I an new to android development. I am trying to make a simple expression solver . (ie evaluate mathematical expressions such as "23+3*(24+5/7)". For that i need an editText field which takes numbers (0 to 9) symbols + , - , * , ^ , / , % , . and parenthesis symbols such as ')' and '(' . I think for this i have to create new InputType and a custom keyboard. how to go about (ie how to create new InputType and custom keyboard ).
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How do we set the input type for an EditText programatically? I'm trying:
mEdit.setInputType(InputType.TYPE_TEXT_VARIATION_PASSWORD);
it doesn't seem to have any effect.
I'm having problems removing constants from TextViews' InputType. Scenario: EditText field with password and a CheckBox which toggles Show/Dont Show Password.
View 3 Replies View RelatedI'd like to allow possible inputs of 0-9, "," or "-" for EditText and couldn't find an answer.
I know using the "|" as an separator is possible: android:inputType="number|text"
But how can I archive something like this (too bad it doesn't work): android:inputType="number|,|-"
Addition to the comment below:
CODE:................
I have a ListView in which each item has a complex layout that contains, at some point, a TextView with android:inputType="text" and android:ellipsize="marquee". My problem is that inputType="text" does something that renders the whole listview item un-clickable.
I've tried:
CODE:........................
Nothing worked.
The reason why I use android:inputType="text" on a TextView is so that it becomes single-line and android:ellipsize="marquee" actually works. I've done my homework: android:singleLine is deprecated
android:lines="1", as suggested here, doesn't work, the text still wraps, you just don't get to see the second line, so the marquee effect does not appear.
or is it? My Ctrl+Space in Eclipse says this about android:singleLine (emphasis mine):
Constrains the text to a single horizontally scrolling line instead of letting it wrap onto multiple lines, and advances focus instead of inserting a newline when you press the enter key. * Deprecated: This attribute is deprecated and is replaced by the textMultiLine flag in the inputType attribute. Use caution when altering existing layouts, as the default value of singeLine is false (multi-line mode), but if you specify any value for inputType, the default is single-line mode. (If both singleLine and inputType attributes are found, the inputType flags will override the value of singleLine.). [boolean]
However, the docs do not say anything about any deprecation.
Is there a way that I can use my own database when creating an app?
What I mean by that is that I want the app to start with a database already loaded so one doesn't have to be created when the app is started?
I can't create a new APN in my phone. I own a samsung galaxay star GT-S5282.
I tried using giffgaff, but when i save the APN that giffgaff made, it isn't there. And I tried doing it manually too. It's not there when i press save.
I tried using APN backup and restore, and when i open the app, it says "Unfortunately APNs cannot be restored or deleted on this device because android 4.0+ does not allow 3rd party apps to write APN settings."
I already checked the unknown sources in settings>security>unknown sources.
I don't know what to do to create new APN.
I'm seemingly having problems creating the apk using an ant build for 1.5. It's building so I'm guessing the sdk pointer in local.properties is set correctly, but it seems to not be finding sun.security.x509.* (?).
I can see that jarutils.jar is in
CODE:...............
Here's the traceback spew...
release: [apkbuilder] Creating .Phresheez-unsigned.apk for release...
CODE:................
I'm developing an Android application and I'm very new on Java and Android. I want to create some constants to use in some activities. Where can I define these constants?
View 4 Replies View RelatedI have a "thirdparty.jar" which I have to add into my Eclipse project and make one combined JAR for my entire package. I have added the thirdparty.jar into my pproject using "Java Build Path" Libraries settings in eclipse. But when I try to make jar for my entire project, the jar creation for my project is success but the "thirdparty.jar" is not getting included in my project.jar.
View 2 Replies View RelatedI'm not sure if this needs to be in the Support/TroubleShooting section or in the All Things Root Section. Mods, feel free to move. Anyone know where I can get some detailed instructions for creating a SD Ext 4 partition? Is this something easy to do in Windows? I'm running Ubuntu mainly so if there are ways to do it in there that would be good too.
View 2 Replies View RelatedI am thinking about creating a 2D game for android. Kind of like the flash game "Age Of War" (just google it). Can I do it with just Java or do I also need openGL?
View 4 Replies View RelatedI'm sure this is simple, but I've got myself confused over it.I have an image resource, such as R.drawable.myimage, and I want to convert this into a URI.I tried:
Uri selectedImage = Uri.parse("android.resource://com.my.package/" + resourceId);
but this just returns a NullPointer. The resourceId needs to be dynamic (so I can pass any image to it), not just a hardcoded "myImage".Any help please?
Is there any way to create window on Android using C++.
View 2 Replies View RelatedLet's say I randomly generate a number 0 to 100. Where 0 is really cold and 100 is red hot. Wen the number hits, it would show an image bar (kind of like a % finished bar) that shows in the image what # you hit.
So it would kind of be like a progress bar from 0 to 100, and whatever # they hit it shows in the image of the bar in an imageview?
I'm starting a calendar app and I'm trying to figure out what the best way to create the layout is. I don't want to use the built in CalendarView as it's only in API >11 which limits the potential users too much.
I've toyed around with a GridView with and Adapter behind it. Truth be told I'm still figuring out how that one works, but it seems the most promising.I tried a nested LinearLayout of TextViews but that requires accessing each TextView be it's ID.
i have a church database which i want to create an App which contains all details in the database....with a search button to search the database...
View 3 Replies View RelatedI have "Class Checkin's" Which have a max amount of people who can be checked in. So on my application I have the Class Time and under each of these class times, I want to have a horizontal progress bar that adds one to the bar each time someone checks in (On my web application I am using jquery .progressbar).
Currently I have the following:
HTML Code:
private void createProgressBar(ArrayList<Integer> array, Integer maxProgress){
View BoxProgressLayout = findViewById(R.id.BoxProgress);
Iterator<Integer> iterator = array.iterator();
while(iterator.hasNext()) {
ProgressDialog progressBar = new ProgressDialog(BoxProgressLayout.getContext());
progressBar.setCancelable(false);
progressBar.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progressBar.setProgress(0);
progressBar.setMax(maxProgress);
progressBar.show();
}
}
In order to add the progress bar to my Progress layout. But the progress bar doesn't appear on the page. Is this the best way to go about this? or am I going to have to draw my own progress bar that increments and fills by a percentage each time someone checks in.
i am creating an app similar to navigator, only that it is not restricted to US only,
now, it works as follows
1) user speaks the destination location, which is converted to text, sent to google maps for processing
2) google maps calculates route between current location and destination location, sends back the route, in text form
3) this text is converted back to speech using text to speech converter, issued to user
till now, i have set up the sdk,adk,eclipse and adt, enabled google maps after getting the key from google using keytool, have the working code for text to speech converter, and i can get my current location(of emulator) using coordinated sent by eclipse.
Thing is, how do i integrate all thees independent modules?
I am working on mapactivity for googlemaps api. I created options menu which includes 5 different menu items. What I need is whenever I click on each of the menu item it should open another menu may be something similar to contextual action mode which should contain some views like button and a text editfield. I need to enter address in edit field and button to click on GO which should thereby locate the address on the map.
What I did is, in OnOptionsItemSelected() I am passing setcontentview with new ref.id(xyz.xml) which contains edittext and button. But I am not able to pass button.setonclicklistener() after that. The application gets crashed running this peace of code.
I think this is a wrong way of doing but I didn't find any other way to get the options with edit and button. I am working on java.
Where would one begin to create an Android rom? I have looked at a couple of tutorials but they all require me to download some application that is not open source and only has binaries for Windows.
View 2 Replies View RelatedI put together a ROM with the kitchen and did the major theming through the actual ROM and plan to backup fully when done and then run the backup through the kitchen.
Nexus One using XDA
I'm creating a menu in XML using the eclipse software.Unfortunately, I'm no expert in XML but I have attempted to create a basic menu.
The issue I'm having is the alignment of the menu buttons. The buttons on the left column are smaller in width compared to the buttons in the right column. I know this may not seem much of an issue now, but the problem is made worse if I edit the text value of the buttons.
I want to achieve even distribution for both columns of buttons but I have been scratching my head trying to figure this one out!
find below an image describing my program and the code:
Code:
<TableLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android">
<TableRow android:background="#FFFFFF">
[code]....
If I go to the Gallery I get Camera Shots, All Photos, and All Videos. How can I create a new gallery folder to be visible here so that I can classify my pictures more easily. I tried creating a new folder on the SD card within DCIM100Media and using an app that rescanned the SD card but no luck.
View 11 Replies View RelatedI have figured out how to create a folder on my homescreen but for the life of me can't figure how to change the name of the folder or how to add shortcuts to different programs into a folder.
View 8 Replies View RelatedI just got this phone yesterday, so this maybe a really stupid question, but when I plug the Hero into the computer via USB, there is an DCIM file for photos, but when I create a new folder (with my computer) in this folder, it does not appear in the phone's album application.
View 3 Replies View RelatedI want to create a directory by using program in android sdk. Is it possible to listen the folder action like open folder and close folder etc.
View 1 Replies View RelatedI am creating one notification based on some event. This notification will only create sound. I just want to generate the sound using this notification, but no UI. Following is my code for this:
// make notification sound whenever the device is connected or disconnected
Notification notification = new Notification();
notification.defaults |= Notification.DEFAULT_SOUND;
notification.flags = Notification.FLAG_AUTO_CANCEL;
NotificationManager manager = (NotificationManager)
mContext.getSystemService(Context.NOTIFICATION_SERVICE);
// notify to all, manager.notify(0, notification);
I am facing few problems and have some doubts. I tried to search for answers in this post but could not find, so I am posting here for your people's suggestions:
1. Here I am using 0 as id for the notification. Is it good in practice. Since, I don't want to that this notification conflicts with other.
2. I have one doubt, about notification ids, e.g. if i keep my notifications id as 1 and some other application also have set that as 1. In that case, will my notification be updated. or Android treats, application's notifications differently.
3. Is it necessary to add FLAG_AUTO_CANCEL flag in my notification. Because, I think this is used when notification will appear in the status bar. But in my case, I have no UI. It means nothing will appear in status bar.
4. Currently there is one problem. When my notification makes sound, sometimes it seems that it is suppressed or distorted by any other sound or event. I am not sure what is happening there.
How do you create a new photo album? I do not see it in the settings when I open my photo's app.I don't like how all my pictures are going into "Camera photos" and would like to separate certain pictures out.
View 5 Replies View RelatedIs it possible to write an Softkeyboard without XML or is this the time I'll need it?The idea is: I have an Arraylist with buttons which have a specific position in the layout, height, width, text etc. Those buttons should create my keyboard by converting them into keys.If this won't work, my second idea is, to write a XML-File out of Java.I wonder if one of these ideas are possible.
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