_Notif_Persistent: PersistentMessageNotifier.cancelOngoingNotification
06-18 09:46:15.185 24961-25000/? D/Babel_Notif_SMS: cancelOngoingNotification
06-18 09:46:15.195 24961-25000/? I/Babel_ConcService: Released partial wake lock as ConcurrentService became idle
答案 0 :(得分：1)
尝试此解决方案： -
1）在声明微调ID
后首先调用getCategory()
spinnerCategory = (Spinner) findViewById(R.id.spinner);
getCategory();
2）使用此Response类而不是SendMessageGetDataModel
public class ResponseClass {
public boolean isResult() {
return result;
}
public void setResult(boolean result) {
this.result = result;
}
@SerializedName("IsSuccess")
private boolean result;
public String getError() {
return Error;
}
public void setError(String error) {
Error = error;
}
public String getHeader() {
return Header;
}
public void setHeader(String header) {
Header = header;
}
@SerializedName("Error")
private String Error;
@SerializedName("Header")
private String Header;
public ArrayList<SpinnerModalClass> getSpinnerModalClassArrayList() {
return spinnerModalClassArrayList;
}
public void setSpinnerModalClassArrayList(ArrayList<SpinnerModalClass> couponsListingModalArrayList) {
this.spinnerModalClassArrayList = couponsListingModalArrayList;
}
@SerializedName("Data")
private ArrayList<SpinnerModalClass> spinnerModalClassArrayList;
public class SpinnerModalClass {
public String getTitle() {
return Title;
}
public void setTitle(String title) {
Title = title;
}
public String getId() {
return Id;
}
public void setId(String id) {
Id = id;
}
@SerializedName("Title")
private String Title;
@SerializedName("Id")
private String Id;
}
}
3）仅声明此arraylist
private ArrayList<ResponseClass.SpinnerModalClass> spinnerArrayList = new ArrayList<>();
4）然后在onResponse
if (response.body() !=null){
spinnerArrayList =response.body().getSpinnerModalClassArrayList();
// set adapter for spinner using this arraylist
}
5）如果不正确，请在API接口类中检查此方法，如路径 的getCategory
6）使用自定义适配器进行微调器
并使用此
Call<ResponseClass> call = ApiService.apiInterface.getCategory(auth);
Change the usage everywhere