I've been looking everywhere to see if there is a standard way of achieving this but I find a different solution everytime. Basically, I am trying to build a Custom ListView with an image and two-three lines of text besides it. In order to optimize it, I understand that the following have to be used: I could manage 1 and 2 but the third one is really confusing me. Is there a best practice for this?
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I' have a view that contains several textViews an ImageView and a Button . Because on small screen devices (or in landscape mode on big ones ) not all are visible I use a Scroll as the parent of the whole hierarchy to allow the user to view all the information. The things are suck that the button must be at the buttom of the view . However on big screen device , where it remains enough space at the buttom , the button is put immediatelly below the last textview,and seems to occupy all the remaining space (resulting in an unnactractive view) . Trying to use android:allignParentButtom ="true" not only that it has no effect but it puts the button at top of the screen . Has anyone any ideea how could I accomplish what I described ?
Here's the xml
CODE:......................
I've got a list few which I've optimized in every possible way. Performance matches the exchange email client so I'm happy in that respect. It's very fluid regardless of the number of records. The problem is the moment I introduce some conditional formatting of TextViews (think bold for unread, normal for read) the list starts to get choppy when the user flings the list. Is there a better way to tackle this formatting?
View 2 Replies View RelatedI'm tearing my hair out over this. I would like a ListView where each item in the list is an ImageView. I want each item to have a radio button next to it and only one item can be selected at a time (i.e. single choice mode). This code works fine for creating a list of text box with radio buttons:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:focusable="false"
android:gravity="center">
<CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/text1"
android:layout_width="fill_parent"
android:layout_height="?android:attr/listPreferredItemHeight"
android:textAppearance="?android:attr/textAppearanceLarge"
android:gravity="center_vertical"
android:checkMark="?android:attr/listChoiceIndicatorSingle"
android:paddingLeft="6dip"
android:paddingRight="6dip"/>
<ImageView android:id="@+id/preview"
android:layout_width="75dip" android:layout_height="100dip"
android:scaleType="fitCenter"
android:enabled="true"
android:focusable="false"/>
</RelativeLayout>
I copied the CheckedTextView item from the simple_list_item_single_choice.xml file used in the previous example. I assume that ListView must look for an item with id "text1" to use for displaying the selection status (I'm just guessing here as I cannot work out where the radio buttons are meant to come from). If I don't include the CheckedTextView item, I don't see any radio buttons at all.
When I use my custom adapter with the above xml file, I can see the radio buttons but selecting them does nothing. In addition, I've implemented the selection listener for the list view and this do not fire when I click items. What am I doing wrong?
I'm having a problem with incorporating an imageview with a textview into a list view.
Activity code:
Code:
ListView menuList = (ListView) findViewById(R.id.ListView_Menu);
String[] menuitems = {getResources().getString(R.string.playgamebtn),[code]....
displaying the imageview and the textview isn't the problem it is clicking on it. When clicking on the textview, there is an error with the ArrayAdapter.
I have a listlayout with items in it that looks like this:
There is first an ImageView (the light) and then two textViews. All of this inside a TableLayout. (source here: http://code.google.com/p/switchctrl/source/browse/trunk/android/res/layout/device_switch.xml)
I want to have a rotating animation of a loading indicator Ontop of this light when this particular device (light) performs an action or an action is performed on it.
How do I put an animation ontop of this light imageview?
I am trying to optimize the following code...
View 6 Replies View RelatedI'm developing an application that tracks the user's current position and stores it into a SQLite database. Everything works fine, but now I have the problem when querying the database for a track with more than 1000 records it takes nearly 1.5 minutes. On my Desktop it just takes 1 second. I know it's a query with many subselects but I wasn't able to get the right result another way. In my opinion this belongs to the aggregate functions like avg() and sum().
Here's my query:.................
I'm looking for some help optimizing some bitmap drawing code.
Here's my pseudo-code ...
I was just wondering if there was some developer app or trick to optimize the app icons on Jelly Bean to HD, instead of having them all blurry ? I used to have an iPod 4th Gen and there was an app in Cydia that would optimize the app icon to retina display, it was called iretiner >_> IS there a way to do this on Android ?
View 9 Replies View RelatedI want to create Login option in my application , so that once a person gets login that device creates token which is saved over server. From next time whenever he/she operates the application, directly goes to next label by checking that token keyvalue pair over server.IT requires login page only when that keyvalue pair is deleted from the server.
View 1 Replies View RelatedIn my application ,am work with a large database.Nearly 75000 records present in a table(totally 6 tables are there).i want to get a data from three different table at a time.i completed that.but the search process was slow.how can i optimize the searching process?
View 3 Replies View RelatedI have 5 text views to be added horizontally,and it needs to occupy the displaywidth.When i change the screen orientation,it should change based on it.Is that can be done by Layout or it should be done programmatically..
View 2 Replies View Relatedmy app downloads a zip with about 350 files. A mix of JPG and HTML files. The function i wrote to do it works just fine but the unzipping takes for ever. At first i thought the reason might be that writing to the sd-card is slow. but when i unzip the same zip with an other app on my phone it works much faster. is there anything that i could do to optimize it?
here is the code:.................
My game - Tower Raiders - is continually floating fairly close to running out of bitmap memory. Unfortunately, I haven't found good information on profiling bitmap memory usage so that I can optimize / make informed decisions / add new content if it allows / etc.
I'm aware that bitmap memory is not heap memory, as it's allocated natively. But that it is accounted for somehow in the VM and influences garbage collection. Maybe it's an oversimplification of how bitmap memory works - but I'd like to find a tool etc or some way of determining I as the game is running right now, there are no more than X bytes of usable bitmap memory remaining.
So, if anyone has any advice etc that would help me in these respects I would greatly like to hear about a workflow for this.
I would like to design a layout for my android app which has imageviews/Textviews placed as shown in the figure below.
Right now, i tried to use Absolute layout, but i know that will create problems as the screen size changes.
I am simply trying to create a layout where there are multiple TextViews (and ultimately an EditText) stacked vertically in the activity. However, the only thing displayed is my top title bar and the first TextView (with the "Name" text). Why won't anything else show up? Here is my code...
View 1 Replies View RelatedI have a class that extends android.app.Dialog, the layout is done in an xml file, and the setup (button listeners, etc) is done on the onCreate method. My problem is that whenever the dialog is displayed, then dismissed, and displayed again, the Editable TextViews are still populated with the information that was displayed previously. What is the common way to clear these text fields?
View 2 Replies View RelatedI want to do optimization of my android application.
Can anyone please tell what are different ways to optimize code and performance in android?
I gone through one tool i.e. Zipalign: an Easy Optimization.
Any other tools available?
I'm trying to create a homescreen Android widget and have it alternate between two different textviews I would send to it. Is this possible?
View 2 Replies View RelatedI have a problem with two Textviews on the same height in a RelativeLayout running into each other.
I use the following Layout.
CODE:...........
This gives me this view:
Everything is as I need it except the two textviews name and information are displayed on the same screen space with the one on top of the other.
I am new to both Android and Stack Overflow. I have started developing and Android App and I am wondering two things:1) Is it possible to parametrize a TextView? Lets say I want to render a text message which states something like: "The user age is 38". Lets suppose that the user age is the result of an algorithm. Using some typical i18n framework I would write in my i18n file something like "The user age is {0}". Then at run time I would populate parameters accordingly. I haven't been able to figure out how to do this or similar approach in Android. 2) Let's suppose I have a complex object with many fields. Eg: PersonModel which has id, name, age, country, favorite video game, whatever. If I want to render all this information into a single layout in one of my activities the only way I have found is getting all needed TextViews by id and then populate them one by one through code. I was wondering if there is some mapping / binding mechanism in which I can execute something like: render(myPerson, myView) and that automatically through reflection each of the model properties get mapped into each of the TextViews. If someone has ever worked with SpringMVC, Im looking for something similar to their mechanism to map domain objects / models to views (e.g. spring:forms)
View 1 Replies View RelatedI have a string called CurrentString and is in the form of something like this "Fruit: they taste good". I would like to split up the CurrentString using the : as the delimiter. So that way the word "Fruit" will be split into its own string and "they taste good" will be another string.and then I would simply like to use SetText and 2 different textviews to display that string. What would be the best way to approach this?
View 1 Replies View RelatedIs there a way i can create a view and add some textviews into it ? programmatically ? any sample code?
View 2 Replies View RelatedI have a activity on my app, that shows a lot of options that can be configurated (textviews and textedits on a linearlayout)
But I have a problem, there are more items that my windows can show, and I can't go down doing down movement with my finger on the screen.
I am trying to do it with scrollview, but i can't my screens appears black and all mny items dissapear
Here is my layout:
CODE:..................................
I have a horizontal LinearLayout, inside which I have 2 TextViews. Let's say that the LinearLayout's width is 320px. If the TextViews don't fit into the LinearLayout (they are together wider than 320px), I want to somehow achieve this:
The second TextView is fully displayed and is at the right edge of the LinearLayout
The first TextView is only shown partially, only first x characters are visible
What I mean:
[TextView1|TextView2_____________] // this is normal
[VeryVeryL...|VeryVeryLongTextView2] // VeryVeryLongTextView1 is not fully visible
I need some help with the following scenario, as I am so used to make all of my layouts with XML, but now I have a situation where that won't work.
I am working on the second version of my app that delivers news, in the comments section I used to use a listview to display user comments, but it doesn't work that great for comments that could be anywhere from 5 to 500+ characters long. So I want to create a whole bunch of TextViews in a scrollview and stack them below each other.
My best guess was this, although it is definitely wrong because it only shows one comment. I assume I have to use some kind of LayoutParams and so I've looked into it but am still not sure how exactly to use them.
I have a galaxy s3 and would like to know how to optimize a custom rom I am trying to make for battery consumption and speed. I know I can add a different kernel but is there anything I can do at the rom level? Btw this is my first custom ROM and I am just doing it for fun.
View 1 Replies View RelatedHow can I layout 2 TextViews and a SeekBar on the same line in my layout xml file? I know But how can i specify TextView (one on the right, one on the left) to use only the width it needs to display the string in the TextView while SeekBar will use up the rest of the line? And i don't know the text vale of each TextView in the beginning and these TextView can change value in my application.
View 1 Replies View RelatedI was wondering how we could add objects such as textview and radio buttons to the activity through code and not the XML file and still have it run correctly. I tried adding a simple textview below but I got an error when I tried to run. Can any1 tell me how I could add the textview in correctly? import java.util.ArrayList; import android.app.Activity; import android.os.Bundle; import android.widget.ScrollView; import android.widget.TextView;public class Q_end extends Activity { /** Called when the activity is first created. */ private ArrayList<String> qs = new ArrayList<String>(10); private ArrayList<String[]> as = new ArrayList<String[]>(10); @Override public void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState); setContentView(R.layout.end_app); ScrollView we = (ScrollView) findViewById(R.id.viewer); String[] temp = new String[4]; temp[0] = "the"; temp[1] = "the1"; temp[2] = "the2"; temp[3] = "the3"; as.add(temp); String temp2 = "the rocks says"; qs.add(temp2); qs.add("the question is"); String[] temp3 = new String[1]; temp3[0] = " "; as.add(temp3); TextView gg = new TextView(null); gg.setText(qs.get(0)) we.addView(gg);
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