android

Button color should not change when I release the button in Android

<item android:state_focused="true" > <shape> <gradient android:endColor="#FF9900" android:startColor="#FF9966" android:angle="270" /> <stroke android:width="3dp" ...

why won't apk file update

I'm developing an android app using Eclipse. I export the app using the Export Android App function. I sign and align the resulting apk file. I then copy this apk to a webserver and try to install it on my phone. It goes though the installation steps, and when I test the app it does not contain my latest changes. It seems to install...

Can I create a single class which can be the parent for every type of Activity?

I wish to have a single class which all of my Activity classes extend. I have ListActivities, Activities, MapActivities, TabActivities, etc in my App. I have many of these different activities in my app, ~12 activities. I want each of them to have the methods which are in the parent class. Right now, i have created 4 parent activity ...

Help needed for creating an Android Activity Layout - Screenshot given

Hello Experts, I need to create a screen(scrollable) exactly similar to the screenshot shown here . I have no idea regarding the kind of layout patterns that I should resort to or the widgets that I should use. The data including thumbnail links, is available dynamically. Experts, kindly help with your valuable suggestions, advices a...

Android input dialog.

I have class for showing custom dialog public class Add_Category_Dialog { public String inputed_value; private Context context; public Add_Category_Dialog(Context context){ this.context=context; } public void showDialog(){ AlertDialog.Builder alert = new AlertDialog.Builder(context); alert.setTitle("Title"); ...

Make my activity one of the mail apps shown in the intent chooser

When clicking an email address from a browser or contacts app... Is there any way for my app to show a mail client in the intent list? ...

Relativelayout programatically in android

I'm having trouble finding exactly the syntax I need to use to set the paramters on child views of a relative layout. I have a root relative layout that I want to set 2 child textviews next to each other like this ---------- --------- | Second | | First | ---------- --------- So I have public class RL extends RelativeLayout{ ...

How Can I Adjust Android SeekBar Sensitivity

I attempted to use a SeekBar for the first time, and I was disappointed with the results. I have an app that needs to use a slider to cover 80 spots. I want the user to be able to move in .5 increments (i.e. 10.5, 11.0). My max range is 40, which is why I doubled it to 80 to account for the decimals. Everything worked, but when I put it...

How to convert a String to an android.net.Uri

Question: I have found that java.net.URI has a create(String uri) option but the android.net.uri does not. More Specific: I am trying to grab the output of RingtoneManager's RingtonePicker and set it as the default ringtone with SetActualDefaultRingtoneUri; Intent intent = new Intent(RingtoneManager.ACTION_RINGTONE_PICKER); intent.pu...

Storing dimensions in xml file in Android

Hi, I am trying to consistently use the same dimension in all the views in my android app (e.g., a left margin of 20dp). If I were using HTML, I would simply use a CSS file, but I am at a loss of how to do this on Android. Is there a way I can store this value in a xml file inside res/values and then use it in layouts? e.g., I thought...

android UI: ImageButton with animation

I'm looking to make an ImageButton that contains an animation drawable, more precisely the repetitive tweened animation of a progressbar spinner (like the view/widget that exists for this). In xml I specified this for the ImageButton in the activity's layout: <ImageButton android:id="@+id/i_back_cover" android:layout_width="wrap_conten...

Android: Control Hierarchy in Custom Components

I'm reading the android docs on custom component development and i'm a little confused. If you're creating an activity, you can add add a hierarchy of views via setContent. however, if you're creating a custom component, you have to handle everything in the draw() overload. if i want to build a custom component that relies on a view hie...

Android: onPrepareDialogBuilder, onClick & setItemChecked

Hi, I've spent over a week trying to figure out a way to do a Limited Multi Selection Preference list. Nothing I've tried works. I'm ready to give up on Android if something seemingly simple is so hard. I've been programming a long time and don't remember being beaten up this badly by something like this. I have to assume I am not under...

Android: How do you make a custom onLongPress Animation?

If I have a view, such as a button, that I want to change the background animation that occurs on longPress how do I do that. By default on stock android it fades out from orange. I assumed it's just an alpha transition so I thought that by changing the background of the component I would get this affect for free. For example, I assumed ...

super simple custom view

This should be easy but for some reason it isn't working. I wanted to figure out how to do custom views, so I started by doing one that simply overrides Button, but adds no functionality, just to make sure it works. Java (file FooButton.java): package com.foo.bar; import android.content.Context; import android.widget.Button; public ...

Is it possible in Android to open other App than the one you clicked on?

I am wondering if it is possible to intercept an open application call, for any(most of the) installed application. Or at least for opening the Activity having the intent-filter's action set to Main (if it exists for an app). ...

From within android InstrumentationTestCase: Scrolling a listview to the next screen

I am writing my android JUnit tests in InstrumentationTestCase class. I need to scroll a list view to the next screen for several verifications. One of the scenarios where I need to scrool is given below. Say there are 25 entries and each screen can fit 10 entries. I need to iterate through the list and click the info button associated...

Android UI: what kind of layout options are mutually exclusive?

After designing layouts in Android for a while now, I still cannot get the hang of it. Often the results are unpredictable. I think part of this boils down to some layout options not working well together. I.e. if you are using one way of specifying your layout, you're not meant to use some other way. Notably, for me, changing layout_...

Android: Inflate View under a View then slide top view off

My issue is that I have a main screen, and I would like to dynamically spawn a view under it with a button click, then slide the main view off the screen revealing the view below it. I've accomplished this, but I feel like there's got to be a better way. The way I've done it is very limited in that you can't just spawn views over and ove...

What's the Android OS model for handling custom hardware keys?

Let's say i have an android device that has some extra buttons on it, can i register one of those buttons to launch my app? is there a configuration file on the device that controls hardware keys behavior? ...