我正在尝试在应用程序被杀死后创建一个服务并等待移动连接到wifi后完成任务并停止服务，当我发送任务时应用程序没有被杀死但是之后工作正常我杀了服务不会退出的应用程序
我有三个课程，我开始服务的主要课程
public class MainActivity extends AppCompatActivity {
//----------------------USER FIELDS -------------------->
Spinner Category;
EditText Description;
EditText Address;
EditText Date;
EditText Time;
EditText Name;
EditText Email;
EditText Phone;
//-----------------------CONSTANTS---------------------->
private static final int NUM_PAGES = 5;
private static final int CAMERA_VALUE = 301;
//----------------------IMAGE DIRECTORY----------------->
String root;
String imageFolderPath;
String imageName;
Uri fileUri;
ArrayList<Uri> fileUris = new ArrayList<>();
ArrayList<String> filepaths;
ArrayList<String> photoPaths;
List<String> Images = new ArrayList<>();
//----------------------FRAGMENTS----------------------->
SplashFragment splashFragment = new SplashFragment();
DescFragment descFragment = new DescFragment();
InfoFragment infoFragment = new InfoFragment();
ChooserFragment chooserFragment = new ChooserFragment();
SuccessFragment successFragment = new SuccessFragment();
//-------------------DATABASE HANDLER------------------->
DatabaseHandler db = new DatabaseHandler(this);
//---------------------DIALOGS-------------------------->
Dialog infoDialog;
Dialog languageDialog;
//-----------------SHARED PREFS------------------------->
SharedPreferences prefs = null;
//--------------IMAGEVIEW PREVIEWS---------------------->
ArrayList<ImageView> img = new ArrayList<>();
//-----------------COUNTERS----------------------------->
private static int image_counter = 0;
//----------VIEWPAGER AND VIEWPAGER ADAPTER------------->
private ViewPager mPager;
private PagerAdapter mPagerAdapter;
TextInputLayout description_layout;
TextInputLayout spinner_layout;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//-------------CHECK FOR PERMISSIONS---------------->
if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED)
{
ActivityCompat.requestPermissions(this, new String[] { Manifest.permission.INTERNET, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA}, 0);
}
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
findViewById(R.id.mainLayout).requestFocus();
mPager = (ViewPager) findViewById(R.id.pager);
mPagerAdapter = new ScreenSlidePagerAdapter(getSupportFragmentManager());
mPager.setAdapter(mPagerAdapter);
prefs = getSharedPreferences("co.milingona.socialactivist", MODE_PRIVATE);
selectLanguge(prefs.getString("language","sq"), false);
if(prefs.getBoolean("firstTimeRunning",true))
{
createShortcut();
prefs.edit().putBoolean("firstTimeRunning",false).commit();
}
}
@Override
protected void onResume()
{
super.onResume();
}
private void restartActivity()
{
Intent intent = getIntent();
finish();
startActivity(intent);
}
private void selectLanguge(String language, boolean restart)
{
prefs.edit().putString("language", language).commit();
String languageToLoad = language; // your language
Locale locale = new Locale(languageToLoad);
Locale.setDefault(locale);
Configuration config = new Configuration();
config.setLocale(locale);
getBaseContext().getResources().updateConfiguration(config,
getBaseContext().getResources().getDisplayMetrics());
if( restart == true ) {
restartActivity();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu)
{
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public void onBackPressed() {
if (mPager.getCurrentItem() == 0) {
super.onBackPressed();
}
else if(mPager.getCurrentItem() == 4)
{
restartActivity();
} else {
mPager.setCurrentItem(mPager.getCurrentItem() - 1);
}
}
public void splash_raporto(View view)
{
mPager.setCurrentItem(mPager.getCurrentItem() + 1);
}
public void desc_prev(View view)
{
if (view != null) {
InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
}
mPager.setCurrentItem(mPager.getCurrentItem() - 1);
}
public void desc_next(View view)
{
description_layout= (TextInputLayout) findViewById(R.id.description_layout);
spinner_layout= (TextInputLayout) findViewById(R.id.spinner_layout);
boolean continuePager = true;
Category = (Spinner)findViewById(R.id.category);
Description = (EditText)findViewById(R.id.description);
if(Description.getText().toString().trim().length() == 0)
{
description_layout.setError(getText(R.string.description));
continuePager=false;
} else {
description_layout.setErrorEnabled(false);
}
if(Category.getSelectedItem().toString().trim() == "Zgjidhni Kategorinë")
{
spinner_layout.setError(getText(R.string.category));
continuePager=false;
}
if(continuePager == true)
{
mPager.setCurrentItem(mPager.getCurrentItem()+1);
if (view != null) {
InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
}
}
}
public void info_prev(View view)
{
mPager.setCurrentItem(mPager.getCurrentItem()-1);
}
public void info_next(View view)
{
Address = (EditText)findViewById(R.id.address);
this.Date = (EditText)findViewById(R.id.date);
Time = (EditText)findViewById(R.id.time);
Name = (EditText)findViewById(R.id.name);
Email = (EditText)findViewById(R.id.email);
Phone = (EditText)findViewById(R.id.phone);
if(Email.getText().toString().trim().length()!=0)
{
if(isValidEmail(Email.getText().toString()))
{
mPager.setCurrentItem(mPager.getCurrentItem()+1);
}
else{
Email.setBackground(getResources().getDrawable(R.drawable.border_bottom_red));
}
}
else {
mPager.setCurrentItem(mPager.getCurrentItem() + 1);
Email.setBackground(getResources().getDrawable(R.drawable.border_bottom_white));
}
if (view != null) {
InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
}
}
public void choose_dergo(View view)
{
mPager.setCurrentItem(mPager.getCurrentItem()+1);
for (Uri uri: fileUris) {
Images.add(uri.toString());
}
db.addReport(new Report(Category.getSelectedItem().toString(),Description.getText().toString(),"Mitrovice", Address.getText().toString(),this.Date.getText().toString() + " " + Time.getText().toString(), Name.getText().toString(), Email.getText().toString(), Phone.getText().toString(), Images.toArray(new String[Images.size()])));
if(CheckConnectivityService.running==false)
{
Intent stickyService=new Intent(this, CheckConnectivityService.class);
startService(stickyService);
CheckConnectivityService.running=true;
}
}
public void camera_intent(View view)
{
if(image_counter<5)
{
root = Environment.getExternalStorageDirectory()
+ "/SocialAcitivist";
imageFolderPath = root + "/Images";
File imagesFolder = new File(imageFolderPath);
imagesFolder.mkdirs();
Date d = new Date();
CharSequence s = DateFormat.format("hh-mm-ss", d.getTime());
imageName = "img-" + s + ".jpg";
File image = new File(imageFolderPath, imageName);
fileUri = Uri.fromFile(image);
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
startActivityForResult(takePictureIntent, CAMERA_VALUE);
}
else{
Toast.makeText(this,"First delete some pictures below",Toast.LENGTH_SHORT).show();
}
}
public void gallery_intent(View view)
{
FilePickerBuilder.getInstance().setMaxCount(5-image_counter)
.setSelectedFiles(filepaths)
.setActivityTheme(R.style.AppTheme)
.pickPhoto(this);
}
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
if (requestCode == CAMERA_VALUE) {
fileUris.add(fileUri);
image_counter++;
}
if (requestCode == FilePickerConst.REQUEST_CODE_PHOTO && resultCode == RESULT_OK && data != null)
{
photoPaths = new ArrayList<>();
photoPaths.addAll(data.getStringArrayListExtra(FilePickerConst.KEY_SELECTED_PHOTOS));
for (String photopath : photoPaths)
{
fileUris.add(Uri.fromFile(new File(photopath)));
image_counter++;
}
}
img.add(0, (ImageView)findViewById(R.id.prev1));
img.add(1, (ImageView)findViewById(R.id.prev2));
img.add(2, (ImageView)findViewById(R.id.prev3));
img.add(3, (ImageView)findViewById(R.id.prev4));
img.add(4, (ImageView)findViewById(R.id.prev5));
int img_counter=0;
for(Uri uri:fileUris)
{
img.get(img_counter).setImageURI(uri);
img_counter++;
}
}
public void showTimePickerDialog(View v)
{
DialogFragment newFragment = new TimePickerFragment();
newFragment.show(getSupportFragmentManager(), "timePicker");
}
public void showDatePickerDialog(View v)
{
DialogFragment newFragment = new DatePickerFragment();
newFragment.show(getSupportFragmentManager(), "datePicker");
}
public void OpenInformation(MenuItem item)
{
infoDialog=new Dialog(this,R.style.AppTheme_Dark);
infoDialog.setContentView(R.layout.infromation_layout);
infoDialog.show();
}
public void close_info_dialog(View view)
{
infoDialog.dismiss();
}
public void OpenLanguages(MenuItem item)
{
languageDialog=new Dialog(this, R.style.AppTheme_Dark_Dialog);
languageDialog.setContentView(R.layout.language_layout);
languageDialog.show();
}
public void ChangeLanguage(View view)
{
switch (view.getId())
{
case R.id.sq:
if( prefs.getString("language","en").equalsIgnoreCase("en"))
{
selectLanguge("sq", true);
}
break;
case R.id.en:
if( prefs.getString("language","sq").equalsIgnoreCase("sq"))
{
selectLanguge("en", true);
}
break;
}
languageDialog.dismiss();
}
public void removeItem(View view)
{
int img_counter=0;
try{
switch (view.getId())
{
case R.id.prev1:
fileUris.remove(0);
for(Uri uri:fileUris)
{
img.get(img_counter).setImageURI(uri);
img_counter++;
}
img.get(img_counter).setImageURI(null);
break;
case R.id.prev2:
fileUris.remove(1);
for(Uri uri:fileUris)
{
img.get(img_counter).setImageURI(uri);
img_counter++;
}
img.get(img_counter).setImageURI(null);
break;
case R.id.prev3:
fileUris.remove(2);
for(Uri uri:fileUris)
{
img.get(img_counter).setImageURI(uri);
img_counter++;
}
img.get(img_counter).setImageURI(null);
break;
case R.id.prev4:
fileUris.remove(3);
for(Uri uri:fileUris)
{
img.get(img_counter).setImageURI(uri);
img_counter++;
}
img.get(img_counter).setImageURI(null);
break;
case R.id.prev5:
fileUris.remove(4);
for(Uri uri:fileUris)
{
img.get(img_counter).setImageURI(uri);
img_counter++;
}
img.get(img_counter).setImageURI(null);
break;
}
image_counter--;
}
catch(Exception e){}
}
public void openURL(View view) {
String url;
switch (view.getId())
{
case R.id.facebook: url="https://www.facebook.com";
break;
case R.id.twitter: url="https://www.twitter.com";
break;
case R.id.wordpress: url="https://www.facebook.com";
break;
default: url="https://www.facebook.com";
break;
}
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
startActivity(i);
}
public static class TimePickerFragment extends DialogFragment
implements TimePickerDialog.OnTimeSetListener
{
@Override
public Dialog onCreateDialog(Bundle savedInstanceState)
{
final Calendar c = Calendar.getInstance();
int hour = c.get(Calendar.HOUR_OF_DAY);
int minute = c.get(Calendar.MINUTE);
return new TimePickerDialog(getActivity(), R.style.AppTheme_Dark_Dialog, this, hour, minute,
DateFormat.is24HourFormat(getActivity()));
}
public void onTimeSet(TimePicker view, int hourOfDay, int minute)
{
EditText editTime=(EditText)getActivity().findViewById(R.id.time);
editTime.setText(hourOfDay+":"+minute);
}
}
public static class DatePickerFragment extends DialogFragment
implements DatePickerDialog.OnDateSetListener
{
@Override
public Dialog onCreateDialog(Bundle savedInstanceState)
{
final Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
DatePickerDialog dialog = new DatePickerDialog(getActivity(), R.style.AppTheme_Dark_Dialog, this, year, month, day);
dialog.getDatePicker().setMaxDate(new Date().getTime());
return dialog;
}
public void onDateSet(DatePicker view, int year, int month, int day)
{
EditText editDate=(EditText)getActivity().findViewById(R.id.date);
editDate.setText(year+"-"+month+"-"+day);
}
}
private boolean isValidEmail(String email)
{
String EMAIL_PATTERN = "^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@"
+ "[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$";
Pattern pattern = Pattern.compile(EMAIL_PATTERN);
Matcher matcher = pattern.matcher(email);
return matcher.matches();
}
private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter
{
public ScreenSlidePagerAdapter(FragmentManager fm)
{
super(fm);
}
@Override
public Fragment getItem(int position)
{
switch (position)
{
case 0: return splashFragment;
case 1: return descFragment;
case 2: return infoFragment;
case 3: return chooserFragment;
case 4: return successFragment;
default: return splashFragment;
}
}
@Override
public int getCount()
{
return NUM_PAGES;
}
}
private void createShortcut()
{
final Intent shortcutIntent = new Intent(this, MainActivity.class);
final Intent intent = new Intent();
intent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent);
intent.putExtra(Intent.EXTRA_SHORTCUT_NAME, getString(R.string.app_name));
intent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, Intent.ShortcutIconResource.fromContext(this, R.mipmap.ic_launcher));
intent.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
sendBroadcast(intent);
}
}
然后我得到了服务类
public final class CheckConnectivityService extends IntentService {
Context context = this;
NetworkConnectivityCheck networkConnectivityCheck = new NetworkConnectivityCheck();
public Thread backgroundThread;
public static boolean running = false;
public static boolean stop = false;
public static Intent _intent;
public CheckConnectivityService() {
super("S");
}
@Override
protected void onHandleIntent(Intent intent) {
_intent=intent;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
_intent=intent;
networkConnectivityCheck.register(context);
this.backgroundThread.start();
running = false;
return START_STICKY;
}
@Override
public void onDestroy() {
networkConnectivityCheck.unregister(context);
backgroundThread.interrupt();
}
@Override
public void onCreate() {
this.backgroundThread = new Thread(myTask);
}
private Runnable myTask = new Runnable() {
public void run() {
while (running == true) {
if (stop == true) {
stop = false;
stopSelf();
}
}
}
};
}
和我的第三课，我检查是否可以使用互联网，如果是，则上传表格并停止服务
public class NetworkConnectivityCheck {
public boolean internetAvailable = false;
private BroadcastReceiver networkChangeReceiver;
List<Report> reports;
NetworkConnectivityCheck(){
this.networkChangeReceiver = new BroadcastReceiver()
{
@Override
public void onReceive(Context context, Intent intent) {
int networkState = NetworkUtil.getConnectionStatus(context);
DatabaseHandler db=new DatabaseHandler(context);
if(networkState == NetworkUtil.NOT_CONNECTED){
internetAvailable = false;
} else if(networkState == NetworkUtil.MOBILE){
internetAvailable = true;
//MainActivity.tvStatus.setText("ONLINE"); // you do something here.
} else if(networkState == NetworkUtil.WIFI){
internetAvailable = true;
if(db.getReportsCount()!=0){
reports=db.getAllReports();
for(Report report : reports){
Upload upload=new Upload(report);
Thread doInBackground = new Thread(upload);
doInBackground.start();
}
db.deleteAll();
CheckConnectivityService.running=true;
CheckConnectivityService.stop=true;
}
}
}
};
}
public void register(Context context)
{
context.registerReceiver(networkChangeReceiver, new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
}
public void unregister(Context context)
{
context.unregisterReceiver(networkChangeReceiver);
}
public class Upload implements Runnable
{
Report report;
public Upload(Report _report)
{
report=_report;
}
@Override
public void run() {
try {
MediaType MEDIA_TYPE_JPEG = MediaType.parse("image/jpeg");
OkHttpClient client = new OkHttpClient.Builder()
.connectTimeout(30, TimeUnit.SECONDS)
.writeTimeout(120, TimeUnit.SECONDS)
.readTimeout(20, TimeUnit.SECONDS)
.build();
MultipartBody.Builder mRequestBody = new MultipartBody.Builder().setType(MultipartBody.FORM);
mRequestBody.addFormDataPart("category", report.getCategory());
mRequestBody.addFormDataPart("description", report.getDescription());
mRequestBody.addFormDataPart("city", report.getCity());
mRequestBody.addFormDataPart("address", report.getAddress());
mRequestBody.addFormDataPart("datetime", report.getDateTime());
mRequestBody.addFormDataPart("name", report.getName());
mRequestBody.addFormDataPart("email", report.getEmail());
mRequestBody.addFormDataPart("phone", report.getPhone());
if(report.getImages()[0].trim().length()!=0) {
ArrayList<Uri> fileUris = new ArrayList<>();
for (String uri : report.getImages())
{
fileUris.add(Uri.parse(uri));
}
for (Uri FileUri : fileUris)
{
File file = new File(FileUri.getPath());
RequestBody imageBody = RequestBody.create(MEDIA_TYPE_JPEG, file);
mRequestBody.addFormDataPart("images[]", FileUri.getLastPathSegment(), imageBody);
}
}
RequestBody requestBody = mRequestBody.build();
Request request = new Request.Builder()
.addHeader("Content-Type","text/json; Charset=UTF-8")
.header("Authorization", "Basic bWlsaW5nb25hOlN0")
.url("http://LINK.com")
.post(requestBody)
.build();
Response response = client.newCall(request).execute();
} catch (Exception e)
{
e.printStackTrace();
}
Thread.currentThread().interrupt();
return;
}
}
}
这是NetworkUtil类，以防你想了解更多
public class NetworkUtil
{
public static final int NOT_CONNECTED = 0;
public static final int WIFI = 1;
public static final int MOBILE = 2;
public static int getConnectionStatus(Context context)
{
ConnectivityManager connectivityManager =
(ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
if(networkInfo != null)
{
if(networkInfo.getType() == ConnectivityManager.TYPE_WIFI)
{
return WIFI;
}
if(networkInfo.getType() == ConnectivityManager.TYPE_MOBILE)
{
return MOBILE;
}
}
return NOT_CONNECTED;
}
}
答案 0 :(得分：0)
不知何故，您只需注册一个BroadcastReceiver即可获得连接意图。无需实现这样的逻辑。
在app Receiver中使用以下过滤器：
<intent-filter>
<action android:name="android.net.wifi.WIFI_STATE_CHANGED"/>
<action android:name="android.net.wifi.STATE_CHANGE"/>
</intent-filter>
按照以下帖子：
BroadcastReceiver when wifi or 3g network state changed
希望有所帮助......
答案 1 :(得分：0)
您可以使用意向服务上传您的数据，这些数据将从专用的网络更改广播接收器调用，甚至可能也会点击提交按钮。
该服务将类似于：
public class UploadService extends IntentService {
@Override
protected void onHandleIntent(Intent workIntent) {
int networkState = NetworkUtil.getConnectionStatus(context);
DatabaseHandler db=new DatabaseHandler(context);
if(networkState == NetworkUtil.NOT_CONNECTED){
internetAvailable = false;
} else if(networkState == NetworkUtil.MOBILE){
internetAvailable = true;
//MainActivity.tvStatus.setText("ONLINE"); // you do something here.
} else if(networkState == NetworkUtil.WIFI){
internetAvailable = true;
if(db.getReportsCount()!=0){
reports=db.getAllReports();
for(Report report : reports){
Upload upload=new Upload(report);
Thread doInBackground = new Thread(upload);
doInBackground.start();
}
db.deleteAll();
}
}
}
public class Upload implements Runnable {
Report report;
public Upload(Report _report)
{
report=_report;
}
@Override
public void run() {
try {
MediaType MEDIA_TYPE_JPEG = MediaType.parse("image/jpeg");
OkHttpClient client = new OkHttpClient.Builder()
.connectTimeout(30, TimeUnit.SECONDS)
.writeTimeout(120, TimeUnit.SECONDS)
.readTimeout(20, TimeUnit.SECONDS)
.build();
MultipartBody.Builder mRequestBody = new MultipartBody.Builder().setType(MultipartBody.FORM);
mRequestBody.addFormDataPart("category", report.getCategory());
mRequestBody.addFormDataPart("description", report.getDescription());
mRequestBody.addFormDataPart("city", report.getCity());
mRequestBody.addFormDataPart("address", report.getAddress());
mRequestBody.addFormDataPart("datetime", report.getDateTime());
mRequestBody.addFormDataPart("name", report.getName());
mRequestBody.addFormDataPart("email", report.getEmail());
mRequestBody.addFormDataPart("phone", report.getPhone());
if(report.getImages()[0].trim().length()!=0) {
ArrayList<Uri> fileUris = new ArrayList<>();
for (String uri : report.getImages())
{
fileUris.add(Uri.parse(uri));
}
for (Uri FileUri : fileUris)
{
File file = new File(FileUri.getPath());
RequestBody imageBody = RequestBody.create(MEDIA_TYPE_JPEG, file);
mRequestBody.addFormDataPart("images[]", FileUri.getLastPathSegment(), imageBody);
}
}
RequestBody requestBody = mRequestBody.build();
Request request = new Request.Builder()
.addHeader("Content-Type","text/json; Charset=UTF-8")
.header("Authorization", "Basic bWlsaW5nb25hOlN0")
.url("http://LINK.com")
.post(requestBody)
.build();
Response response = client.newCall(request).execute();
} catch (Exception e)
{
e.printStackTrace();
}
Thread.currentThread().interrupt();
return;
}
}
}
您可以在此处参阅此官方文档：Creating a background service