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2014/10/16 ¤W¤È 08:18:03
android Programming Glossary: looperThis Handler class should be static or leaks might occur: IncomingHandler http://stackoverflow.com/questions/11407943/this-handler-class-should-be-static-or-leaks-might-occur-incominghandler Handler objects for the same thread all share a common Looper object which they post messages to and read from. As messages..
AsyncTask and Looper.prepare() error http://stackoverflow.com/questions/4187960/asynctask-and-looper-prepare-error and Looper.prepare error I have the following code class OverlayTask extends.. I can't seem to work out why and where to put this Looper.prepare . Is it needed java.lang.ExceptionInInitializerError.. Can't create handler inside thread that has not called Looper.prepare at android.os.Handler. init Handler.java 121 at android.os.AsyncTask..
Android Can't create handler inside thread that has not called Looper.prepare() http://stackoverflow.com/questions/5009816/android-cant-create-handler-inside-thread-that-has-not-called-looper-prepare Can't create handler inside thread that has not called Looper.prepare I have an activity and in that I have a class. text.. Can't create handler inside thread that has not called Looper.prepare How can i handle this error edited error 02 15 22 52.. Can't create handler inside thread that has not called Looper.prepare 02 15 22 52 43.483 ERROR AndroidRuntime 5370 at android.os.Handler...
Good way of getting the user's location in Android http://stackoverflow.com/questions/6181704/good-way-of-getting-the-users-location-in-android if getLocationQuality bestLocation LocationQuality.GOOD Looper.prepare setLooper Looper.myLooper Define a listener that responds.. bestLocation LocationQuality.GOOD Looper.prepare setLooper Looper.myLooper Define a listener that responds to location.. bestLocation LocationQuality.GOOD Looper.prepare setLooper Looper.myLooper Define a listener that responds to location updates..
Inflate a view in a background thread http://stackoverflow.com/questions/6691311/inflate-a-view-in-a-background-thread explicit requirement for View s to not use Handler s and Looper s in their constructors you can't assume inflating Views from.. View lifetime and will process all messages using its Looper . Which might result in crash later on. share improve this..
android: What is the purpose of Looper and how to use it? http://stackoverflow.com/questions/7597742/android-what-is-the-purpose-of-looper-and-how-to-use-it What is the purpose of Looper and how to use it I am new to Android. I want to know what.. to use it I am new to Android. I want to know what the Looper class does and also how to use it. I have read the Android Looper.. class does and also how to use it. I have read the Android Looper class documentation but I am unable to completely understand..
Android: got CalledFromWrongThreadException in onPostExecute() - How could it be? http://stackoverflow.com/questions/10426120/android-got-calledfromwrongthreadexception-in-onpostexecute-how-could-it-be circumstances an application can have more than one looper and therefore more than one UI thread side note i am using the.. poorly crafted shortcut you decide to execute on the main looper .. example Log.i AsyncTask Handler created ON Thread.currentThread..
How to raise a toast in AsyncTask, I am prompted to used the Looper http://stackoverflow.com/questions/2837676/how-to-raise-a-toast-in-asynctask-i-am-prompted-to-used-the-looper How can I do that android android asynctask toast looper share improve this question onPostExecute executes on UI..
Android: OutofMemoryError: bitmap size exceeds VM budget with no reason I can see http://stackoverflow.com/questions/3037027/android-outofmemoryerror-bitmap-size-exceeds-vm-budget-with-no-reason-i-can-se I have a simple cache of 4 slots that prefetches in a looper about 1 image left and 1 image right to the displayed image..
LocationManager requestLocationUpdates and timertask in android http://stackoverflow.com/questions/3589963/locationmanager-requestlocationupdates-and-timertask-in-android request location updates from the location manager from a looper thread that means that when the timer task is called you have..
http://stackoverflow.com/questions/3614663/cant-create-handler-inside-thread-that-has-not-called-looper-prepare-inside-a Any ideas guys java android runtime error progressdialog looper share improve this question The method show must be called..
AsyncTask and Looper.prepare() error http://stackoverflow.com/questions/4187960/asynctask-and-looper-prepare-error null android android asynctask looper share improve this question Long story AsyncTask internally..
How to create a Looper thread, then send it a message immediately? http://stackoverflow.com/questions/4838207/how-to-create-a-looper-thread-then-send-it-a-message-immediately elegant way out of this android multithreading handler looper share improve this question Eventual solution minus error.. of HandlerThread.getLooper which blocks until the looper has been initialized. Incidentally this is similar to my solution.. thread is running but that it has actually created a looper and the way to do so is to store the looper in a private field...
Handlers, MessageQueue, Looper, do they all run on the UI thread? http://stackoverflow.com/questions/5193913/handlers-messagequeue-looper-do-they-all-run-on-the-ui-thread to it's loop. This is valid until you call quit on the looper. Regarding the android UI thread At some point probably before..
Need Help in Downloading in Background Images in Android? http://stackoverflow.com/questions/6303365/need-help-in-downloading-in-background-images-in-android extends Handler public ServiceHandler Looper looper super looper @Override public void handleMessage Message msg.. extends Handler public ServiceHandler Looper looper super looper @Override public void handleMessage Message msg downloadFile..
Accessing UI thread handler from a service http://stackoverflow.com/questions/6369287/accessing-ui-thread-handler-from-a-service I know the following The UI thread has its own handler and looper Any message will be put into the message queue of the UI thread.. will be put into the message queue of the UI thread The looper picks up the event and passed it to the handler The handler..
android: What is the purpose of Looper and how to use it? http://stackoverflow.com/questions/7597742/android-what-is-the-purpose-of-looper-and-how-to-use-it and also by giving a simple example if possible android looper share improve this question What is Looper Looper is a class..
How to handle Handler messages when activity/fragment is paused http://stackoverflow.com/questions/8040280/how-to-handle-handler-messages-when-activity-fragment-is-paused null Send a message with a delay onto the message looper fragment.handler.sendMessageDelayed fragment.handler.obtainMessage..
android - get gps location via a service http://stackoverflow.com/questions/8828639/android-get-gps-location-via-a-service service i came into a problem as it seems to only work for looper threads or something like that . as i've searched the internet..
access (faster polling) accelerometer via NativeActivity NDK http://stackoverflow.com/questions/8989686/access-faster-polling-accelerometer-via-nativeactivity-ndk .c files that i try to make based on sensor.h and looper.h #include jni.h #include string.h #include android sensor.h.. android sensor.h #include android log.h #include android looper.h #define TAG accelerondk #define LOGI ... __android_log_print.. sensorManager ASensorManager_getInstance ALooper looper ALooper_forThread if looper NULL looper ALooper_prepare ALOOPER_PREPARE_ALLOW_NON_CALLBACKS..
This Handler class should be static or leaks might occur: IncomingHandler http://stackoverflow.com/questions/11407943/this-handler-class-should-be-static-or-leaks-might-occur-incominghandler is not static it will have a reference to your Service object. Handler objects for the same thread all share a common Looper object which they post messages to and read from. As messages contain target Handler as long as there are messages with..
AsyncTask and Looper.prepare() error http://stackoverflow.com/questions/4187960/asynctask-and-looper-prepare-error and Looper.prepare error I have the following code class OverlayTask extends AsyncTask Void Void Void @Override public void onPreExecute.. but I am seeing a lot of errors appearing on the dev console. I can't seem to work out why and where to put this Looper.prepare . Is it needed java.lang.ExceptionInInitializerError at com.test.appname.FinderMain 1.gotLocation FinderMain.java.. Timer.java 289 Caused by java.lang.RuntimeException Can't create handler inside thread that has not called Looper.prepare at android.os.Handler. init Handler.java 121 at android.os.AsyncTask InternalHandler. init AsyncTask.java 421 at..
Android Can't create handler inside thread that has not called Looper.prepare() http://stackoverflow.com/questions/5009816/android-cant-create-handler-inside-thread-that-has-not-called-looper-prepare Can't create handler inside thread that has not called Looper.prepare I have an activity and in that I have a class. text new Dynamictext ... text.setText txt in my DynamicText java.. ERROR AndroidRuntime 5176 Caused by java.lang.RuntimeException Can't create handler inside thread that has not called Looper.prepare How can i handle this error edited error 02 15 22 52 43.483 ERROR AndroidRuntime 5370 java.lang.ExceptionInInitializerError.. ERROR AndroidRuntime 5370 Caused by java.lang.RuntimeException Can't create handler inside thread that has not called Looper.prepare 02 15 22 52 43.483 ERROR AndroidRuntime 5370 at android.os.Handler. init Handler.java 121 02 15 22 52 43.483 ERROR..
Good way of getting the user's location in Android http://stackoverflow.com/questions/6181704/good-way-of-getting-the-users-location-in-android .getLastKnownLocation LocationManager.NETWORK_PROVIDER if getLocationQuality bestLocation LocationQuality.GOOD Looper.prepare setLooper Looper.myLooper Define a listener that responds to location updates LocationListener locationListener.. LocationManager.NETWORK_PROVIDER if getLocationQuality bestLocation LocationQuality.GOOD Looper.prepare setLooper Looper.myLooper Define a listener that responds to location updates LocationListener locationListener new LocationListener.. LocationManager.NETWORK_PROVIDER if getLocationQuality bestLocation LocationQuality.GOOD Looper.prepare setLooper Looper.myLooper Define a listener that responds to location updates LocationListener locationListener new LocationListener public..
Inflate a view in a background thread http://stackoverflow.com/questions/6691311/inflate-a-view-in-a-background-thread doesn't do this. Overall I'd say that because there is no explicit requirement for View s to not use Handler s and Looper s in their constructors you can't assume inflating Views from non UI thread is safe. You can actually create HandlerThread..
android: What is the purpose of Looper and how to use it? http://stackoverflow.com/questions/7597742/android-what-is-the-purpose-of-looper-and-how-to-use-it What is the purpose of Looper and how to use it I am new to Android. I want to know what the Looper class does and also how to use it. I have read the.. What is the purpose of Looper and how to use it I am new to Android. I want to know what the Looper class does and also how to use it. I have read the Android Looper class documentation but I am unable to completely understand.. use it I am new to Android. I want to know what the Looper class does and also how to use it. I have read the Android Looper class documentation but I am unable to completely understand it. I have seen it in a lot of places but unable to understand..
Android: got CalledFromWrongThreadException in onPostExecute() - How could it be? http://stackoverflow.com/questions/10426120/android-got-calledfromwrongthreadexception-in-onpostexecute-how-could-it-be is another android framework bug... what is happening in certain circumstances an application can have more than one looper and therefore more than one UI thread side note i am using the term UI thread in the loosest of senses in this answer since.. the correct UI thread they decided to use hocus pocus or a poorly crafted shortcut you decide to execute on the main looper .. example Log.i AsyncTask Handler created ON Thread.currentThread .getId Log.i Main Looper Looper.getMainLooper .getThread..
How to raise a toast in AsyncTask, I am prompted to used the Looper http://stackoverflow.com/questions/2837676/how-to-raise-a-toast-in-asynctask-i-am-prompted-to-used-the-looper create handler inside thread that has not called Looper.prepare How can I do that android android asynctask toast looper share improve this question onPostExecute executes on UI thread or publishProgress in your doinbackground and protected..
Android: OutofMemoryError: bitmap size exceeds VM budget with no reason I can see http://stackoverflow.com/questions/3037027/android-outofmemoryerror-bitmap-size-exceeds-vm-budget-with-no-reason-i-can-se ImageView with the JPG. In order to speed up the user experience I have a simple cache of 4 slots that prefetches in a looper about 1 image left and 1 image right to the displayed image and keeps them in a 4 slot HashMap. The platform I am using..
LocationManager requestLocationUpdates and timertask in android http://stackoverflow.com/questions/3589963/locationmanager-requestlocationupdates-and-timertask-in-android the solution to this as the documentation says you can only request location updates from the location manager from a looper thread that means that when the timer task is called you have to obtain a message and send the message to a handler and..
http://stackoverflow.com/questions/3614663/cant-create-handler-inside-thread-that-has-not-called-looper-prepare-inside-a try downloadSpinnerProgressDialog.show I receive the error. Any ideas guys java android runtime error progressdialog looper share improve this question The method show must be called from the User Interface UI thread while doInBackground runs..
AsyncTask and Looper.prepare() error http://stackoverflow.com/questions/4187960/asynctask-and-looper-prepare-error net_loc null locationResult.gotLocation net_loc return locationResult.gotLocation null android android asynctask looper share improve this question Long story AsyncTask internally uses a Handler . A handler basically allows you to post..
How to create a Looper thread, then send it a message immediately? http://stackoverflow.com/questions/4838207/how-to-create-a-looper-thread-then-send-it-a-message-immediately thread but this does not seem to be possible. What is the most elegant way out of this android multithreading handler looper share improve this question Eventual solution minus error checking thanks to CommonsWare class Worker extends HandlerThread.. worker.handler.sendMessage ... This works thanks to the semantics of HandlerThread.getLooper which blocks until the looper has been initialized. Incidentally this is similar to my solution #1 above since the HandlerThread is implemented roughly..
Handlers, MessageQueue, Looper, do they all run on the UI thread? http://stackoverflow.com/questions/5193913/handlers-messagequeue-looper-do-they-all-run-on-the-ui-thread make a looping thread do something is to post a message to it's loop. This is valid until you call quit on the looper. Regarding the android UI thread At some point probably before any activities and the like are created the framework has..
Need Help in Downloading in Background Images in Android? http://stackoverflow.com/questions/6303365/need-help-in-downloading-in-background-images-in-android that receives messages from the thread private final class ServiceHandler extends Handler public ServiceHandler Looper looper super looper @Override public void handleMessage Message msg downloadFile showNotification getResources .getString R.string.notification_catalog_downloaded.. messages from the thread private final class ServiceHandler extends Handler public ServiceHandler Looper looper super looper @Override public void handleMessage Message msg downloadFile showNotification getResources .getString R.string.notification_catalog_downloaded..
Accessing UI thread handler from a service http://stackoverflow.com/questions/6369287/accessing-ui-thread-handler-from-a-service for which I need to access the handler of the UI thread. I know the following The UI thread has its own handler and looper Any message will be put into the message queue of the UI thread The looper picks up the event and passed it to the handler.. The UI thread has its own handler and looper Any message will be put into the message queue of the UI thread The looper picks up the event and passed it to the handler The handler handles the message and sends the specfic event to the UI I..
android: What is the purpose of Looper and how to use it? http://stackoverflow.com/questions/7597742/android-what-is-the-purpose-of-looper-and-how-to-use-it purpose. Can anyone help me by defining the purpose of Looper and also by giving a simple example if possible android looper share improve this question What is Looper Looper is a class which is used to execute the Messages Runnables in a queue...
How to handle Handler messages when activity/fragment is paused http://stackoverflow.com/questions/8040280/how-to-handle-handler-messages-when-activity-fragment-is-paused State fragment State fm.findFragmentByTag State.TAG if fragment null Send a message with a delay onto the message looper fragment.handler.sendMessageDelayed fragment.handler.obtainMessage MSG_WHAT MSG_SHOW_DIALOG value DELAY public void..
android - get gps location via a service http://stackoverflow.com/questions/8828639/android-get-gps-location-via-a-service easy to get gps locations but when i got to do it via a service i came into a problem as it seems to only work for looper threads or something like that . as i've searched the internet for a solution i've found out that many people got the same..
access (faster polling) accelerometer via NativeActivity NDK http://stackoverflow.com/questions/8989686/access-faster-polling-accelerometer-via-nativeactivity-ndk i tried to access sensor via NativeActivity with NDK by generating .c files that i try to make based on sensor.h and looper.h #include jni.h #include string.h #include android sensor.h #include android log.h #include android looper.h #define TAG.. and looper.h #include jni.h #include string.h #include android sensor.h #include android log.h #include android looper.h #define TAG accelerondk #define LOGI ... __android_log_print ANDROID_LOG_INFO TAG __VA_ARGS__ #define LOGD ... __android_log_print.. JNIEnv env jclass clazz ASensorManager sensorManager ASensorManager_getInstance ALooper looper ALooper_forThread if looper NULL looper ALooper_prepare ALOOPER_PREPARE_ALLOW_NON_CALLBACKS ASensorRef accelerometerSensor..
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