ApiTokenActivity.java（class）
package nl.empoly.android.safetysupport;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import org.json.JSONException;
import java.io.IOException;
import nl.empoly.android.safetysupport.api.ApiApitoken;
import nl.empoly.android.safetysupport.api.ApiAssignment;
import nl.empoly.android.safetysupport.api.ApiClient;
import nl.empoly.android.safetysupport.api.ApiClientLocation;
import nl.empoly.android.safetysupport.api.ApiContact;
import nl.empoly.android.safetysupport.api.ApiWarehouse;
import nl.empoly.android.safetysupport.entity.EntApitoken;
import nl.empoly.android.safetysupport.entity.EntAssignment;
import nl.empoly.android.safetysupport.entity.EntClient;
import nl.empoly.android.safetysupport.entity.EntClientLocation;
import nl.empoly.android.safetysupport.entity.EntContact;
import nl.empoly.android.safetysupport.entity.EntWarehouse;
public class ApiTokenActivity extends ActionBarActivity {
ApiApitoken mApiApitoken;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.apitoken_activity);
final TextView editText = (TextView) findViewById(R.id.description);
Button button = (Button) findViewById(R.id.create_button);
final Button button1 = (Button) findViewById(R.id.delete_button);
Button login_button = (Button) findViewById(R.id.login_button);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final String description = editText.getText().toString();
new CreateApiTokenTask().execute(description);
button1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
new DeleteApiTokenTask().execute(mApiApitoken);
}
});
}
});
login_button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(ApiTokenActivity.this,LogInActivity.class));
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
public class CreateApiTokenTask extends AsyncTask<String, Void, ApiApitoken> {
@Override
protected ApiApitoken doInBackground(String... params) {
try {
return ApiApitoken.create(params[0]);
} catch (IOException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(ApiApitoken ApiApitoken) {
TextView ID = (TextView) findViewById(R.id.TAG_IDtv);
TextView Description = (TextView) findViewById(R.id.TAG_Dtv);
TextView Token = (TextView) findViewById(R.id.TAG_Ttv);
TextView ExpiresAt = (TextView) findViewById(R.id.TAG_EAtv);
TextView RefreshToken = (TextView) findViewById(R.id.TAG_RTtv);
ID.setText(ApiApitoken.id);
Description.setText(ApiApitoken.description);
Token.setText(ApiApitoken.token);
ExpiresAt.setText(ApiApitoken.expires_at.toString());
RefreshToken.setText(ApiApitoken.refresh_token);
EntApitoken dbEntApitoken = new EntApitoken();
dbEntApitoken.setSyncId(ApiApitoken.id);
dbEntApitoken.setDescription(ApiApitoken.description);
dbEntApitoken.setToken(ApiApitoken.token);
dbEntApitoken.setExpiresAt(ApiApitoken.expires_at);
dbEntApitoken.setRefreshToken(ApiApitoken.refresh_token);
dbEntApitoken.save();
mApiApitoken = ApiApitoken;
}
}
public class DeleteApiTokenTask extends AsyncTask<ApiApitoken, Void, Void> {
@Override
protected Void doInBackground(ApiApitoken... params) {
try {
ApiApitoken.delete(params[0]);
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
public void execute(String description) {
}
}
public class ListClientsTask extends AsyncTask<String, Void, ApiClient> {
@Override
protected ApiClient doInBackground(String... params) {
try {
return ApiClient.list(params[0]);
} catch (JSONException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
protected void onPostExecute(ApiClient ApiClient) {
EntClient dbEntClient = new EntClient();
dbEntClient.setSyncId(ApiClient.id);
dbEntClient.setExternalId(ApiClient.external_id);
dbEntClient.setSearchCode(ApiClient.search_code);
dbEntClient.setCompanyName(ApiClient.company_name);
dbEntClient.setPhoneNumber(ApiClient.phone_number);
dbEntClient.setFaxNumber(ApiClient.fax_number);
dbEntClient.setEmailAddress(ApiClient.email_address);
dbEntClient.setArchived(ApiClient.archived);
dbEntClient.setUpdatedAt(ApiClient.updated_at);
dbEntClient.setUrl(ApiClient.url);
dbEntClient.setAddressesId(ApiClient.address_id);
dbEntClient.setAddressesType(ApiClient.address_type);
dbEntClient.setAddressesLine1(ApiClient.address_line1);
dbEntClient.setAddressesPostalCode(ApiClient.address_postal_code);
dbEntClient.setAddressesCity(ApiClient.address_city);
dbEntClient.setAddressesCountry(ApiClient.address_country);
dbEntClient.setAddressesUpdatedAt(ApiClient.address_updated_at);
dbEntClient.save();
}
}
public class GetClientsTask extends AsyncTask<String, Void, ApiClient> {
@Override
protected ApiClient doInBackground(String... params) {
try {
return ApiClient.get(params[0]);
} catch (JSONException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
}
public class ListClientlocationsTask extends AsyncTask<String, Void, ApiClientLocation> {
@Override
protected ApiClientLocation doInBackground(String... params) {
try {
return ApiClientLocation.list(params[0]);
} catch (JSONException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
protected void onPostExecute(ApiClientLocation ApiClientLocation) {
EntClientLocation dbEntClientLocation = new EntClientLocation();
dbEntClientLocation.setClientId(ApiClientLocation.client_id);
dbEntClientLocation.setExternalId(ApiClientLocation.external_id);
dbEntClientLocation.setName(ApiClientLocation.name);
dbEntClientLocation.setPhoneNumber(ApiClientLocation.phone_number);
dbEntClientLocation.setEmailAddress(ApiClientLocation.email_address);
dbEntClientLocation.setArchived(ApiClientLocation.archived);
dbEntClientLocation.setUpdatedAt(ApiClientLocation.updated_at);
dbEntClientLocation.setUrl(ApiClientLocation.url);
dbEntClientLocation.setClientId(ApiClientLocation.client_id);
dbEntClientLocation.setClientUpdatedAt(ApiClientLocation.client_updated_at);
dbEntClientLocation.setClientUrl(ApiClientLocation.client_url);
dbEntClientLocation.setAddressesId(ApiClientLocation.addresses_id);
dbEntClientLocation.setAddressesType(ApiClientLocation.addresses_type);
dbEntClientLocation.setAddressesLine1(ApiClientLocation.addresses_line1);
dbEntClientLocation.setAddressesPostalCode(ApiClientLocation.addresses_postal_code);
dbEntClientLocation.setAddressesCity(ApiClientLocation.addresses_city);
dbEntClientLocation.setAddressesCountry(ApiClientLocation.addresses_country);
dbEntClientLocation.setAddressesUpdatedAt(ApiClientLocation.addresses_updated_at);
dbEntClientLocation.save();
}
}
public class GetClientlocationsTask extends AsyncTask<String, Void, ApiClientLocation> {
@Override
protected ApiClientLocation doInBackground(String... params) {
try {
return ApiClientLocation.get(params[0]);
} catch (JSONException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
}
public class ListWarehousesTask extends AsyncTask<String, Void, ApiWarehouse> {
@Override
protected ApiWarehouse doInBackground(String... params) {
try {
return ApiWarehouse.list(params[0]);
} catch (JSONException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
protected void onPostExecute(ApiWarehouse ApiWarehouse) {
EntWarehouse dbEntWarehouse = new EntWarehouse();
dbEntWarehouse.setSyncId(ApiWarehouse.id);
dbEntWarehouse.setExternalId(ApiWarehouse.external_id);
dbEntWarehouse.setName(ApiWarehouse.name);
dbEntWarehouse.setLength(ApiWarehouse.length);
dbEntWarehouse.setWidth(ApiWarehouse.width);
dbEntWarehouse.setHeight(ApiWarehouse.height);
dbEntWarehouse.setRefrigerated(ApiWarehouse.refrigerated);
dbEntWarehouse.setTemperature(ApiWarehouse.temperature);
dbEntWarehouse.setSprinklers(ApiWarehouse.sprinklers);
dbEntWarehouse.setHazardousSubstances(ApiWarehouse.hazardous_substances);
dbEntWarehouse.setImperviousFloor(ApiWarehouse.impervious_floor);
dbEntWarehouse.setFireAlarm(ApiWarehouse.fire_alarm);
dbEntWarehouse.setFloorHeating(ApiWarehouse.floor_heating);
dbEntWarehouse.setFloorHeatingDepth(ApiWarehouse.floor_heating_depth);
dbEntWarehouse.setInspectionFrequency(ApiWarehouse.inspection_frequency);
dbEntWarehouse.setArchived(ApiWarehouse.archived);
dbEntWarehouse.setUpdatedAt(ApiWarehouse.updated_at);
dbEntWarehouse.setUrl(ApiWarehouse.url);
dbEntWarehouse.setSurface(ApiWarehouse.surface);
dbEntWarehouse.setClientLocation(ApiWarehouse.client_location);
dbEntWarehouse.save();
}
}
public class GetWarehousesTask extends AsyncTask<String, Void, ApiWarehouse> {
@Override
protected ApiWarehouse doInBackground(String... params) {
try {
return ApiWarehouse.get(params[0]);
} catch (JSONException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
}
public class ListContactsTask extends AsyncTask<String, Void, ApiContact> {
@Override
protected ApiContact doInBackground(String... params) {
try {
return ApiContact.list(params[0]);
} catch (JSONException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
protected void onPostExecute(ApiContact ApiContact) {
EntContact dbEntContact = new EntContact();
dbEntContact.setSyncId(ApiContact.id);
dbEntContact.setExternalId(ApiContact.external_id);
dbEntContact.setName(ApiContact.name);
dbEntContact.setPhoneNumber(ApiContact.phone_number);
dbEntContact.setMobileNumber(ApiContact.mobile_number);
dbEntContact.setEmailAddress(ApiContact.email_address);
dbEntContact.setUpdatedAt(ApiContact.updated_at);
dbEntContact.setUrl(ApiContact.url);
dbEntContact.setClient(ApiContact.client);
dbEntContact.setClientLocation(ApiContact.client_location_id);
dbEntContact.save();
}
}
public class GetContactsTask extends AsyncTask<String, Void, ApiContact> {
@Override
protected ApiContact doInBackground(String... params) {
try {
return ApiContact.get(params[0]);
} catch (JSONException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
}
public class ListAssignmentsTask extends AsyncTask<String, Void, ApiAssignment> {
@Override
protected ApiAssignment doInBackground(String... params) {
try {
return ApiAssignment.list(params[0]);
} catch (JSONException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
protected void onPostExecute(ApiAssignment ApiAssignment) {
EntAssignment dbEntAssignment = new EntAssignment();
dbEntAssignment.setSyncId(ApiAssignment.id);
dbEntAssignment.setExternalId(ApiAssignment.external_id);
dbEntAssignment.setType(ApiAssignment.type);
dbEntAssignment.setDate(ApiAssignment.date);
dbEntAssignment.setRemarks(ApiAssignment.remarks);
dbEntAssignment.setArchived(ApiAssignment.archived);
dbEntAssignment.setUpdatedAt(ApiAssignment.updated_at);
dbEntAssignment.setUrl(ApiAssignment.url);
dbEntAssignment.setClientLocationId(ApiAssignment.client_location_id);
dbEntAssignment.setClientLocationUpdatedAt(ApiAssignment.client_location_updated_at);
dbEntAssignment.setClientLocationUrl(ApiAssignment.client_location_url);
dbEntAssignment.setArchived(ApiAssignment.archived);
dbEntAssignment.setUpdatedAt(ApiAssignment.updated_at);
dbEntAssignment.setUrl(ApiAssignment.url);
dbEntAssignment.setWarehousesId(ApiAssignment.warehouses_id);
dbEntAssignment.setWarehousesUpdatedAt(ApiAssignment.warehouses_updated_at);
dbEntAssignment.setWarehousesUrl(ApiAssignment.warehouses_url);
dbEntAssignment.setEmployeesId(ApiAssignment.employees_id);
dbEntAssignment.setEmployeesUpdatedAt(ApiAssignment.employees_updated_at);
dbEntAssignment.setEmployeesUrl(ApiAssignment.employees_url);
dbEntAssignment.setStatusesId(ApiAssignment.statuses_id);
dbEntAssignment.setStatusesStatus(ApiAssignment.statuses_status);
dbEntAssignment.setStatusesCreatedAt(ApiAssignment.statuses_created_at);
dbEntAssignment.setStatusesUpdatedAt(ApiAssignment.statuses_updated_at);
dbEntAssignment.setStatusesUrl(ApiAssignment.statuses_url);
dbEntAssignment.save();
}
public class GetAssignmentTask extends AsyncTask<String, Void, ApiAssignment> {
@Override
protected ApiAssignment doInBackground(String... params) {
try {
return ApiAssignment.get(params[0]);
} catch (JSONException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
}
}
}
logcat（错误）：
02-19 13：58：18.144 7472-7472 / nl.empoly.android.safetysupport E / AndroidRuntime：致命异常：主要 处理：nl.empoly.android.safetysupport，PID：7472 显示java.lang.NullPointerException at nl.empoly.android.safetysupport.ApiTokenActivity $ CreateApiTokenTask.onPostExecute（ApiTokenActivity.java:98） at nl.empoly.android.safetysupport.ApiTokenActivity $ CreateApiTokenTask.onPostExecute（ApiTokenActivity.java:76） 在android.os.AsyncTask.finish（AsyncTask.java:632） 在android.os.AsyncTask.access $ 600（AsyncTask.java:177） 在android.os.AsyncTask $ InternalHandler.handleMessage（AsyncTask.java:645） 在android.os.Handler.dispatchMessage（Handler.java:102） 在android.os.Looper.loop（Looper.java:146） 在android.app.ActivityThread.main（ActivityThread.java:5748） at java.lang.reflect.Method.invokeNative（Native Method） 在java.lang.reflect.Method.invoke（Method.java:515） 在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run（ZygoteInit.java:1291） 在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:1107） 在dalvik.system.NativeStart.main（本地方法）
第98行的代码错误： ID.setText（ApiApitoken.id）;
第76行的代码错误：
公共类CreateApiTokenTask扩展了AsyncTask {
有人可以帮助我，我仍然是新手程序员:(
任何帮助都会非常感激......
很抱歉没有具体代码:(
基本上，当我在Android Studio中运行我的应用程序时，以及在我的应用程序执行期间，应用程序运行正常。但是当我输入说明字段时，例如test6然后按下Create按钮，应用程序崩溃了！我得到了以下结果。
答案 0 :(得分：0)
我认为ID只是null而你正在调用setText（）。在那里设置断点并确保。
如果是这种情况可能是其他地方的问题，请在需要帮助时发布apitoken_activity.xml