Android : Changing Text Value Of A Textview Dynamically

Nov 9, 2010

I have a textview in my XML layout file, but when I try to change its text value with code pragmatically (dynamically, depending on which button the user clicks) then the text of the textview doesn't change.

This is the code that I tried:

TextView userText = (TextView) findViewById(R.id.User);

userText.setText(bundle.getString("user"));

In debug mode, I can see that usertext has the changed text, but the change doesn't appear on my mobile window... I don't know why.

EDIT: SOLVED! it was a problem with my relative layout, text is out of the window!

Android : Changing text value of a textview dynamically


Android :: Dynamically Change Text Color Of A TextView Inside A ListView

Nov 18, 2010

I'm trying to create a game lobby for a project, and I'd like the game's status text to be a different color: red for an "[IN PROGRESS]" game and green for a game that's "[Waiting for x players]". The ListView will be populated with data, and each ListView item will have a game ID and then immediately to the right of that the game's status.

Right now I'm essentially using the Hello ListView code to create my ListView.

(In constructor)

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

Then, I have a refresh button that obtains data from our database. It will get two Strings, one for the ID of the game, and the other for the status of the game. If the game status is 0, then it's still waiting for players. If the game status is 1, then the game has started. So, I create a gameItem to add to the gameList:

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

This is where I'm stuck. I don't really understand how I can alter the specific TextView when I create the gameItem or when I add that to the gameList. There isn't a way I can see of accessing the TextView's properties. I see how the text of the view is set (through the mapping of the strings to "line1" and "line2", but I don't know how to change any of the properties.

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Android : Alert Dialog With Dynamically Changing Text On Every Request

Jun 5, 2009

I want to show an AlertDialog with one option that might change on every request. So for example at one time I want to show the option "add to contacts" while another time it should be "remove from contacts".

My code does work on the first time, however Android seems to cache the AlertDialog so that onCreateDialog is not executed next time. Therefore the option doesn't change anymore. Can I prevent this caching, or is there just another way of changing the option?

I am working with SDK 1.5 but using 1.1. Code...

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Android : Layout - Change The Text Color Of The Textview Inside The Listview Dynamically

Oct 17, 2010

Can I modify android.R.layout.simple_list_item_1? For eg., I want to change the text color of the textview inside the listview dynamically. For this, I need to get to the textview and change its color.. How can I do that?

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Android :: Changing Application Icon Text Dynamically In Android

Apr 27, 2010

I am developing a calendar app, wherein i will using a service to display date in the application icon text itself. For Eg: If date is: 26 Apr 2010, then my application name in the phone menu will also show the same.So I am not understanding how to change the application's icon text dynamically through program.

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Android :: How To Dynamically Set Textview Height

Sep 7, 2010

In my application I need to set dynamic text to my textview so I want it to get resized dynamically. I have set:

< TextView

android:id="@+id/TextView02"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:textStyle="normal"

android:layout_weight="1"

android:singleLine="false"

android:minLines="4" />

And from java code I am setting text of the textview at runtime.My textview height is not going beyond 1 line and the text is getting cut. Can anybody please help?

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Android : Add A TextView Dynamically At Particular Location?

Jul 4, 2009

Is it possible to add a TextView dynamically at a particular location (x,y)?

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Android :: Adding Textview To Linearlayout Dynamically?

Nov 17, 2010

I try to add a texview to linearlayout dinamiclly such as in the following code, but it doesn't appear when i run the application ?

setContentView(R.layout.advanced);

m_vwJokeLayout=(LinearLayout) this.findViewById(R.id.m_vwJokeLayout);
m_vwJokeEditText=(EditText) this.findViewById(R.id.m_vwJokeEditText);
m_vwJokeButton=(Button) this.findViewById(R.id.m_vwJokeButton);
TextView tv=new TextView(this);
tv.setText("test");
this.m_vwJokeLayout.addView(tv);

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Android :: Increasing Height Of Textview Dynamically?

Sep 13, 2010

I have a class which inflates linearlayout. The inflated xml contains a textview.

I want to change the height of that textview dynamically as per the content.

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Android :: Change Textview Dynamically In Same Activity?

Mar 16, 2010

I am trying to develop a simple application where users need to answer certain questions. I want that the textview should be changed dynamically in the same activity with sliding to left or right animation.

Can someone let me know how to do this?

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Android :: Setup Background Of A TextView Dynamically From Xml File?

Oct 10, 2010

I have an XMl file like below which I will use to set background for Textview:

row.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"

android:shape="rectangle">

The above Xml I will set as background for TextView in main.xml as below:

main.xml

<TextView
android:id="@+id/rowtext3"
android:text="Availablity"
android:layout_height="25px"
android:layout_width="60px"
android:textSize="10px"
android:textStyle="bold"
android:textColor="@color/black"
android:gravity="center"
android:background="@drawable/row"/>

But I want this to do from code rather than Xml.I have done everything that I have done in Xml like font,width,Height,font dynamically through code , but not able to set Background that I mentioned in Xml file . How can we set content of Xml file as background to textview similar to how we set background as XML in main.xml.

In the code I have done like this:
t1=new TextView(this);
t1.setText(ed1.getText());
t1.setHeight(25);
t1.setWidth(60);
t1.setTextSize(10);
But I didn't find how to set background i.e. how to set XML content as background?

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Android :: Dynamically Changing Views

Jun 18, 2010

I'm trying to learn how to build apps for Android. The first simple app, which will become a component of a bigger app I hope to build, is to have a button on the screen where, when tapped, it adds something new to the view. For instance: Imagine a layout that only has a button:

[Create!]

When that button is pressed, the view gets a new row added to it:

[Create!]
A Something!..............

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Android :: Setup Custom Title Bar TextView Value Dynamically In Droid?

Mar 10, 2010

I have created custom title bar using following titlebar.xml file with code...

now i want to set textview value dynamically in each activity can any one guide me how can i achieve this?

using findviewbyid here i don't get reference of that textview to set value because
main layout does not contains any textbox with such a name but mytitle.

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Jul 21, 2009

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Jan 24, 2009

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Android :: TextView - Setting The Background Color Dynamically Doesn't Work

Sep 23, 2009

Setting the background color programatically of an android TextView doesn't seem to work.
I'm I missing something!

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

I also have this file (colors.xml) in my res/values folder

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

Also, setting the text color causes the TextView to disappear.

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

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Android :: Changing Position And Margin Of Button Dynamically

Sep 24, 2010

I would like to change margin of my buttons in application. Suppose I have 5 buttons like this in a linear layout, one below d other. When I focus on a button, its width should increase (which I know how to handle) and at the same time, width should increase linearly towards both left and right. i.e. If the current width of the button is 250 with x co-ordinate as 50 (that means button's left is 50 and button's right is 300), when I focus on the button I should get x co-ordinate as 75 (left = 25 and right = 325). How to change the margin/x co-ordinate of the button?

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Sep 29, 2010

I am trying to change linear layout or any other widget width or height dynamically but throwing exception.so how can I change the dimensions dynamically.....

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Aug 1, 2009

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Oct 14, 2010

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Jul 14, 2010

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Android :: Changing TextView Properties Of A ListView Crashes The App

Sep 3, 2010

CODE:.....

list_item.xml

CDE:......

The problem is that I want to set a new typeface for the TextView in the ListView, and it seems it can't be done in the XML file!

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Android :: Changing One TextView With OnSensorChanged Without Redrawing Entire Layout

Jun 8, 2009

I am having a bit of trouble with my current application. With a button at the beginning of my app, I send out Intents for two activities, one gets a camera object, and starts a preview screen. On top of that, in a separate layout, there is an activity with a translucent view, which shows a resource image (the user is trying to get the image he is actually taking to align with the translucent image) and a couple of textviews displaying a target phone orientation as well as the user's current phone orientation.

when I update the text value of one of my text views in my onSensorChanged() field, the system constantly reallocates 1.22MB and garbage collects it. I can only assume that this is because it is redrawing the entire layout with the translucent image and the text fields, because if I remove the view containing the translucent image from the layout, my text field updates 10x quicker and I don't have ridiculous heap growing / garbage collecting. I am wondering how to go about getting the text fields to update without redrawing the entire surface. I am very new to UI design, and this code was written by someone else before I took over the project, so I don't understand much of what is going on in the custom view he wrote to take care of the translucent image -- called MyView. I will post the code for the layout as well as the MyView code below.................................

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Jun 11, 2013

i'm working on an android application with 2 activities.

The first activity contains 2 buttons ( btn1 , btn2).

The second activity contains a textview and a back button.

In the string.xml I have two strings ( str1, str2).

What I want is when I click on btn1 the second activity should open and the textview will show the first string str1 and when I click on the second button btn2 the second activity open and the same textview show the second string str2.

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Aug 18, 2009

How do you get the text of a TextView to be Justified (with text flush on the left- and right- hand sides)?

I found a possible solution here, but it does not work (even if you change vertical-center to center_vertical, etc).

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May 10, 2010

I want to change the color of a substring while it is drawed in a text view. For example, if I have this text: "Hello this is a text in black color and (COLOR_RED_BEGIN)this is a text in red color. (COLOR_RED_END)", then when the text view draws the text the substring "this is a text in red color." must be drawn in red.

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Oct 15, 2010

if there are five text in a text view and we want to pass one of them on click event to the next class text view which method i m used on android

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Oct 27, 2010

I am trying to get the text input/values from an EditText widget as its being typed. please anybody know how or which method i should use? can't seem to find one that will help. thanks for your consideration.

i tried this but not working: code...

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Feb 16, 2010

In my application i want to change button text for every 3 sec.

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Feb 11, 2010

I'm trying to make an app with localisation built in, but I want a way that I can create a web link within the text, the URL being defined elsewhere (for ease of maintenance).

So, I have my links in res/values/strings.xml code...
But this didn't work either.

So, I'd like to know if there's a way of dynamically adding multiple URLs to different sections of the same text which will link to web content?

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