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2014/10/16 ¤W¤È 08:17:51
android Programming Glossary: let'sSimpleCursorTreeAdapter and CursorLoader for ExpandableListView http://stackoverflow.com/questions/10611927/simplecursortreeadapter-and-cursorloader-for-expandablelistview the group cursor Then if i select one group in particular let's just call it group A it outputs 05 20 23 22 31.140 D GroupsAdapter.. is caught. Then if i select another group let's just call it group B it outputs 05 20 23 25 38.089 D GroupsAdapter..
AutoCompleteTextView backed by CursorLoader http://stackoverflow.com/questions/12854336/autocompletetextview-backed-by-cursorloader After making the selection to terminate the first token let's say the token was Joe Johnson then entering more characters..
Google maps api v2 custom infowindow like in original android google maps http://stackoverflow.com/questions/14123243/google-maps-api-v2-custom-infowindow-like-in-original-android-google-maps We want to reuse the info window for all the markers so let's create only one class member instance this.infoWindow ViewGroup..
How to pause / sleep thread or process in Android? http://stackoverflow.com/questions/1520887/how-to-pause-sleep-thread-or-process-in-android thisbutton.setBackgroundResource R.drawable.icon after let's say 1 second I need to go back to the previous stade of the..
How can I create an Android application in Android Studio that uses the Google Maps Api v2? http://stackoverflow.com/questions/16596715/how-can-i-create-an-android-application-in-android-studio-that-uses-the-google-m extras google google_play_services libproject 3 Now let's open Android Studio. On welcome screen press Import Project.. extras android support v13 android support v13.jar . So let's try to add it to our workspace. Go to View Open Module Settings..
How to maintain multi layers of ImageViews and keep their aspect ratio based on the largest one? http://stackoverflow.com/questions/16729169/how-to-maintain-multi-layers-of-imageviews-and-keep-their-aspect-ratio-based-on the whole screen would be the bottom in the Z coordinate let's call it the backgroundImageView while all of the rest appear..
overlay two images in android to set an imageview http://stackoverflow.com/questions/2739971/overlay-two-images-in-android-to-set-an-imageview code. Solution #1 via XML Create a new Drawable XML file let's call it layer.xml layer list xmlns android http schemas.android.com..
Launch custom android application from android browser http://stackoverflow.com/questions/2958701/launch-custom-android-application-from-android-browser use Uri. methods to extract the data you need. For example let's say the user clicked on a link to http twitter.com status 1234..
How to Read MMS Data in Android? http://stackoverflow.com/questions/3012287/how-to-read-mms-data-in-android will see how to retrieve each kind of data separately. So let's guess we have the MMS id in the mmsId variable. We can get detailed..
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 easily and delegate the hard work to the system. First let's see a utility method @param context used to check the device..
Android apps, communicating with a device plugged in the USB port http://stackoverflow.com/questions/3803871/android-apps-communicating-with-a-device-plugged-in-the-usb-port to the little USB port at the bottom of the phone and let's say this is a magical device that can do anything I don't quite..
How can I make a horizontal ListView in Android? [duplicate] http://stackoverflow.com/questions/3877040/how-can-i-make-a-horizontal-listview-in-android turn it on its side. rant Okay now that I'm done fuming let's talk about the problem itself. What I need is basically something..
Android: Want to set custom fonts for whole application not runtime http://stackoverflow.com/questions/4395309/android-want-to-set-custom-fonts-for-whole-application-not-runtime styleable resources Okay so with that out of the way let's get back to the parseAttributes method from earlier private.. add another one for typefaceStyle bold italic etc. but now let's see how to use it xml version 1.0 encoding utf 8 LinearLayout..
Difference between onStart() and onResume() http://stackoverflow.com/questions/4553605/difference-between-onstart-and-onresume first answer was pretty long I won't extend it further so let's try this... public DriveToWorkActivity extends Activity implements..
3D cube transition in Android [closed] http://stackoverflow.com/questions/5339907/3d-cube-transition-in-android question I suppose you want a transaction like this Ok let's say you have a viewswitcher with 2 children. You need to access.. distance 0 you already get a funny looking animation. Then let's rotate the image based on it's position. matrix.postRotate distance..
http://stackoverflow.com/questions/5794506/android-clear-the-back-stack Clear the back stack In Android I have some activities let's say A B C. In A I use this code to open B Intent intent new..
Google maps api v2 custom infowindow like in original android google maps http://stackoverflow.com/questions/14123243/google-maps-api-v2-custom-infowindow-like-in-original-android-google-maps marker infoWindow return infoWindow Let's add a couple of markers map.addMarker new MarkerOptions .title..
How can I capture a video recording on Android? http://stackoverflow.com/questions/1817742/how-can-i-capture-a-video-recording-on-android View v if recording recorder.stop recording false Let's initRecorder so we can record again initRecorder prepareRecorder..
How can I check the current status of the GPS receiver? http://stackoverflow.com/questions/2021176/how-can-i-check-the-current-status-of-the-gps-receiver to this problem all with the same negative result. Let's start by reiterating what doesn't work onStatusChanged doesn't.. one we actually use in our application is the following. Let's say we have this simple class that implements the GpsStatus.Listener..
How to add a button to PreferenceScreen http://stackoverflow.com/questions/2697233/how-to-add-a-button-to-preferencescreen in your layout and give it the ID @android id list . Let's say we call the layout file res layout main.xml . It could look..
How can I use the paid version of my app as a “key” to the free version? http://stackoverflow.com/questions/3062946/how-can-i-use-the-paid-version-of-my-app-as-a-key-to-the-free-version of my app as a &ldquo key&rdquo to the free version Let's say for example that I have some Android app that does X. The..
set the absolute position of a view in Android http://stackoverflow.com/questions/3294590/set-the-absolute-position-of-a-view-in-android share improve this question You can use RelativeLayout. Let's say you wanted a 30x40 ImageView at position 50 60 inside your..
Multiple Table SQLite DB Adapter(s) in Android? http://stackoverflow.com/questions/4063510/multiple-table-sqlite-db-adapters-in-android case usersinfo is accessed everything works as expected. Let's say I have another adapter for friend info that follows the..
How to programatically create and read WEP/EAP WiFi configurations in Android? http://stackoverflow.com/questions/4374862/how-to-programatically-create-and-read-wep-eap-wifi-configurations-in-android members inside a class Well this is what we need don't we Let's check the code example now which shows how to read a EAP WiFi..
http://stackoverflow.com/questions/4381033/multi-gradient-shapes Edit Here's how you could use this in your scenario. Let's say you have a Button defined in XML like so Button android..
Android: Want to set custom fonts for whole application not runtime http://stackoverflow.com/questions/4395309/android-want-to-set-custom-fonts-for-whole-application-not-runtime e.g. want a Button with a custom typeface Extend Button . Let's make an example public class CustomButton extends Button private..
How to parse XML using the SAX parser http://stackoverflow.com/questions/4827344/how-to-parse-xml-using-the-sax-parser posting a short hander example. android.sax Implementation Let's start with the android.sax implementation. You have first have..
Android: Expand/collapse animation http://stackoverflow.com/questions/4946295/android-expand-collapse-animation Expand collapse animation Hi all Let's say I have a vertical linearLayout with v1 v2 By default v1..
Why does ContentResolver.requestSync not trigger a sync? http://stackoverflow.com/questions/5253858/why-does-contentresolver-requestsync-not-trigger-a-sync call it whatever you like something relevant to your app. Let's look at sync_myapp.xml xml version 1.0 encoding utf 8 sync adapter..
What is the main purpose of setTag() getTag() methods of View? http://stackoverflow.com/questions/5291726/what-is-the-main-purpose-of-settag-gettag-methods-of-view of View type android share improve this question Let's say you generate a bunch of views that are similar. You could..
How to use addr2line in Android http://stackoverflow.com/questions/5314036/how-to-use-addr2line-in-android android ndk native code share improve this question Let's say that logcat show you the following crash log this is from..
Store orientation to an array - and compare http://stackoverflow.com/questions/6368618/store-orientation-to-an-array-and-compare is similar to the newly measured and the first is not. Let's compute the cost matrices according to this paper subsection..
ViewPager as a circular queue / wrapping http://stackoverflow.com/questions/7546224/viewpager-as-a-circular-queue-wrapping to allow navigation between some fragments. Let's say I have three fragments A B and C . The ViewPager shows Fragment..
http://stackoverflow.com/questions/8267928/android-rest-client-sample result of the AsyncTask s back to the app. Enough of text. Let's see some code now. Lets take a hypothetical REST API URL http..
SimpleCursorTreeAdapter and CursorLoader for ExpandableListView http://stackoverflow.com/questions/10611927/simplecursortreeadapter-and-cursorloader-for-expandablelistview 22132 onLoadFinished for loader_id 1 1 is the loader_id of the group cursor Then if i select one group in particular let's just call it group A it outputs 05 20 23 22 31.140 D GroupsAdapter 13844 getChildrenCursor for groupId 67 05 20 23 22 31.140.. the next query null The group does not expand and the NullPointerException is caught. Then if i select another group let's just call it group B it outputs 05 20 23 25 38.089 D GroupsAdapter 13844 getChildrenCursor for groupId 3 05 20 23 25 38.089..
AutoCompleteTextView backed by CursorLoader http://stackoverflow.com/questions/12854336/autocompletetextview-backed-by-cursorloader issue. The problem is the TextWatcher's onTextChanged method. After making the selection to terminate the first token let's say the token was Joe Johnson then entering more characters into this MultiAutoCompleteTextView such as al the value of..
Google maps api v2 custom infowindow like in original android google maps http://stackoverflow.com/questions/14123243/google-maps-api-v2-custom-infowindow-like-in-original-android-google-maps edge mapWrapperLayout.init map getPixelsFromDp this 39 20 We want to reuse the info window for all the markers so let's create only one class member instance this.infoWindow ViewGroup getLayoutInflater .inflate R.layout.info_window null this.infoTitle..
How to pause / sleep thread or process in Android? http://stackoverflow.com/questions/1520887/how-to-pause-sleep-thread-or-process-in-android in fact and I show it by changing the background of this button thisbutton.setBackgroundResource R.drawable.icon after let's say 1 second I need to go back to the previous stade of the button by changing back its background thisbutton.setBackgroundResource..
How can I create an Android application in Android Studio that uses the Google Maps Api v2? http://stackoverflow.com/questions/16596715/how-can-i-create-an-android-application-in-android-studio-that-uses-the-google-m looks like this. Btw lib project is located at sdk_location extras google google_play_services libproject 3 Now let's open Android Studio. On welcome screen press Import Project and import our maps project from ~ Work stack maps . Now we.. fix it. I have my support library located at sdk location extras android support v13 android support v13.jar . So let's try to add it to our workspace. Go to View Open Module Settings and select Libraries tab. Select Java and select support..
How to maintain multi layers of ImageViews and keep their aspect ratio based on the largest one? http://stackoverflow.com/questions/16729169/how-to-maintain-multi-layers-of-imageviews-and-keep-their-aspect-ratio-based-on might even be draggable. the largest one which usually takes the whole screen would be the bottom in the Z coordinate let's call it the backgroundImageView while all of the rest appear on top of it and on top of others . like so backgroundImageView..
overlay two images in android to set an imageview http://stackoverflow.com/questions/2739971/overlay-two-images-in-android-to-set-an-imageview the image or you can configure a LayerDrawable dynamically in code. Solution #1 via XML Create a new Drawable XML file let's call it layer.xml layer list xmlns android http schemas.android.com apk res android item android drawable @drawable t item..
Launch custom android application from android browser http://stackoverflow.com/questions/2958701/launch-custom-android-application-from-android-browser getIntent .getData which returns a Uri object. You can then use Uri. methods to extract the data you need. For example let's say the user clicked on a link to http twitter.com status 1234 Uri data getIntent .getData String scheme data.getScheme..
How to Read MMS Data in Android? http://stackoverflow.com/questions/3012287/how-to-read-mms-data-in-android be built with different parts text audio images etc. so here will see how to retrieve each kind of data separately. So let's guess we have the MMS id in the mmsId variable. We can get detailed information about this MMS by using the content mms..
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 new feature DownloadManager which allows you to download files easily and delegate the hard work to the system. First let's see a utility method @param context used to check the device version and DownloadManager information @return true if the..
Android apps, communicating with a device plugged in the USB port http://stackoverflow.com/questions/3803871/android-apps-communicating-with-a-device-plugged-in-the-usb-port IPs manually all the time . 3 If I make a device that's plugged to the little USB port at the bottom of the phone and let's say this is a magical device that can do anything I don't quite care about those details as long as it's doable . Can I..
How can I make a horizontal ListView in Android? [duplicate] http://stackoverflow.com/questions/3877040/how-can-i-make-a-horizontal-listview-in-android roll my own ListView when all I want is to take the thing and turn it on its side. rant Okay now that I'm done fuming let's talk about the problem itself. What I need is basically something exactly like the Gallery but without the center locking..
Android: Want to set custom fonts for whole application not runtime http://stackoverflow.com/questions/4395309/android-want-to-set-custom-fonts-for-whole-application-not-runtime declare styleable name CustomButton attr name typeface declare styleable resources Okay so with that out of the way let's get back to the parseAttributes method from earlier private void parseAttributes Context context AttributeSet attrs TypedArray.. You can add more attributes for about anything you could add another one for typefaceStyle bold italic etc. but now let's see how to use it xml version 1.0 encoding utf 8 LinearLayout xmlns android http schemas.android.com apk res android xmlns..
Difference between onStart() and onResume() http://stackoverflow.com/questions/4553605/difference-between-onstart-and-onresume methods just excluding onStart What is its purpose OK as my first answer was pretty long I won't extend it further so let's try this... public DriveToWorkActivity extends Activity implements onReachedGroceryStoreListener public GroceryStoreActivity..
3D cube transition in Android [closed] http://stackoverflow.com/questions/5339907/3d-cube-transition-in-android and I'll mark it as correct. android share improve this question I suppose you want a transaction like this Ok let's say you have a viewswitcher with 2 children. You need to access each child separately when they draw. You can do that by.. can play with the matrix.. so by doing matrix.postTranslate distance 0 you already get a funny looking animation. Then let's rotate the image based on it's position. matrix.postRotate distance 40f matrix.preTranslate child.getWidth 2f child.getHeight..
http://stackoverflow.com/questions/5794506/android-clear-the-back-stack Clear the back stack In Android I have some activities let's say A B C. In A I use this code to open B Intent intent new Intent this B.class startActivity intent In B I use this code..
Google maps api v2 custom infowindow like in original android google maps http://stackoverflow.com/questions/14123243/google-maps-api-v2-custom-infowindow-like-in-original-android-google-maps references to the MapWrapperLayout mapWrapperLayout.setMarkerWithInfoWindow marker infoWindow return infoWindow Let's add a couple of markers map.addMarker new MarkerOptions .title Prague .snippet Czech Republic .position new LatLng 50.08..
How can I capture a video recording on Android? http://stackoverflow.com/questions/1817742/how-can-i-capture-a-video-recording-on-android IOException e e.printStackTrace finish public void onClick View v if recording recorder.stop recording false Let's initRecorder so we can record again initRecorder prepareRecorder else recording true recorder.start public void surfaceCreated..
How can I check the current status of the GPS receiver? http://stackoverflow.com/questions/2021176/how-can-i-check-the-current-status-of-the-gps-receiver you can trust me when I say that we tried every possible solution to this problem all with the same negative result. Let's start by reiterating what doesn't work onStatusChanged doesn't get called on Eclair and Froyo. It does get called on 1.6.. are used in it. So the only working solution we have and the one we actually use in our application is the following. Let's say we have this simple class that implements the GpsStatus.Listener private class MyGPSListener implements GpsStatus.Listener..
How to add a button to PreferenceScreen http://stackoverflow.com/questions/2697233/how-to-add-a-button-to-preferencescreen you want to add to the standard preferences. Include a ListView in your layout and give it the ID @android id list . Let's say we call the layout file res layout main.xml . It could look something like this xml version 1.0 encoding utf 8 LinearLayout..
How can I use the paid version of my app as a “key” to the free version? http://stackoverflow.com/questions/3062946/how-can-i-use-the-paid-version-of-my-app-as-a-key-to-the-free-version can I use the paid version of my app as a &ldquo key&rdquo to the free version Let's say for example that I have some Android app that does X. The free version has ads or basic features. I want to have a paid..
set the absolute position of a view in Android http://stackoverflow.com/questions/3294590/set-the-absolute-position-of-a-view-in-android help this is driving me crazy. android view css position share improve this question You can use RelativeLayout. Let's say you wanted a 30x40 ImageView at position 50 60 inside your layout. Somewhere in your activity Some existing RelativeLayout..
Multiple Table SQLite DB Adapter(s) in Android? http://stackoverflow.com/questions/4063510/multiple-table-sqlite-db-adapters-in-android ROW_ID rowId null 0 NON NLS 1 When the first adapter in this case usersinfo is accessed everything works as expected. Let's say I have another adapter for friend info that follows the same structure as above when it is accessed by a different activity..
How to programatically create and read WEP/EAP WiFi configurations in Android? http://stackoverflow.com/questions/4374862/how-to-programatically-create-and-read-wep-eap-wifi-configurations-in-android Importantly Reflection can help you access private data members inside a class Well this is what we need don't we Let's check the code example now which shows how to read a EAP WiFi configuration using Reflection Api. As a bonus the snippet..
http://stackoverflow.com/questions/4381033/multi-gradient-shapes 1 . You can then as stated just use this as a standard Drawable. Edit Here's how you could use this in your scenario. Let's say you have a Button defined in XML like so Button android id @ id thebutton android layout_width wrap_content android..
Android: Want to set custom fonts for whole application not runtime http://stackoverflow.com/questions/4395309/android-want-to-set-custom-fonts-for-whole-application-not-runtime class that overrides whatever View you want to customize. e.g. want a Button with a custom typeface Extend Button . Let's make an example public class CustomButton extends Button private final static int ROBOTO 0 private final static int ROBOTO_CONDENSED..
How to parse XML using the SAX parser http://stackoverflow.com/questions/4827344/how-to-parse-xml-using-the-sax-parser I'm going to explain the pro's and con's of both after posting a short hander example. android.sax Implementation Let's start with the android.sax implementation. You have first have to define the XML structure using the RootElement and Element..
Android: Expand/collapse animation http://stackoverflow.com/questions/4946295/android-expand-collapse-animation Expand collapse animation Hi all Let's say I have a vertical linearLayout with v1 v2 By default v1 has visibily GONE. I would like to show v1 with an expand animation..
Why does ContentResolver.requestSync not trigger a sync? http://stackoverflow.com/questions/5253858/why-does-contentresolver-requestsync-not-trigger-a-sync and an account. It externally references another xml file call it whatever you like something relevant to your app. Let's look at sync_myapp.xml xml version 1.0 encoding utf 8 sync adapter xmlns android http schemas.android.com apk res android..
What is the main purpose of setTag() getTag() methods of View? http://stackoverflow.com/questions/5291726/what-is-the-main-purpose-of-settag-gettag-methods-of-view that I can associate any number of objects with a single object of View type android share improve this question Let's say you generate a bunch of views that are similar. You could set an OnClickListener for each view individually button1.setOnClickListener..
How to use addr2line in Android http://stackoverflow.com/questions/5314036/how-to-use-addr2line-in-android provided with android ndk android debugging shared libraries android ndk native code share improve this question Let's say that logcat show you the following crash log this is from one of my projects I DEBUG 31 I DEBUG 31 Build fingerprint..
Store orientation to an array - and compare http://stackoverflow.com/questions/6368618/store-orientation-to-an-array-and-compare most similar to the newly measured Obviously the second array is similar to the newly measured and the first is not. Let's compute the cost matrices according to this paper subsection 2.1 D i j Dist i j MIN D i 1 j D i j 1 D i 1 j 1 Here D i j..
ViewPager as a circular queue / wrapping http://stackoverflow.com/questions/7546224/viewpager-as-a-circular-queue-wrapping queue wrapping I am using a ViewPager with the FragmentStatePagerAdapter to allow navigation between some fragments. Let's say I have three fragments A B and C . The ViewPager shows Fragment A initially and allows you to navigate to Fragment B..
http://stackoverflow.com/questions/8267928/android-rest-client-sample I chose to use a Callback mechanism to communicate the result of the AsyncTask s back to the app. Enough of text. Let's see some code now. Lets take a hypothetical REST API URL http myhypotheticalapi.com user profile The top layer might look..
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