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2014/10/16 ¤W¤È 08:10:27
android Programming Glossary: backgroundHow to handle screen orientation change when progress dialog and background thread active? http://stackoverflow.com/questions/1111980/how-to-handle-screen-orientation-change-when-progress-dialog-and-background-thre handle screen orientation change when progress dialog and background thread active My program does some network activity in a background.. thread active My program does some network activity in a background thread. Before starting it pops up a progress dialog. The dialog.. screen orientation changes while the dialog is up and the background thread is going . At this point the app either crashes or deadlocks..
Standard Android Button with a different color http://stackoverflow.com/questions/1521640/standard-android-button-with-a-different-color code in a file named custom_button.xml and then set background @drawable custom_button in your button view xml version 1.0..
How to discover memory usage of my application in Android http://stackoverflow.com/questions/2298208/how-to-discover-memory-usage-of-my-application-in-android close the system is coming to having no more memory for background processes thus needing to start killing needed processes like.. killer is tuned for a particular system to make sure that background processes are killed before the cached RAM is consumed too much..
Declaring a custom android UI element using XML http://stackoverflow.com/questions/2695646/declaring-a-custom-android-ui-element-using-xml wrap_content android layout_height wrap_content android background @android color transparent android text Test text android textColor.. com.example.android.apis.view.LabelView android background @drawable blue android layout_width fill_parent android layout_height..
How to send image via MMS in Android? http://stackoverflow.com/questions/2972845/how-to-send-image-via-mms-in-android context.registerReceiver reciver filter If connection background is ready build content and perform request. If you want to do..
Download a file with Android, and showing the progress in a ProgressDialog http://stackoverflow.com/questions/3028306/download-a-file-with-android-and-showing-the-progress-in-a-progressdialog in a dialog This method will allow you to execute some background processes and update the UI at the same time in this case we'll.. null The method above doInBackground runs always on a background thread. You shouldn't do any UI tasks there. On the other hand.. is a subclass of Service which spawns a thread to do background work from there you should know that a Service runs actually..
Make an HTTP request with android http://stackoverflow.com/questions/3505930/make-an-http-request-with-android show the webpage. If possible I even want to do it in the background in an BroadcastReceiver android httpwebrequest share improve..
Running multiple AsyncTasks at the same time — not possible? http://stackoverflow.com/questions/4068984/running-multiple-asynctasks-at-the-same-time-not-possible introduced AsyncTasks were executed serially on a single background thread. Starting with DONUT this was changed to a pool of threads..
android: check if a service is running http://stackoverflow.com/questions/600207/android-check-if-a-service-is-running check if a service is running How do I check if a background service on Android is running I want an android activity that..
Android Activity Life Cycle - What are all these methods for? http://stackoverflow.com/questions/8515936/android-activity-life-cycle-what-are-all-these-methods-for the activity lifecycle when an activity is going into the background but has not yet been killed. The counterpart to onResume . When.. When you click on Phone button the Activity goes to the background below events are called onPause onStop Exit the phone dialer.. by another activity are considered stopped or in the background. Stopped activities still try to retain their state and member..
http://stackoverflow.com/questions/9671546/asynctask-android-example am just trying to change the label after 5 seconds in the background process. This is my main.xml xml version 1.0 encoding utf 8..
http://stackoverflow.com/questions/12614542/maskingcrop-image-in-frame that how do I have achieve this Any idea hint welcome Background frame Mask Like this android image bitmap masking porter duff.. mImageView.setScaleType ScaleType.CENTER mImageView.setBackgroundResource R.drawable.background_frame see output Source can be..
How to parse complex JSON file in android http://stackoverflow.com/questions/13576676/how-to-parse-complex-json-file-in-android String String data null @Override protected String doInBackground String... url try data downloadUrl url 0 catch Exception.. url try data downloadUrl url 0 catch Exception e Log.d Background Task e.toString return data @Override protected void onPostExecute.. in a non ui thread @Override protected SimpleAdapter doInBackground String... strJson try jObject new JSONObject strJson 0 CountryJSONParser..
Rotating a bitmap using JNI & NDK http://stackoverflow.com/questions/14398670/rotating-a-bitmap-using-jni-ndk a bitmap using JNI NDK Background I've decided that since bitmaps take a lot of memory which can..
http://stackoverflow.com/questions/1979524/android-splashscreen extends AsyncTask String Void Object protected Object doInBackground String... args Log.i MyApp Background thread starting This.. Object doInBackground String... args Log.i MyApp Background thread starting This is where you would do all the work of..
http://stackoverflow.com/questions/2781593/background-image-placement Image Placement I'm trying to set my root LinearLayout element..
Background ListView becomes black when scrolling http://stackoverflow.com/questions/2833057/background-listview-becomes-black-when-scrolling ListView becomes black when scrolling I have created a specific..
Custom event listener on Android app http://stackoverflow.com/questions/2983250/custom-event-listener-on-android-app on the background thread which gets the RSS feed class Background processing class name .... ArrayList NewsUpdateListener listeners.. listener somewhere during initialization .... class Background processing class object .registerListener new OnNewsUpdateListener..
http://stackoverflow.com/questions/3237566/text-gallery-on-android to get the proper output. In Gallery View can not Change Background of Selected Item.and make it us rounded corner. Selected Item..
Background task, progress dialog, orientation change - is there any 100% working solution? http://stackoverflow.com/questions/3821423/background-task-progress-dialog-orientation-change-is-there-any-100-working task progress dialog orientation change is there any 100 working.. Step #6 Do not refer to the activity data member from doInBackground . If you follow the above recipe it will all work. onProgressUpdate..
Simple HTTP client example in Android [closed] http://stackoverflow.com/questions/4457492/simple-http-client-example-in-android program using the AndroidHttpClient as an HTTP client. Background there are not many examples easily found about how to use the..
http://stackoverflow.com/questions/4533440/android-listview-text-color the ListView TextColor to Black. Since i am using a White Background. Here is my MailActivity public class MailActivity extends ListActivity..
How can I use the animation framework inside the canvas? http://stackoverflow.com/questions/4938822/how-can-i-use-the-animation-framework-inside-the-canvas ballH int bgrW int bgrH int angle int bgrScroll int dBgrY Background scroll speed. float acc Bitmap ball bgr bgrReverse boolean reverseBackroundFirst.. angle 0 Start value for the rotation angle bgrScroll 0 Background scroll position dBgrY 1 Scrolling background speed fpsPaint.setTextSize..
Example: Android bi-directional network socket using AsyncTask http://stackoverflow.com/questions/5135438/example-android-bi-directional-network-socket-using-asynctask AsyncTask onPreExecute @Override protected Boolean doInBackground Void... params This runs on a different thread boolean result.. thread boolean result false try Log.i AsyncTask doInBackground Creating socket SocketAddress sockaddr new InetSocketAddress.. nos nsocket.getOutputStream Log.i AsyncTask doInBackground Socket created streams assigned Log.i AsyncTask doInBackground..
Android: Presenting a notification during a call? http://stackoverflow.com/questions/5427017/android-presenting-a-notification-during-a-call private void showToast Thread thread new Thread null doBackgroundThreadProcessing Background thread.start private Runnable doBackgroundThreadProcessing.. Thread thread new Thread null doBackgroundThreadProcessing Background thread.start private Runnable doBackgroundThreadProcessing new.. Background thread.start private Runnable doBackgroundThreadProcessing new Runnable public void run backgroundThreadProcessing..
Good way of getting the user's location in Android http://stackoverflow.com/questions/6181704/good-way-of-getting-the-users-location-in-android gonna use all providers and picking the best of them. Background of the app The app will collect the user's location at a fixed..
Why not use always android:configChanges=“keyboardHidden|orientation”? http://stackoverflow.com/questions/7818717/why-not-use-always-androidconfigchanges-keyboardhiddenorientation android layout share improve this question Quick Background By default when certain key configuration changes happen on..
http://stackoverflow.com/questions/7931032/android-process-scheduling last Foreground process Visible process Service process Background process Empty process Note Android ranks a process at the highest.. resources are needed for active or visible processes. Background Processes Processes hosting Activities that aren ™t visible and..
How to handle screen orientation change when progress dialog and background thread active? http://stackoverflow.com/questions/1111980/how-to-handle-screen-orientation-change-when-progress-dialog-and-background-thre to handle screen orientation change when progress dialog and background thread active My program does some network activity in a background thread. Before starting it pops up a progress dialog... orientation change when progress dialog and background thread active My program does some network activity in a background thread. Before starting it pops up a progress dialog. The dialog is dismissed on the handler. This all works fine except.. is dismissed on the handler. This all works fine except when screen orientation changes while the dialog is up and the background thread is going . At this point the app either crashes or deadlocks or gets into a weird stage where the app does not work..
Standard Android Button with a different color http://stackoverflow.com/questions/1521640/standard-android-button-with-a-different-color done in one file fairly easily. Put something like the following code in a file named custom_button.xml and then set background @drawable custom_button in your button view xml version 1.0 encoding utf 8 selector xmlns android http schemas.android.com..
How to discover memory usage of my application in Android http://stackoverflow.com/questions/2298208/how-to-discover-memory-usage-of-my-application-in-android usage. This is mostly there to help an application gauge how close the system is coming to having no more memory for background processes thus needing to start killing needed processes like services. For pure Java applications this should be of little.. getting into bad paging states the Android out of memory killer is tuned for a particular system to make sure that background processes are killed before the cached RAM is consumed too much by them to result in such paging. share improve this answer..
Declaring a custom android UI element using XML http://stackoverflow.com/questions/2695646/declaring-a-custom-android-ui-element-using-xml com.mycompany.projectname.MyCustomView android layout_width wrap_content android layout_height wrap_content android background @android color transparent android text Test text android textColor #FFFFFF app extraInformation My extra information Reference.. name textSize format dimension declare styleable custom_view_1.xml com.example.android.apis.view.LabelView android background @drawable blue android layout_width fill_parent android layout_height wrap_content app text Blue app textSize 20dp This..
How to send image via MMS in Android? http://stackoverflow.com/questions/2972845/how-to-send-image-via-mms-in-android filter.addAction ConnectivityManager.CONNECTIVITY_ACTION context.registerReceiver reciver filter If connection background is ready build content and perform request. If you want to do that using android's internal code please use this final SendReq..
Download a file with Android, and showing the progress in a ProgressDialog http://stackoverflow.com/questions/3028306/download-a-file-with-android-and-showing-the-progress-in-a-progressdialog for your app. 1. Use AsyncTask and show the download progress in a dialog This method will allow you to execute some background processes and update the UI at the same time in this case we'll update a progress bar . This is an example code declare.. null connection.disconnect finally wl.release return null The method above doInBackground runs always on a background thread. You shouldn't do any UI tasks there. On the other hand the onProgressUpdate and onPreExecute run on the UI thread.. will allow us to update our thread from a service IntentService is a subclass of Service which spawns a thread to do background work from there you should know that a Service runs actually in the same thread of your app when you extends Service you..
Make an HTTP request with android http://stackoverflow.com/questions/3505930/make-an-http-request-with-android an PHP page script on one of my website but I don't want to show the webpage. If possible I even want to do it in the background in an BroadcastReceiver android httpwebrequest share improve this question First of all request a permission to access..
Running multiple AsyncTasks at the same time — not possible? http://stackoverflow.com/questions/4068984/running-multiple-asynctasks-at-the-same-time-not-possible Here is what current 2012 01 27 API says on this When first introduced AsyncTasks were executed serially on a single background thread. Starting with DONUT this was changed to a pool of threads allowing multiple tasks to operate in parallel. After..
android: check if a service is running http://stackoverflow.com/questions/600207/android-check-if-a-service-is-running check if a service is running How do I check if a background service on Android is running I want an android activity that toggles the state of the service lets me turn it on if it..
Android Activity Life Cycle - What are all these methods for? http://stackoverflow.com/questions/8515936/android-activity-life-cycle-what-are-all-these-methods-for it. Always followed by onPause . onPause Called as part of the activity lifecycle when an activity is going into the background but has not yet been killed. The counterpart to onResume . When activity B is launched in front of activity A this callback.. loads the events are called as below onCreate onStart onResume When you click on Phone button the Activity goes to the background below events are called onPause onStop Exit the phone dialer below events will be called onRestart onStart onResume When.. and responsive. Stopped Activities that are completely obscured by another activity are considered stopped or in the background. Stopped activities still try to retain their state and member information for as long as possible but stopped activities..
http://stackoverflow.com/questions/9671546/asynctask-android-example @Override protected void onProgressUpdate Void... values I am just trying to change the label after 5 seconds in the background process. This is my main.xml xml version 1.0 encoding utf 8 LinearLayout xmlns android http schemas.android.com apk res..
http://stackoverflow.com/questions/12614542/maskingcrop-image-in-frame image to fit in my layout frame like above So just wondering that how do I have achieve this Any idea hint welcome Background frame Mask Like this android image bitmap masking porter duff share improve this question Finally got the solution..
How to parse complex JSON file in android http://stackoverflow.com/questions/13576676/how-to-parse-complex-json-file-in-android private class DownloadTask extends AsyncTask String Integer String String data null @Override protected String doInBackground String... url try data downloadUrl url 0 catch Exception e Log.d Background Task e.toString return data @Override.. null @Override protected String doInBackground String... url try data downloadUrl url 0 catch Exception e Log.d Background Task e.toString return data @Override protected void onPostExecute String result The parsing of the xml data is done.. JSONObject jObject Doing the parsing of xml data in a non ui thread @Override protected SimpleAdapter doInBackground String... strJson try jObject new JSONObject strJson 0 CountryJSONParser countryJsonParser new CountryJSONParser countryJsonParser.parse..
Rotating a bitmap using JNI & NDK http://stackoverflow.com/questions/14398670/rotating-a-bitmap-using-jni-ndk a bitmap using JNI NDK Background I've decided that since bitmaps take a lot of memory which can cause out of memory errors easily I will put the hard memory..
http://stackoverflow.com/questions/1979524/android-splashscreen my download task needs here private class DownloadTask extends AsyncTask String Void Object protected Object doInBackground String... args Log.i MyApp Background thread starting This is where you would do all the work of downloading your data.. class DownloadTask extends AsyncTask String Void Object protected Object doInBackground String... args Log.i MyApp Background thread starting This is where you would do all the work of downloading your data return replace this with your data object..
http://stackoverflow.com/questions/2781593/background-image-placement Image Placement I'm trying to set my root LinearLayout element which is set to fill_parent in both dimensions to have a..
Background ListView becomes black when scrolling http://stackoverflow.com/questions/2833057/background-listview-becomes-black-when-scrolling ListView becomes black when scrolling I have created a specific List which exists out of the following elements to create..
Custom event listener on Android app http://stackoverflow.com/questions/2983250/custom-event-listener-on-android-app News data to be passed Provide a registration facility on the background thread which gets the RSS feed class Background processing class name .... ArrayList NewsUpdateListener listeners new ArrayList NewsUpdateListener .... public void setOnNewsUpdateListener.. listener.onNewsUpdate News data to be passed .... Register listener somewhere during initialization .... class Background processing class object .registerListener new OnNewsUpdateListener onNewsUpdate News Data process news data runOnUIThread..
http://stackoverflow.com/questions/3237566/text-gallery-on-android ouput getting is in the below image I have Problem on Both to get the proper output. In Gallery View can not Change Background of Selected Item.and make it us rounded corner. Selected Item comes to the center horizontal of the Screen Automatically...
Background task, progress dialog, orientation change - is there any 100% working solution? http://stackoverflow.com/questions/3821423/background-task-progress-dialog-orientation-change-is-there-any-100-working task progress dialog orientation change is there any 100 working solution I download some data from internet in background.. your setter to associate your new activity with the task. Step #6 Do not refer to the activity data member from doInBackground . If you follow the above recipe it will all work. onProgressUpdate and onPostExecute are suspended between the start of..
Simple HTTP client example in Android [closed] http://stackoverflow.com/questions/4457492/simple-http-client-example-in-android example in Android closed Please provide a simple example program using the AndroidHttpClient as an HTTP client. Background there are not many examples easily found about how to use the AndroidHttpClient. android http share improve this question..
http://stackoverflow.com/questions/4533440/android-listview-text-color ListView Text Color i am trying to set the ListView TextColor to Black. Since i am using a White Background. Here is my MailActivity public class MailActivity extends ListActivity String listItems Compose Inbox Drafts Sent @Override..
How can I use the animation framework inside the canvas? http://stackoverflow.com/questions/4938822/how-can-i-use-the-animation-framework-inside-the-canvas int initialY float dY Ball vertical speed. int ballW int ballH int bgrW int bgrH int angle int bgrScroll int dBgrY Background scroll speed. float acc Bitmap ball bgr bgrReverse boolean reverseBackroundFirst boolean ballFingerMove Measure frames per.. dY 0 vertical speed initialY 100 Initial vertical position angle 0 Start value for the rotation angle bgrScroll 0 Background scroll position dBgrY 1 Scrolling background speed fpsPaint.setTextSize 30 Set thread getHolder .addCallback this setFocusable..
Example: Android bi-directional network socket using AsyncTask http://stackoverflow.com/questions/5135438/example-android-bi-directional-network-socket-using-asynctask Output Stream @Override protected void onPreExecute Log.i AsyncTask onPreExecute @Override protected Boolean doInBackground Void... params This runs on a different thread boolean result false try Log.i AsyncTask doInBackground Creating socket.. Boolean doInBackground Void... params This runs on a different thread boolean result false try Log.i AsyncTask doInBackground Creating socket SocketAddress sockaddr new InetSocketAddress 192.168.1.1 80 nsocket new Socket nsocket.connect sockaddr.. timeout if nsocket.isConnected nis nsocket.getInputStream nos nsocket.getOutputStream Log.i AsyncTask doInBackground Socket created streams assigned Log.i AsyncTask doInBackground Waiting for inital data... byte buffer new byte 4096 int..
Android: Presenting a notification during a call? http://stackoverflow.com/questions/5427017/android-presenting-a-notification-during-a-call reason. What do you think private Handler handler new Handler private void showToast Thread thread new Thread null doBackgroundThreadProcessing Background thread.start private Runnable doBackgroundThreadProcessing new Runnable public void run backgroundThreadProcessing.. private Handler handler new Handler private void showToast Thread thread new Thread null doBackgroundThreadProcessing Background thread.start private Runnable doBackgroundThreadProcessing new Runnable public void run backgroundThreadProcessing private.. void showToast Thread thread new Thread null doBackgroundThreadProcessing Background thread.start private Runnable doBackgroundThreadProcessing new Runnable public void run backgroundThreadProcessing private void backgroundThreadProcessing handler.post..
Good way of getting the user's location in Android http://stackoverflow.com/questions/6181704/good-way-of-getting-the-users-location-in-android This does not mean determine the best provider I'm probably gonna use all providers and picking the best of them. Background of the app The app will collect the user's location at a fixed interval let say every 10 minutes or so and send it to a..
Why not use always android:configChanges=“keyboardHidden|orientation”? http://stackoverflow.com/questions/7818717/why-not-use-always-androidconfigchanges-keyboardhiddenorientation fragments But if we don't use different layouts why not android android layout share improve this question Quick Background By default when certain key configuration changes happen on Android a common example is an orientation change Android fully..
http://stackoverflow.com/questions/7931032/android-process-scheduling importance the first process is most important and is killed last Foreground process Visible process Service process Background process Empty process Note Android ranks a process at the highest level it can based upon the importance of the components.. considered to be foreground processes and won ™t be killed unless resources are needed for active or visible processes. Background Processes Processes hosting Activities that aren ™t visible and that don ™t have any Services that have been started are considered..
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