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• How do you store and retrieve data from a text file in Java/Android?

  - by Emanuil

  The question is in the title.

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• Android, how to detect if somebody has touched\moved my device.

  - by systempuntoout

  Is it possible to know if someone has touched my phone (lifting or moving it for example), using some Events? How would you code it?

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• In Android, does _id have to be present in any table created?

  - by Andy

  I am trying to create a table to only has a foreign key, not a primary key. I am getting this error: java.lang.IllegalArgumentException: column '_id' does not exist I read a tutorial that the primary key must be _id, with no explanation. And that is fine. But what if I do not want a primary key! What if I only want a foreign key. I am assuming this is where my problem lies. The schemas below are what I have. But the third one is where I assume this is coming from. database.execSQL("CREATE TABLE events (" + "_id INTEGER PRIMARY KEY, event_name TEXT" + ")"); database.execSQL("CREATE TABLE reminders(_id INTEGER PRIMARY KEY, event_name TEXT" + ")"); database.execSQL("CREATE TABLE events_info (_id INTEGER, event_name TEXT, all_day INTEGER, " + "start_date INTEGER, start_time INTEGER, end_date INTEGER, end_time INTEGER," + " location TEXT, reminder_id INTEGER, notes TEXT, repeat TEXT," + "FOREIGN KEY(_id) REFERENCES events(_id), FOREIGN KEY(reminder_id) REFERENCES reminders(_id))" );

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• Is there a view for inputing integers in Android?

  - by J. Pablo Fernández

  I'm looking for something like the individual parts of the date picker dialog. A view that allows you to input integers (and only integers) that you can limit (between 1 and 10 for example), where you can use the keyboard or the arrows in the view itself. Does it exists? It is for a dialog. A ready-made dialog to request an integer would also help.

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• Is it possible to retrieve an image from the data folder in an android app?

  - by Maxood

  I want to retrieve an image from my data/data/com.apps.myapp/images folder and display it in an ImageView. Any clue?

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• Android: How to pass hidden value on TextView onClick.

  - by user352263

  I want to pass hidden value when user clicks on Text. E.g For Twitter Application - When user clicks on user name @TechCrunch then I want to pass TechCrunch user's ID to the application. Please advise.

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• How to skip image tag in html data in android?

  - by user1448108

  My data in db is stored in html format along with image tags in it. So when I am getting the data from database I am removing the html tags and setting it to textview. My problem is even after removing the html tags, there is a small square box displaying in the emulator indicating that there is some image. How can I remove those square box in emulator which is an indication of image in that html data? Help me regarding this... Thanks in advance My Code: textView.setText(Html.fromHtml(htmlString));

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• Is there any way to see the diff on a file between two different Android releases?

  - by BenIOs

  It would be really nice if there is some easy way to see what have changed in a certain class (or other file) between two releases (1.6 & 2.1 for example). Does anyone know how to do this? A way to do it online would be great but downloading the code and checking offline would be ok as well.

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• Android app display different blocks of text using the same views.

  - by user465131

  I am sure there is a better way to do what I am doing in my apps. The current one I am trying to improve is a list of military cadences. The way I am doing it now is by loading html files in a web view. What I would like to be able to do is have one view set up and just be able to add the text portion of what I would be displaying with the html file. What would be the best method. I know this is probably a pretty simple thing to do with a sting or array but I am at the very beginner level and would need to be pointed in the right direction to do it.

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• Android:How can i change the color of the text of the ListAdapter?

  - by Maxood

  The default color of the text is white. Let's say if i want to change the color, then how can i do it? Any clue?

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• Is it possible in Android Market to delete an existing FREE app and reupload it again as a PAY app?

  - by watcherFR

  I have an app I am offering for free for now. At some point, I want to be able to change it to a pay app. The market doesn't allow a free app to become for-pay and doesn't allow for-pay apps to be priced at 0$. So is it possible to just delete the original app and then reupload it as a for-pay app ? It's okay in my case if users aren't notified of updates.

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• How can I have a floating image (right aligned) with text that wraps around the image in Android Lay

  - by groomsy

  It's kind of hard to explain, but an example of what I'm wanting to accomplish is like this: Here is some text | image | that is printed | | out in a view and --------- it is wrapped around an image that is floating and right aligned. I thought about generating the layout in html and using a web view, but I need to be able to perform an action when the user clicks on the image. Does anyone have any ideas? Thanks in advance, groomsy

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• How do you output messages to the Eclipse console in an Android project?

  - by Emanuil

  The question is in the title.

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• how to Android audio OUT get work like mic in or line in?

  - by Eugene

  so the idea is produce some analog data into phone via audio jack OUTPUT, so please, let me know the API function calls please!

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• how can i send file over bluetooth in android?

  - by Karna

  I have searched much but I didn't find any solution but I god somewhere this example: ContentValues values = new ContentValues(); values.put(BluetoothShare.URI, "content://" + uritoSend); values.put(BluetoothShare.DESTINATION, deviceAddress); values.put(BluetoothShare.DIRECTION, BluetoothShare.DIRECTION_OUTBOUND); Long ts = System.currentTimeMillis(); values.put(BluetoothShare.TIMESTAMP, ts); but this example give error unsupported content. please provide me the correct answer. Thanks in advance

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• [Android] How to launch an Activity without a UI?

  - by fjmustak

  Is it in any way possible to launch an activity from the main function without having a UI? i.e. is there a way to create a sort of "wrapper" around another activity, i.e. by launching the main activity, it takes you to another activity automatically. If that is not possible, is there a way to remove the main activity from the stack so that clicking the back button does not take you to a blank UI? Here's an example of what I'm trying to do: public class WrapperActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); final Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse("tel:555-1212")); startActivity(intent); } }

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• Why is my input textbox extending outside margins in BlackBerry and Android, but not iOS?

  - by Dallas

  I have an input field that is extending well beyond the rest of the page, but as the question alludes to, it appears fine in iOS. I am wondering if anyone has run into this issue. My search button, which in iOS is on the right of the search textbox, actually wraps to the next "line" on the other two platforms. I am not using a table, just inside a div, and the CSS isn't doing anything fancy. Any ideas?

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• Android-SQLite: How to Count specific value from Column?

  - by sanpatil

  I have two table (TABLE_EXAM,TABLE_RESULT). Here is value of my TABLE_RESULT. result_id exam_id question_id correct_answer 1 2 4 y 2 2 5 y 3 2 6 n 4 2 7 y I need to count how many correct_answer='y' where exam_id=2. I try following code but it return 0. public int calculateResult(int examId,String confirmAnswer) { int correctAnswer=0; try { SQLiteDatabase db=this.getWritableDatabase(); String selectQuery=("select count(correctAnswer) from result where exam_id ='" + examId + "' and correctAnswer ='" + 'y' +"'" ); // String selectQuery=("SELECT COUNT(*)FROM result WHERE exam_id ='" + examId + "' and correctAnswer ='" + confirmAnswer +"'" ); Cursor cursor = db.rawQuery(selectQuery, null); if(cursor.moveToLast()) { correctAnswer=cursor.getInt(3); } } catch(Exception e) { e.printStackTrace(); } return correctAnswer; } In variable confirm_answer i pass "y". Give me some hint or reference. Any help is appreciated. Thanks in Advance

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• ScrollBall press events while screen is off on an Android device.

  - by stolksdorf

  I'm writing a quick music player for myself on my Nexus One and really want to add the feature of being able to switch to the next song without removing it from it's case, ie. by pressing the scrollball through the sleeve. I've scoured many resources and... Haven't found a decently easy way to listen to key press events while the screen is off. Can't seem to even get scrollball press events to work. I've tried using a broadcastreciever listening for the Dpad_center intent, but it doesn't seem to function properly. I'm not looking for someone to write the code for me, but if you have successfully done either of these things, any insight on techniques or resources would be amazing. Thanks in advance!

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• How can i check whether an android device is connected to the web?

  - by Maxood

  How would i know whether my device is connected the web or not? How can i detect connectivity? Any sample code?

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• Can anyone explain what features of the C runtime in Android (via NDK) are not supported?

  - by Eno

  More specifically, does NDK have a complete STL implementation. We're looking at this for devices running 1.6 and upwards.

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• Android - can I passing parameter when launch other application from my application?

  - by army

  How to passing parameter when launch other application from my application?

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• Is it possible to retrieve image from a the data folder in android app?

  - by Maxood

  I want to retrieve an image from my data/data/com.apps.myapp/images folder and display it in an ImageView.Any clue?

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• How to find the exact center of a String? (Android)

  - by jax

  How to find the exact pixel center of a String? I need this for drawing onto a canvas.

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• How do I install a platform into my android device using Windows not Eclipse?

  - by Saip

  I know its easy to do this with Eclipse but i dont have that. can someone please tell me how to do this step by step on Windows??

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