I am using android:layout_marginTop="100dip" in my imageview,i want to set margin top to each image depending its height using coding not using xml,how can i set image's margintop?
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<ImageView android:id="@+id/ImageView01"
android:layout_gravity="center_horizontal"
android:layout_marginTop="30dip"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scaleType="fitCenter"
android:adjustViewBounds="true">
I want to set this property in coding for image view not use this,how can i make it?
How can I draw margin for Image by using Rect object (I need also to change the margin color for every image), so in the end I will have a new Image that surrounded by margins.
View 2 Replies View RelatedIs it possible to add a little bit of space between a RadioButton and the label while still using Android's built-in components? By default the text looks a little scrunched.
<RadioButton android:id="@+id/rb1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="My Text"/>
I've tried a couple of things:
Specifying margin and padding seem to add space around the entire element (button and text, together). That makes sense, but doesn't do what I need.
Creating a custom drawable via XML specifying images for the checked and unchecked states, then adding a few extra pixels to the right side of each image. This should work, but now you are stepping outside the default UI. (Not the end of the world, but not ideal)
Add extra whitespace to the beginning of each label. Android seems to trim a leading space character, as in " My String", but specifying unicode U+00A0, as in "u00A0My String" does the trick. This works, but it seems kinda dirty.
Any better solutions?
I'm currently developing a software under android and im getting quite quickly some OutOfMemoryException.... I did modified some part of my code to use more static variables instead of making new allocation with the "new" operator but is there any things else to do ? or any other tips ? Any advices would be welcome.
View 4 Replies View RelatedI wanted to check whether there is any JAVA Coding standards in Android platform for performance improvements.
For Example, like an Effective Java code in J2EE environment is to defined the number of elements in the ArrayList constructor rather leaving it blank (new ArrayList(noOfRows)) etc. I definetly suspect these performance tuning tips should be available because of the memory and resource constraints.
I have an application I am writing for Android that basically does a screen scrape of a large table on the web and presents it in a nicer way on the handset. Its 500k of html and takes about 20 seconds or so normally.
When I have my phone hooked up to the computer, I used to be able to just click on "Run" and my code would execute similiarly speedy, as opposed to Debug where it would take 10 minutes to complete.
Now, however, clicking "run" behaves just like debug mode.... I don't want this overhead, how do I get eclipse to stop sending my app to the debugger already? I have searched online and found a couple people with the same issue, but simply rebooting my phone doesn't fix it, and there have been no other solutions posted that I have found.
I have defined an List View in xml as below
Code...
And i need to re-define the layout margin upon some result in my programe ,how i can achieve this
I have a small doubt, Which is the best way to design UI for Android Coding or Desinging in XML? Which is better in performance?
View 3 Replies View RelatedI'm a beginner android developer, and I've only been coding for a few months. I'm testing some layouts in a project using eclipse, and I'm following the guidelines from a textbook (beginning android 2.0) and I'm getting some rather perplexing errors. The first error is in my main.xml. my code is as follows:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/ android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal"
I m really very fed up coding translate animation. actually my image is moving from one position to another but it is coming back to its actual position. can any body here provide me the code to move image from one position to another position without coming back.
View 2 Replies View RelatedI need to create dynamic UI. How can I add margin to the left side of the button.
newPost =new Button(BlogsList.this); newPost.setText("Add Entry To Blog"); newPost.setPadding(10, 10, 10, 10); newPost.setLayoutParams(new LayoutParams (LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT)); newPost.setOnClickListener(new NewPost(b.getName (),b.getBlogId())); l22.addView(newPost);
what is the difference between padding and margin?
i want to draw a view exactly at 200 dip from the top of the screen(0,0). there are some layout in the middle.
how do i draw a view exactly at 200 dip from the top?
I want to add an unknown number of ImageView views to my layout with margin. In xml, I can use layout_margin like this:
<ImageView android:layout_margin="5dip" android:src="@drawable/image" />
There is ImageView.setPadding(), but no ImageView.setMargin(). I think it's along the lines of ImageView.setLayoutParams(LayoutParams), but not sure what to feed into that.
Does anyone know?
Let me first state that I do not know Java. I'm a .NET developer with solid C# skills, but I'm actually attempting to learn Java and the Android SDK at the same time (I know it's probably not ideal, but oh well, I'm adventurous :)) That said, my end goal is to write a streaming media player for Android that can accept Windows Media streams. I'm okay with restricting myself to Android 2.0 and greater if I need to. My current device is a Motorola Droid running Android 2.0.1. There is one online radio service I listen to religiously on my PC that only offers Windows Media streaming, and I'd like to transcode the stream so my Android device can play it.
Is such a thing possible? If so, would it be feasible (i.e., would it be too CPU intensive and kill the battery)? Should I be looking into doing this with the NDK in native code instead of Java? I'm not opposed to writing some sort of service in between that runs on a desktop computer (even in C#), but ideally I'd like to explore purely device-based options first. Where should I start?
I keep hearing that Android applications should try to limit the number of objects created in order to reduce the workload on the garbage collector. It makes sense that you may not want to created massive numbers of objects to track on a limited memory footprint, for example on a traditional server application created 100,000 objects within a few seconds would not be unheard of.
The problem is how far should I take this? I've seen tons of examples of Android applications relying on static state in order supposedly "speed things up". Does increasing the number of instances that need to be garbage collected from dozens to hundreds really make that big of a difference? I can imagine changing my coding style to now created hundreds of thousands of objects like you might have on a full-blown Java-EE server but relying on a bunch of static state to (supposedly) reduce the number of objects to be garbage collected seems odd.
How much is it really necessary to change your coding style in order to create performance Android apps?
This is a recent install of the Android SDK. I just bought a Mac so even though I've previously done all my testing on a PC (and everything works fine there), I had to set up my mac for development. Installed latest version of Android SDK Installed Eclipse Helios and Android ADT. Now I really don't think this is a Helios or ADT issue since I can do all this without starting Eclipse at all using command line to start Emulator and using geo fix commands, and I get the same problem.
View 1 Replies View RelatedI have an element in the page that under certain circumstances has to get the margin-top increased. as the title says, the element is systematically rendered in the page via xml. Only in certain circumstances, and when that specific view is already rendered, I need to increase the margin. Is it possible at all? workaround?
View 5 Replies View RelatedI was wondering if it's possible to set an automatic/dynamic margin (padding?) between elements in an Android layout without having to do it programmatically?
For example let's say there is a horizontal LinearLayout which is set to android:layout_width="fill_parent" and that contains five elements. Is there a setting that evenly shares the remaining empty space of the LinearLayout to the margins of the child elements?
See image at http://img63.imageshack.us/img63/8/margin.png
Difference between View margin and padding , mPadding and mUserPadding?
View 2 Replies View RelatedI'm using a framelayout to position 2 buttons in the center of the screen. I'm anchoring from the center (using layout gravity = center_horizontal) then applying Layout margin left = 50dip and Layout margin right = 50dip to each button. In 2.2 the margins are being drawn much larger than the numbers I've declared (50dip/50dip). It looks more like 125 or 150. Oddly enough, this doesn't appear to be happening with margin bottom/top, only left/right. Is this a bug, or a sign that I'm doing something incorrectly?
View 11 Replies View RelatedI am using the following Layout for the titlebar with a blue backround color
ndroid:textColor, that I get a changed titlebar for my HelloWorlApp, that is fine. But somehow on the left and right side there is some margin and I still can see some Grey from the original titlebar.
What did I wrong?
I would like to know if there is any way of putting a margin in the top or bottom of the android screen.
I'm going to integrate a tablet in my car, but the dash is just a bit small in height than the tablet (not in width) so i need to reduce the height of the screen in about 3 or 4 mm. Is that possible???
After spending the better half of this day getting my HTC Magic to work in developer mode, I've now found that some of my frist openGL coding attempts that appeared to work fine in the emulator doesn't work as expected on the device. I've narrowed this down to glColorf(r, g, b, a) not working as expected on the device itself. The provided OpenGL samples do work though. So for example, after modifying Cube.java from the samples to the below code I find that I get the expected grey square on the emulator but a blank white screen (background fill colour) on the device.
class Cube { public Cube() { int one = 0x10000; int vertices[] = { -one, -one, -one, one, one, -one, one, one, };
// Buffers to be passed to gl*Pointer() functions // must be direct, i.e., they must be placed on the // native heap where the garbage collector cannot // move them. // // Buffers with multi-byte datatypes (e.g., short, int, float) // must have their byte order set to native order
ByteBuffer vbb = ByteBuffer.allocateDirect(vertices.length*4); vbb.order(ByteOrder.nativeOrder()); mVertexBuffer = vbb.asIntBuffer(); mVertexBuffer.put(vertices); mVertexBuffer.position(0); }
public void draw(GL10 gl) { gl.glFrontFace(GL10.GL_CW); gl.glVertexPointer(2, gl.GL_FIXED, 0, mVertexBuffer); gl.glColor4f(0.5f, 0.5f, 0.5f, 0.5f); gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 0, 4); }
private IntBuffer mVertexBuffer;
I want to clear sd card memory via android coding.
View 1 Replies View RelatedThere seems to be a default inner border in the WebView - it's about 6 pixels all round. How can this be removed so the size matches the content?
Simple demo (target is Google API 1.6):
CODE:............
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?
View 1 Replies View RelatedI need to create a GUI (layout+views) in my .java activity class (I know it's far more flexible and easier to use .xml layout file, but I don't want to use it for now).
I can't find any setGravity() (but a "Gravity" object I can't figure how to use) or any set setMargin() method for the "View" object. What is the easiest way to do it?
I have a webview and i wanted it to occupy the whole screen but it seems to have 7-8pix margin on the right side which is being used to display the scroll bar.
Is there anyway I can remove that margin but still display the scroll bars? I want it to do it in the way GMail app layout is done.
Here is the layout that I am using <?xml version="1.0" encoding="UTF-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/ android"android:orientation="vertical" android:layout_width="fill_parent"android:layout_height="fill_parent"><WebView android:id="@+id/web_view"android:layout_width="fill_parent"android:layout_height="fill_parent"/> </LinearLayout>
I have tried setting the layout_marginRight="-8dip" but that is a hackish way and also takes the scrollbars off the screen making them invisible.
After some search, even in the WebView and related classes source code, I could not find where the built-in 8-pixel inner margin of a WebView is set. I would like to display a WebView with no inner margin: is it feasible, please? Or am I missing something and there is no top and left inner margin inside a WebView?
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