Android :: Droid Development : Automatically Add Linebreaks When Using SetText()?

Oct 5, 2010

In my app is the ability to read a file.
This works perfectly, but there's a problem.
No line breaks or whatever they are called get added when I append the file's contents to my big EditText, so this:code...

How can I stop this and make it appear in the EditText as it appears in the file?

Android :: Droid Development : Automatically Add Linebreaks When Using setText()?


Android :: SetText For EditText Is Not Working In 1.5

Jun 2, 2009

I upgraded my project from 1.0 to 1.5.

I found the function setText is no longer working in 1.5. Does any one knows why?

Following is my code:.................

the last line will let the simulator throw error message: THe application com.application.easyblog has stopped unexpectedly. Please try again.

( it is working in 1.0)

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Android :: TextView.setText Force Closes

Sep 13, 2010

I'm attempting Google University Android lab1 you are asked to change a TextView's text content according to the value passed via the Intent from another activity.

I tried out the rest of my code but...why does my app force close when I add the "tv.settext(...) line"?

CODE:...................

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Android :: App Force Close When SetText In An Update Method

Nov 13, 2010

I have an android app I am just experimenting things on and I cannot seem to figure out why my app force closes when I update a TextView via a while loop. When I comment out the updateText method it runs fine.

CODE:....................

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Android :: Calling TextView.setText() Periodically Causes UI To Jerk

Sep 28, 2010

I'm coding an audio player where a thread updates the TextView representing the track's elapsed time, every 250 milliseconds. The display looks like this:

1:30/2:30<-----Progress Bar----->
TextView 1 is 1:30/ and TextView 2 is 2:30.
Both are set to wrap_content for width.

What happens is that on every 250 millisecond cycle, the thread checks the current time and updates TextView 1. For this brief moment, TextView 2 and the progress bar get pushed momentarily to the right by about 2-4 pixels. Then they come back to place until the same thing happens during the next cycle. I don't know what's happening. There are no trailing space characters, etc and everything should, theoretically, be working smoothly but it's not.

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Android :: Avoiding String Allocation In TextView.setText()

Dec 28, 2009

On Android 1.5, using the Allocation Tracker I see that every time I call TextView.setText() with a StringBuilder as first argument, a String gets allocated from the following call stack (first line is last call):

java.lang.AbstractStringBuilder toString java.lang.StringBuilder toString android.text.TextUtils stringOrSpannedString android.widget.TextView setText

I tried specifying the buffer type with setText(strBuilder, TextView.BufferType.NORMAL) but it doesn't change anything.

Is there a way to avoid this allocation?

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SetText Changing Wrong Text

Feb 25, 2013

I've searched using a couple of the above keywords and found nothing.Basically I have a layout with a few textview elements a few edittext elements and a few buttons. In the java any incorrect entries by the user in the edittext elements should change a textview element which acts as user instructions to prompt the user to make corrections, the problem is it actually changes one of the button texts. Here is the code for the layout (activity_main.xml):

Code:
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/button4"
android:layout_marginTop="26dp"
android:background="@color/yellow"
android:gravity="center_horizontal"
android:text="@string/hello_world"
android:textColor="@color/red" />
[code]..

I know this worked as intended when I only had buttons 1-3, but adding 4 and 5 seems to have started something odd, I can't see anything wrong so am guessing this is a stupid mistake on my part. For reference it is button4 which has it's text changed by the java code. My only thought was that this was something more complicated caused by relative layout and inheritence.

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Android :: Why Does TextView.setText Cause Enclosing Scroll View To Scroll?

Jun 24, 2010

I've got this odd problem which is happening on 1.6, 2.2, and a MyTouch 3G Slide (which is API #7, and listed as "2.1-Update1" in the Android Device Chooser). If anyone can explain what I'm doing wrong & how to fix it (or possibly confirm that this is an Android bug)The basic idea for my app is to make a stopwatch-sort of thing, in that the user can tap a button to start a timer, then tap it again to stop (pause) the timer; further taps alternate between resuming the timer and pausing the timer.I've got a top-level ScrollView which contains a RelativelLayout, which contains a bunch of widgets. The first widget is a HUGE button (so that it's easy to press), which pushes all my other widgets below the bottom of the screen. This is intentional, as I want to rely on the ScrollView (and an on-screen reminder to the user) to make the rest of the input options available.I've got a simple state-machine type setup, where mState is the current mode (STATE_ TIMER_ NOT_ STARTED before the user presses any buttons, RUNNING after the first press, and then PAUSED after the second, back to RUNNING after the third, etc, etc).

All this works great EXCEPT that when the timer is running, and the user presses the start/stop/resume button again, the ScrollView will scroll down a ways. I am NOT issuing this command (I don't even have a reference to ScrollView object), and I'm not sure why it's doing this.

REPRO:Compile + run the below samples. When the app starts, press the 'Start Timing' button. Use your thumb (or the mouse) to touch-drag the screen upwards (so you can see the RatingBar), then drag it back downwards (so the button is again completely on-screen). Tap the button (which now reads 'PauseTiming') again, and it'll jump down a bit. It should NOT be jumping/scrolling down, since there's no statement (that I can see) that tells it to scroll down. As near as I can tell, it's the setText that causes the scrolling ( when I comment those lines out, no scrolling occurs).WHAT I'M ASKING FOR:if I'm doing something dumb & you could point out what it is, I'd really appreciate it! I wonder if 'touch mode' might have something to do with this, since it does NOT appear to happen (in the emulator) when I use the mouse's scroll wheel to move the panel upwards (i.e.,instead of the simulated finger-dragging). I can't find a whole lot on touch-mode, and nothing specific on focus/selection in touch mode within a ScrollView if you can confirm that this error occurs for you too, that would be ok, too (since misery loves company.AHEM I mean, since it might help confirm that it's not just me MyTestApp.java package bug.android.scrollview;
import android.app.Activity;
import android.os.Bundle;
import android.text.format.Time;
import android.view.Display;
import android.view.View;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.TextView;
public class MyTestApp extends Activity {
public final static int STATE_TIMER_NOT_STARTED = 1;
public final static int STATE_TIMER_RUNNING = 2;
public final static int STATE_TIMER_PAUSED = 3;
private int mState;
Time t = new Time();
private Time data = new Time();
private Button btnStartStopResume;
private TextView lblSpacer;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.new_time_entry);
btnStartStopResume = (Button) findViewById(R.id.btnStartStopResume);
// Set the button's size so that the other info will also be visible
Display display = ((WindowManager) getSystemService(WINDOW_SERVICE))
.getDefaultDisplay();
// This is such a hack, but the windowScroller doesn't appear to
// have a height at this point in the lifecycle (nor in 'onResume' :( )
btnStartStopResume.setHeight(display.getHeight() - 200);
lblSpacer = (TextView) findViewById(R.id.lblSpacer);
reset();
} public void doStartStopResume(View v) {
if (mState == MyTestApp.STATE_TIMER_NOT_STARTED) {
mState = MyTestApp.STATE_TIMER_RUNNING;
data.setToNow();
} else if (mState == MyTestApp.STATE_TIMER_RUNNING) {
mState = MyTestApp.STATE_TIMER_PAUSED;
String s = getString(R.string.add_scroll_down_to_add);
lblSpacer.setText(s);
} else if (mState == MyTestApp.STATE_TIMER_PAUSED) {
mState = MyTestApp.STATE_TIMER_RUNNING;
public void doReset(View v) {
}public void doNewRunClick(View v) {
public void doAddTiming(View v) {
public void reset() {
mState = STATE_TIMER_NOT_STARTED;
new_time_entry.xml
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/windowScroller"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
> <RelativeLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
> <Button
android:id="@+id/btnStartStopResume"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="5dip"
android:text="Start Timing"
android:textSize="40dp"
android:height="290dp"
android:onClick="doStartStopResume" />
<TextView
android:id="@+id/lblSpacer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/btnStartStopResume"
android:layout_centerHorizontal="true"
android:text="@string/add_scroll_down_for_more" />
<TextView
android:id="@+id/lblTimeStartLabel"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@id/lblSpacer"
android:layout_alignParentLeft="true"
android:clickable="true"
android:onClick="adjustStartTime"
android:text="Start of this run:"
android:textSize="8dp" />
<TextView
android:id="@+id/lblTimeStart"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/lblTimeStartLabel"
android:layout_alignParentLeft="true"
android:clickable="true"
android:onClick="adjustStartTime"
android:text="--:--:-- --"
android:textColor="#FFFFFF"
android:textSize="26dp" />
<TextView
android:id="@+id/lblElapsedLabel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/lblSpacer"
android:layout_alignRight="@id/lblSpacer"
android:layout_marginRight="5dp"
android:text="Elapsed Time:"
android:textSize="8dp" />
<TextView
android:id="@+id/lblTimeElapsed"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/lblElapsedLabel"
android:layout_alignRight="@id/lblSpacer"
android:layout_marginRight="5dp"
android:textColor="#99ff66"
android:text="-- m -- sec"
android:textSize="26dp"
android:layout_marginBottom="10dip"/>
<CheckBox
android:id="@+id/chkNewRun"
android:onClick="doNewRunClick"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@id/lblTimeElapsed"
android:text="This is a new run of timings"
android:layout_marginBottom="10dip" />

<TextView
android:id="@+id/lblIntensity"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Intensity (1 = none 5 = max)"
android:layout_below="@id/chkNewRun" />
<RatingBar
android:id="@+id/rbIntensity"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/lblIntensity"
android:numStars="5"
android:rating="2"
android:layout_marginBottom="5dip" />

<TextView
android:id="@+id/lblNotes"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Notes:"
android:layout_below="@id/rbIntensity" />
<EditText
android:id="@+id/txtNotes"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@android:drawable/editbox_background"
android:layout_below="@id/lblNotes"
android:layout_marginBottom="10dip" />
<Button
android:id="@+id/btnReset"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/txtNotes"
android:layout_alignParentLeft="true"
android:layout_marginLeft="10dip"
android:layout_marginRight="10dip"
android:text="Reset"
android:onClick="doReset" />
<Button
android:id="@+id/btnOk"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/txtNotes"
android:layout_toRightOf="@id/btnReset"
android:layout_alignParentRight="true"
android:layout_marginLeft="10dip"
android:layout_marginRight="10dip"
android:text="Add Timing To List"
android:onClick="doAddTiming" />
</RelativeLayout>
</ScrollView>
strings.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">Timer</string>
<string name="dlg_edit_timing_title">Edit A Timing</string>
<string name="add_scroll_down_for_more">< Scroll down for more options! ></string>
<string name="add_scroll_down_to_add">< Scroll down to save this timing! ></string>
<string name="start_timing">Start Timing
</string>
<string name="stop_timing">Pause Timing
</string>
<string name="resume_timing">Resume Timing
</string>
</resources>
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="bug.android.scrollview"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".MyTestApp"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-sdk android:minSdkVersion="5" />
</manifest>
UPDATE 1: Adding if( btnStartStopResume.isInTouchMode() )
Toast.makeText(this, "TOUCH MODE", 2000);
elseToast.makeText(this, "NOT touch mode", 2000);
then setting breakpoints in the debugger confirms that the button is always in touch mode (regardless of whether I finger-drag the panel up/down, or mouse-wheel it up/down). So it's a combination of being in touch-mode AND finger-dragging the panel after the 2nd button-press (i.e, when the app is in 'stopped/paused timing' mode) that's causing the odd extra-timing in subsequent pauses.
UPDATE 2:
I just noticed that it's scrolling down to the EditText, and no further. It looks like when you move the panel down the EditText gets the selection, and after the click event the ScrollView scrolls back to the thing that has the selection. Seems to explain why the mouse-wheel approach doesn't have this problem (it moves the selection/focus back up to the button).

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Android :: IRC App That's In Development For Droid?

Dec 18, 2008

Does anybody know of an IRC app that's in development for android?

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Android :: Way To Get Books On Droid Development?

Apr 6, 2009

The documentation on Google's websites is great, but it would also be great to have a text to carry around. Are there any *good* books on programming in Android yet?

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Android :: How Will WAC Affect Droid App Development?

Feb 16, 2010

I like the idea of the Alliance, it is very logical. It raises a question for me though. How do they intend to run apps seamlessly across multiple operating systems? Will the apps all have to be developed in something like Java? I am studying mobile app development, targeting the Android OS, and using Java. I was about to order a load of books(eg hello android) on developing apps for Android today, but I worry the new Alliance platform/technology might render these books and my initial studies obsolete in some way.

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Android :: Need API For Accessing Gmail For Droid Development

Sep 17, 2009

Can any body tell me the official or un official API for android Phone Development, accessing gmail on mobile phones.?

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Android :: MacBook Pro - Use (32 , 64-bit) Eclipse For Droid Development?

Mar 24, 2010

Should I use 32-bit Eclipse or 64-bit Eclipse for Android development? I'm on a MacBook Pro (Core 2 Duo). Does it matter which version for Android coding?

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Android : Can I Use MS Visual Studio For Droid Development?

Sep 3, 2009

Can you use Visual Studio for Android Development?

If so how would you set the android SDK instead of .NET framework and are there any special settings or configuration?

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Android : Droid Development Podcast - Need Recommendation?

Jan 22, 2010

I have read http://stackoverflow.com/questions/1644/what-good-technology-podcasts-are-out-there, and other related questions, but I have not found anything Android-specific.

Does anybody listen to any such podcast? Want to recommend it?

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Android :: Droid UI Development Lend Itself Well To A Particular Design Pattern Like MVC?

Feb 23, 2010

Does the Android platform lend itself well to a particular style of UI programming like MVC or MVP? Most of my UI experience is with spaghetti code on a very old embedded device or in GWT with MVP so I do not know where to start.

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Android :: Droid Development : Change Media Volume?

Nov 14, 2010

Can i change the media volume? and how? I used this so far:

setVolumeControlStream(AudioManager.STREAM_MUSIC);

But have a seekbar and want to change the media volume not ringervol.

So can someone show me how to just change the media volume at onCreate() and i fix the seekbar later.

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Android :: Install Droid Software Development Kit Directly?

Sep 9, 2010

I am quiet new in the field of Android please anyone tell me that how should i install the sdk of Android..

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Android :: Can't Install Droid Development Kit For Eclipse / Get It To Work?

Apr 16, 2009

I have tried for 10 hours. I cannot install ADT plug-in for Eclipse 3.4.2.

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Android :: Version Of Eclipse Safe For Development For Droid?

Sep 17, 2010

Apparently, eclipse 3.6 doesn't work well with the android sdk, but I'd like to use eclim which requires this version of eclipse. Does anyone have any recent experience developing for android with eclipse 3.6? Recommendations for someone who wants to use vim for android development?

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Android : Where I Can Access Databases In Eclipse For Droid Development?

Jun 24, 2010

I apologize if this is a stupid question, nevertheless I need to ask. I am new to Android development and have gone through every single tutorial and reference provided. I have been doing great, with the exception of one stupid problem; I cannot find where the databases for some apps are stored.

For example I would like to build my own app that includes thousands of pre-made records from an established SQLite Database. As a reference I tried to use the "Searchable Dictionary" app from the provided programs in the Android SDK, but cannot find it.

I read that all databases are stored in /data/data//databases on the device, but I cannot find this location. So how would I access the database in Eclipse or anywhere else for that matter to set up my pre-configured database?

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Android : Create Droid Development With PHP / Port Php Code In App?

Jan 4, 2010

Is it possible create android applications using PHP? can we port php code in to the android applications?

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Android :: How To Learn IPhone Development From Perspective Of Droid Developer?

Jul 31, 2010

I consider myself an Android developer, after having created four apps and learned a lot by creating them. Now I've begun my venture into the iPhone app development world, and I don't remember the Android learning curve being this extreme. It doesn't help, though, that I was very familiar with Java and Eclipse whereas I hardly even know how to use OS X. I learn fast and I know exactly what I want to make, I just need the means to get there. I'm really floundering with Xcode and the new project templates (of which there are several, and I hardly know what they mean). I know there are many books and things out there for starting from scratch but I feel like my Android knowledge should count for something. Is there a good resource for learning the basics of iPhone development, given that I am quite familiar with the Android platform? I'm looking for anything that converts Android knowledge to iPhone knowledge; a table of UI element names in each platform, or of concept equivalents, or a compare/contrast of the frameworks involved, or anything that will increase the rate of learning given that I know the Android platform already.

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Android :: Get Started New Project With Droid Development On Eclipse Pulsar?

Aug 10, 2010

I am just starting to get setup for android development. I have installed pulsar and the proper sdks I think. I want to develop for the droid x.

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Are there any tutorials for getting started using pulsar for android dev?

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Android :: Resources To Get Started With Test Driven Development On Droid Platform?

Feb 25, 2010

Anyone know of any good resources to get me started with test driven development on the Android platform?

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Mar 7, 2010

I'm trying to install SDK for screenshots and development. I installed Eclipse and SDK and everything seems fine but the USB Drivers are not working correctly. I heard there was a revision of the USB drivers but not sure. If anyone has the lateset drivers please let know.

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Motorola : HTC Sense - Development In Rooting Flash On Droid X?

Jul 24, 2010

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Motorola Droid : What Does Android / Google Back Up Automatically?

Apr 22, 2010

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Android : Data Automatically From Droid Market To Put It On Website?

Jun 16, 2009

We have a website with free games and we would like to had direct links to the great games from the android Market.

Is there a possibility to get the data automatically from the Android Market to put it on my website?

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Android :: Possible To Retrieve Device's Phone Number Automatically In Droid?

May 21, 2010

I am wondering if it is possible to retrieve device's phone number via the Android API(specifically 1.5 API).

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