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2014/10/16 ¤W¤È 08:14:47
android Programming Glossary: i.eHow ListView's recycling mechanism works http://stackoverflow.com/questions/11945563/how-listviews-recycling-mechanism-works because your new item 8 will be drawn using convertview i.e basically it take the item1 view from the recycler and inflater..
Application Skeleton to support multiple screen http://stackoverflow.com/questions/12242111/application-skeleton-to-support-multiple-screen will be created for 480X800 only and then for rest ones i.e. Ldpi Mdpi Xhdpi . There are images which are common for all.. create folder according to Device's Android API version i.e. drawable hdpi v11` so the device which is having API11 and.. pixels normalised to 1 physical pixel on a 160 ppi screen i.e. medium density. Scaled at runtime. Use for screen element dimensions..
SharedPreferences.onSharedPreferenceChangeListener not being called consistently http://stackoverflow.com/questions/2542938/sharedpreferences-onsharedpreferencechangelistener-not-being-called-consistently will be OK provided your class instance is not destroyed. i.e. instead of prefs.registerOnSharedPreferenceChangeListener new..
Detect application heap size in Android http://stackoverflow.com/questions/2630158/detect-application-heap-size-in-android number of megabytes as are indicated in getMemoryClass i.e. approximately a million times the latter value . The only situation.. similar to setting the heap manually via a rooted OS i.e. it would raise the value of maxMemory while leaving getMemoryClass.. available by a user who has upped the heap via a rooted OS i.e. if your app uses the additional memory it probably will not..
http://stackoverflow.com/questions/2634991/android-1-6-android-view-windowmanagerbadtokenexception-unable-to-add-window android windowmanager share improve this question i.e. this line Context appContext this.getApplicationContext must..
How to draw a path on a map using kml file? http://stackoverflow.com/questions/3109158/how-to-draw-a-path-on-a-map-using-kml-file see. To display the route you should parse the kml data i.e. via SAX parser then display the route markers on the map. See..
Android: out of memory exception in Gallery http://stackoverflow.com/questions/3238388/android-out-of-memory-exception-in-gallery The hprof should only show you the number of objects i.e. BitmapDrawables or Bitmaps that are left. I use this code in..
Change title bar text in Android http://stackoverflow.com/questions/3438276/change-title-bar-text-in-android choosing and be different for each page activity in my app i.e. my home page could say page1 in the title bar while another.. days Normal way you can Change the Title of each screen i.e. Activity by setting their Android label activity android name.. bar But if you want to Customize title bar in your way i.e. Want to put Image icon and custom text then following code..
Adding a library/JAR to an Eclipse Android project http://stackoverflow.com/questions/3642928/adding-a-library-jar-to-an-eclipse-android-project in the filesystem to find the library's parent directory i.e. where you downloaded it to . Click OK then click the directory..
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 WifiPreference saveConfiguration returned es boolean b wifi.enableNetwork res true Log.d WifiPreference enableNetwork returned.. Now we need to search appropriate configuration i.e. with name SSID_Name for int i 0 i configList.size i if configList.get..
Trying to attach a file from SD Card to email http://stackoverflow.com/questions/587917/trying-to-attach-a-file-from-sd-card-to-email you need the extra as this points to the root directory i.e. file sdcard DumbDumpers DumbDumper.jpg combined as file sdcard..
http://stackoverflow.com/questions/5907369/file-upload-in-webview browser like Firefox and built in browser of emulator AVD i.e. when I click Browse... button rendered by element browser opens..
When to call activity context OR application context? http://stackoverflow.com/questions/7298731/when-to-call-activity-context-or-application-context from an Activity if you wish to pass the ServiceConnection i.e. the handle to the binding between Activity instances via onRetainNonConfigurationInstance..
Replace Fragment inside a ViewPager http://stackoverflow.com/questions/7723964/replace-fragment-inside-a-viewpager about which ID he should use it is the ID of the container i.e. the ID of the view pager itself. However as you probably noticed..
How do you create a transparent demo screen for an Android app? http://stackoverflow.com/questions/12013334/how-do-you-create-a-transparent-demo-screen-for-an-android-app that it will not scale properly on different devices. I.e. the arrows may not necessarily point to the correct UI component..
Up navigation broken on JellyBean? http://stackoverflow.com/questions/14602283/up-navigation-broken-on-jellybean me to wonder if this is an unanticipated use of the API. I.e. I wonder if Android expects that you to traverse the full navigation..
Zxing Camera in Portrait mode on Android http://stackoverflow.com/questions/16252791/zxing-camera-in-portrait-mode-on-android
Launching activity from widget http://stackoverflow.com/questions/1937236/launching-activity-from-widget minSdkVersion 3 Is there a way to test where the fault is I.e. is the fault that the button isn't linked properly to the PendingIntent..
Android Market Application Updates [closed] http://stackoverflow.com/questions/2175945/android-market-application-updates a way to ensure that the users download the new update I.e. Does the app tells the user there is an update or does it stop..
How to get the connection strength of Wifi access points? http://stackoverflow.com/questions/3437694/how-to-get-the-connection-strength-of-wifi-access-points are several APs available in the system's wifi setting. I.e. configs is an incomplete list. I don't know how to get the..
Is Android 2.2 HTTP progressive streaming = HTTP Live Streaming? http://stackoverflow.com/questions/3595491/is-android-2-2-http-progressive-streaming-http-live-streaming 2.2 supports HTTP progressive streaming. What's that means I.e. is this an HTTP Live Streaming protocol realization And how..
How to crop the parsed image in android? http://stackoverflow.com/questions/3725501/how-to-crop-the-parsed-image-in-android down from the website and want to resize rather than crop I.e. create thumbnails. If so you can use the following load the..
http://stackoverflow.com/questions/4317778/hide-footer-view-in-listview while that does hide the view it leaves space for it. I.e. I end up with a big blank space where the Loading message used..
Strange out of memory issue while loading an image to a Bitmap object http://stackoverflow.com/questions/477572/strange-out-of-memory-issue-while-loading-an-image-to-a-bitmap-object simple but I am not sure how I can put a resized image I.e. Smaller bit size not pixel as the src for the image button..
Is there any way to distinguish between an Android Activity onResume from the home screen? http://stackoverflow.com/questions/4789300/is-there-any-way-to-distinguish-between-an-android-activity-onresume-from-the-ho it goes through the same lifecycle as in Scenario 1. I.e. User hits the home button. Activity goes through onPause and..
zooming and dragging images using matrix in android http://stackoverflow.com/questions/5881778/zooming-and-dragging-images-using-matrix-in-android to transformation already defined in matrix . I.e. matrix contains some zoom transformation and then after applying..
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables should have emphasized more in the original answer. I.e. this is not meant to be a solution for saving user or other..
How do I build the Android SDK with hidden and internal APIs available? http://stackoverflow.com/questions/7888191/how-do-i-build-the-android-sdk-with-hidden-and-internal-apis-available that are not prefixed with the @ hide javadoc annotation. I.e. everything that is not annotated is included in the SDK. android.jar..
Mixing Android Views and GLSurfaceView http://stackoverflow.com/questions/8128896/mixing-android-views-and-glsurfaceview a FrameLayout with the GLSurfaceView as the first element. I.e. at the bottom of the stack with other views viewgroups layered..
How do I verify Android in-app-billing transactions on MY server? http://stackoverflow.com/questions/8379819/how-do-i-verify-android-in-app-billing-transactions-on-my-server presumably originating from Google servers is not fake I.e. a hacker didn't generate the data. Google Server Android client..
How to correctly start activity from PostExecute in Android? http://stackoverflow.com/questions/9118015/how-to-correctly-start-activity-from-postexecute-in-android context rather than a context from the local activity. I.e. use context.getApplicationContext and save that in a local..
How ListView's recycling mechanism works http://stackoverflow.com/questions/11945563/how-listviews-recycling-mechanism-works in your Logcat you will notice that convetView is not null its because your new item 8 will be drawn using convertview i.e basically it take the item1 view from the recycler and inflater in place of item 8 and you can observe that as in mine code..
Application Skeleton to support multiple screen http://stackoverflow.com/questions/12242111/application-skeleton-to-support-multiple-screen Hdpi 100 XHdpi 133.33 which means that first icon and design will be created for 480X800 only and then for rest ones i.e. Ldpi Mdpi Xhdpi . There are images which are common for all layout and must uniform in color and shape no complex shape.. you Device configuaration from GsmArena Sameway you can also create folder according to Device's Android API version i.e. drawable hdpi v11` so the device which is having API11 and it is Hdpi then it will use this resources. Additional Tips.. relative layouts dp sp and mm dp units device independent pixels normalised to 1 physical pixel on a 160 ppi screen i.e. medium density. Scaled at runtime. Use for screen element dimensions sp units scaled pixels specified as floating point..
SharedPreferences.onSharedPreferenceChangeListener not being called consistently http://stackoverflow.com/questions/2542938/sharedpreferences-onsharedpreferencechangelistener-not-being-called-consistently a reference to the listener in a field of your class and you will be OK provided your class instance is not destroyed. i.e. instead of prefs.registerOnSharedPreferenceChangeListener new SharedPreferences.OnSharedPreferenceChangeListener public..
Detect application heap size in Android http://stackoverflow.com/questions/2630158/detect-application-heap-size-in-android of Android maxMemory will typically return about the same number of megabytes as are indicated in getMemoryClass i.e. approximately a million times the latter value . The only situation of which I am aware for which the two methods can diverge.. numbers above would be that this option would have an effect similar to setting the heap manually via a rooted OS i.e. it would raise the value of maxMemory while leaving getMemoryClass alone. There is another method getLargeMemoryClass that.. the same benefits and perils as would using the space made available by a user who has upped the heap via a rooted OS i.e. if your app uses the additional memory it probably will not play as nicely with whatever other apps the user is running..
http://stackoverflow.com/questions/2634991/android-1-6-android-view-windowmanagerbadtokenexception-unable-to-add-window in the debugger. android android dialog runtimeexception android windowmanager share improve this question i.e. this line Context appContext this.getApplicationContext must go and instead you use a pointer to the activity you're in..
How to draw a path on a map using kml file? http://stackoverflow.com/questions/3109158/how-to-draw-a-path-on-a-map-using-kml-file kml data to your mapView anywhere in your code as far as I can see. To display the route you should parse the kml data i.e. via SAX parser then display the route markers on the map. See the code below for an example but it's not complete though..
Android: out of memory exception in Gallery http://stackoverflow.com/questions/3238388/android-out-of-memory-exception-in-gallery consume native heap which usually doesn't show in a hprof. The hprof should only show you the number of objects i.e. BitmapDrawables or Bitmaps that are left. I use this code in my app to output the current used memory used by the app and..
Change title bar text in Android http://stackoverflow.com/questions/3438276/change-title-bar-text-in-android of the program and im wanting it to display something of my choosing and be different for each page activity in my app i.e. my home page could say page1 in the title bar while another activity that the app switches to could have page2 in that.. this Style Generator tool can help you out. Old Earlier days Normal way you can Change the Title of each screen i.e. Activity by setting their Android label activity android name .Hello_World android label This is the Hello World Application.. label This is the Hello World Application activity Custom Title bar But if you want to Customize title bar in your way i.e. Want to put Image icon and custom text then following code is running for me main.xml xml version 1.0 encoding utf 8 LinearLayout..
Adding a library/JAR to an Eclipse Android project http://stackoverflow.com/questions/3642928/adding-a-library-jar-to-an-eclipse-android-project libs and choose Import General File System then Next Browse in the filesystem to find the library's parent directory i.e. where you downloaded it to . Click OK then click the directory name not the checkbox in the left pane then check the relevant..
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 Network returned res boolean es wifi.saveConfiguration Log.d WifiPreference saveConfiguration returned es boolean b wifi.enableNetwork res true Log.d WifiPreference enableNetwork returned b Following the permissions needed in AndroidManifest.xml.. List WifiConfiguration configList wifi.getConfiguredNetworks Now we need to search appropriate configuration i.e. with name SSID_Name for int i 0 i configList.size i if configList.get i .SSID.contentEquals SSID_NAME We found the appropriate..
Trying to attach a file from SD Card to email http://stackoverflow.com/questions/587917/trying-to-attach-a-file-from-sd-card-to-email for me should have been file sdcard DumbDumpers DumbDumper.jpg you need the extra as this points to the root directory i.e. file sdcard DumbDumpers DumbDumper.jpg combined as file sdcard DumbDumpers DumbDumper.jpg In the above snippet you need..
http://stackoverflow.com/questions/5907369/file-upload-in-webview following code to upload a file. It works fine in a desktop browser like Firefox and built in browser of emulator AVD i.e. when I click Browse... button rendered by element browser opens a Dialog box where I can choose a file to upload. However..
When to call activity context OR application context? http://stackoverflow.com/questions/7298731/when-to-call-activity-context-or-application-context . Use getApplicationContext when you bind to a Service from an Activity if you wish to pass the ServiceConnection i.e. the handle to the binding between Activity instances via onRetainNonConfigurationInstance . Android internally tracks bindings..
Replace Fragment inside a ViewPager http://stackoverflow.com/questions/7723964/replace-fragment-inside-a-viewpager I'd like to start by answering the author's question about which ID he should use it is the ID of the container i.e. the ID of the view pager itself. However as you probably noticed yourself using that ID in your code causes nothing to..
How do you create a transparent demo screen for an Android app? http://stackoverflow.com/questions/12013334/how-do-you-create-a-transparent-demo-screen-for-an-android-app By using a PNG that has the text and arrows it's likely that it will not scale properly on different devices. I.e. the arrows may not necessarily point to the correct UI component in the background. Is there a way to tackle this problem..
Up navigation broken on JellyBean? http://stackoverflow.com/questions/14602283/up-navigation-broken-on-jellybean principle of least astonishment in your scenario. That leads me to wonder if this is an unanticipated use of the API. I.e. I wonder if Android expects that you to traverse the full navigation path to an activity not jump directly to it. Just..
Zxing Camera in Portrait mode on Android http://stackoverflow.com/questions/16252791/zxing-camera-in-portrait-mode-on-android
Launching activity from widget http://stackoverflow.com/questions/1937236/launching-activity-from-widget volume_changer_info receiver application uses sdk android minSdkVersion 3 Is there a way to test where the fault is I.e. is the fault that the button isn't linked properly to the PendingIntent or that the PendingIntent or Intent isn't finding..
Android Market Application Updates [closed] http://stackoverflow.com/questions/2175945/android-market-application-updates If I have an app on the market and release an update is there a way to ensure that the users download the new update I.e. Does the app tells the user there is an update or does it stop working until they download an update Or should I be writing..
How to get the connection strength of Wifi access points? http://stackoverflow.com/questions/3437694/how-to-get-the-connection-strength-of-wifi-access-points only contains one connection. However I can see that there are several APs available in the system's wifi setting. I.e. configs is an incomplete list. I don't know how to get the signal strength in WifiConfiguration . btw I am using HTC Hero..
Is Android 2.2 HTTP progressive streaming = HTTP Live Streaming? http://stackoverflow.com/questions/3595491/is-android-2-2-http-progressive-streaming-http-live-streaming HTTP Live Streaming The Stagefrigh media framework Android 2.2 supports HTTP progressive streaming. What's that means I.e. is this an HTTP Live Streaming protocol realization And how to use HTTP Live Streaming on Android I mean what's the client..
How to crop the parsed image in android? http://stackoverflow.com/questions/3725501/how-to-crop-the-parsed-image-in-android this question I assume you've already got the images down from the website and want to resize rather than crop I.e. create thumbnails. If so you can use the following load the origial BitMap 500 x 500 px Bitmap bitmapOrg BitmapFactory.decodeResource..
http://stackoverflow.com/questions/4317778/hide-footer-view-in-listview I tried to do loadingView.setVisibility View.GONE Unfortunately while that does hide the view it leaves space for it. I.e. I end up with a big blank space where the Loading message used to be. How can I go about properly hiding this view I can't..
Strange out of memory issue while loading an image to a Bitmap object http://stackoverflow.com/questions/477572/strange-out-of-memory-issue-while-loading-an-image-to-a-bitmap-object done with the cursor and ListAdapter . This makes it pretty simple but I am not sure how I can put a resized image I.e. Smaller bit size not pixel as the src for the image button on the fly. So I just resized the image that came off the phone..
Is there any way to distinguish between an Android Activity onResume from the home screen? http://stackoverflow.com/questions/4789300/is-there-any-way-to-distinguish-between-an-android-activity-onresume-from-the-ho foreground and then re invokes the Application from the launcher it goes through the same lifecycle as in Scenario 1. I.e. User hits the home button. Activity goes through onPause and onStop . User launches the application again causing Activity..
zooming and dragging images using matrix in android http://stackoverflow.com/questions/5881778/zooming-and-dragging-images-using-matrix-in-android like zoom and move. postTranslate adds move transformation to transformation already defined in matrix . I.e. matrix contains some zoom transformation and then after applying postTranslate it will determine zoom and then move transformation...
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables this is not a solution for persistent state something I perhaps should have emphasized more in the original answer. I.e. this is not meant to be a solution for saving user or other information that is meant to be persisted across application..
How do I build the Android SDK with hidden and internal APIs available? http://stackoverflow.com/questions/7888191/how-do-i-build-the-android-sdk-with-hidden-and-internal-apis-available API of the Android SDK is defined by classes methods fields that are not prefixed with the @ hide javadoc annotation. I.e. everything that is not annotated is included in the SDK. android.jar is built from the sources located in out target common..
Mixing Android Views and GLSurfaceView http://stackoverflow.com/questions/8128896/mixing-android-views-and-glsurfaceview opengl es share improve this question I've been using a FrameLayout with the GLSurfaceView as the first element. I.e. at the bottom of the stack with other views viewgroups layered over the top of it. I'd recommend just pausing the game..
How do I verify Android in-app-billing transactions on MY server? http://stackoverflow.com/questions/8379819/how-do-i-verify-android-in-app-billing-transactions-on-my-server I verify that transaction data coming from the Android client presumably originating from Google servers is not fake I.e. a hacker didn't generate the data. Google Server Android client My server Android client Perhaps this is more of a PHP..
How to correctly start activity from PostExecute in Android? http://stackoverflow.com/questions/9118015/how-to-correctly-start-activity-from-postexecute-in-android improve this question You should pass in the application context rather than a context from the local activity. I.e. use context.getApplicationContext and save that in a local variable in your AsyncTask subsclass. The code might looks something..
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