I would like to display some UI Elements on a android xml layout file. I try to make an application, where two players can sit at each end of the mobile device, and play against each other.
So need to show some Button 180 degrees rotateted.
Is this possible? I tried android:gravity, but this did not work.
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When I have a ListActivity and an Adapter how does Android handle a list with 200 elements.
Does it try to load all of them directly how does it wait till the user scrolls and then renders those elements?
Do I have to worry with performance when a list is too long?
I am making a time sheet program where a user inputs his in- and out-punches. I have a ListView that I am populating from an array of calendar objects. I would like each row to show the day and date then on a new line the time, but I only want to display the day and date if it is different from the previous element.Currently, I am setting visibility in the Base Adapter based on comparisons using position vs position-1 (which are used as indices to the array). This only works if the whole list fits on the screen. If it extends beyond the screen and the user scrolls around the results are unpredictable.To further confuse things, I am setting the color of the times, based on the position, to alternate between green and red (in/out) and it works as expected, scrolling or not.How does Android handle the ListView position when scrolling or what could I do differently to show/hide the day and date? Code...
View 2 Replies View RelatedI apologize if this code looks a bit like a mess (considering the length); I figured I'd just include everything that goes on in my program at the moment.
I'm attempting to create a fairly simple Tic Tac Toe app for Android. I've set up my UI nicely so far so that there are a "grid" of TextViews. As a sort of "debug" right now, I have it so that when one clicks on a TextView, it should display the value of buttonId in a message box. Right now, it displays the correct assigned value for the first element I click, but no matter what I click afterwards, it always just displays the first value buttonID had. I attempted to debug it but couldn't exactly find a point where it would pull the old value (to the best of my knowledge, it reassigned the value).
There's a good possibility I'm missing something small, because this is my first Android project (of any note). Can someone help get different values of buttonId to appear or point out the error in my logic? The code...
Are there any 3rd party apps out there that rotate the screen 180 degrees? I can't seem to find any.Most times, I find it easier to use my Cliq if it is upside down (such as listening to music and charging.)
View 2 Replies View RelatedIs there a way to include the small circular degrees symbol to a Text View? This would be for temperature readings, as in degrees Celsius or Fahrenheit. I'm finding this an awkward question to Google, and wondering if anyone has done this program apically before.
View 1 Replies View RelatedI'm working on an application that will randomly point an arrow in a direction, and have that arrow maintain it's direction if the device is moved. All I want to do it get the magnetic field readings as degrees and I can do it from there. The problem I'm having is getting the magnetic field readings. I can't find any tutorials on it and the API demo on google's dev site uses deprecated code (figures, google's sample code is never n00b friendly).
At this point I've got this together but I don't know what I'm missing, all the examples I can find are using SensorListener which has onSensorChanged(int sensor, float[] values) but SensorEventListener does not support "float[] values"
Does anyone know how to convert the accelerometer readings from g's to degrees?For example, if I want to use the x-axis readings and measure the tilt of the phone, flat would be 0g = 0 degrees and a 90 degree tilt to the right would be 1g (9.80665 m/sec^2).I can't come up with a formula for say 20 degrees or 45 degrees. Any help would be greatly appreciated.
View 2 Replies View RelatedHow to rotate control (checkbox) in 180 or 90 degrees ?
View 1 Replies View RelatedI have a database with coordinates in Degrees Minutes Seconds format, is there any way to change them to decimal coordinates using Android built in function or is there any simpler way to show such coordinates in a mapview ?
View 1 Replies View RelatedMy eve was running at 56 degrees celsius in my house earlier today. Wtf? I found out with juice plotter.The phone was at idle and i picked up to send out a text and and it was really warm to the touch.I took out the battery for an hour or so. It's been back on for a few hours now and its at thirty six celsius.Any suggestions ?
View 5 Replies View RelatedPlease link me to any website from where I can see the 360 Degrees View of Samsung Vibrant?
View 2 Replies View RelatedWhen I turn it upside down it stays the same?
View 6 Replies View RelatedI want to show an arrow that indicates the direction towards a goal, using the orientation sensor and current GPS position. Everything works well, except that I want to rotate the arrow image in my ImageView.
View 2 Replies View RelatedI need to put some text over an imageview.
CODE:..........
But this doesnt displays the text only the picture. And also I have to rotated this text. Is this even possible with TextView?
I thought this thing had an accelerometer in it? It only goes from portrait to landscape instead of 360 degrees depending on when you turn it like my Pre? When holding the phone in your right hand and it is connected to the charger and on the net the damn cord gets in the way. Am i missing something here? You have got to be kidding me if there is no way to change this?
View 15 Replies View RelatedWhen camera is launched in portrait mode, the viewfinder screen is 90 degrees rotated and stretched out. I read couple of places that this is a known bug with sdk1 but i am still finding this problem with cupcake. Has anyone having any idea is this issue is fixed in cupcake or in donut? any clues how to move ahead. setOrientation and changing the preview size didn't help. Even I read somewhere Surface flinger class needs change: http://groups.google.com/group/android-framework/browse_thread/thread...
View 3 Replies View RelatedI am having trouble finding information related to which i should choose, OpenGL ES 1.1 or 2.0 for 2D graphics.
OpenGL ES 1.1 on Android is a bit limited to my knowledge, and based purely on sprite count the only useful renderer is draw_texture() (as far as i know). However, that does not have rotation and rotation is very important to me.
Now with the NDK adding support for OpenGL ES 2.0, i am trying to figure out if there is anything that preforms as well as draw_texture(), but can handle rotation.
Anyone have any information on if 2.0?
I am using the code from ApiDemo Camera Preview and it runs fine on my Gphone but the preview is rotated and stretched.
View 8 Replies View RelatedCyanogen 5.0.5.6 with bekit 1ghz running at 40 degrees. Is this a bad combination? I'm constantly at 40 degrees. If not there, usually upper 30s. I'm hearing people are often in low 20s with their ROMs. What's the deal? I don't even play games that much, nor do I browse intense websites. Would you suggest a different kernel?
View 6 Replies View RelatedMy g-sensor is working but is shifted for 90 degrees. So when my tablet is in landscape, screen is in portrait and vice cersa.How to calibrate it? I am having JB 4.2.2.
View 4 Replies View RelatedI would like to know as to what will happen to the thread which has been created by an activity and the device is rotated. I have observed that the onDestroy method is called when this happens. Will the thread be killed too?If the thread is not killed, how can I reassociate the thread with the activity as a new instance of the activity is created on rotation.
View 1 Replies View RelatedI am getting a crash intermittently when my Activity starts up either initially or when the screen gets rotated I get several log messages which I have been unable to get any insight from: timeout expired mFreezeDisplay=1 mFreezeCount=0 App freeze timeout expired Force clearing freeze then lots of: Lock_layer timed out (is the CPU pegged?) Key dispatching timed out then I get ANR annotation: keyDispatchingTimedOut the trace has alot of sending signal 3 to alot of PIDs
View 2 Replies View RelatedI am finding that performance degrades after one or more screen rotations, and I presume that this is likely to be because an App's main Activity is destroyed and recreated each time the screen is rotated and that my app must be leaking memory when that happens.I have read that, contrary to what one might expect, not all the objects created by an app's main Activity (or in classes called by that Activity) are destroyed when the activity is destroyed. Specifically, I think I have read (although I can't now find where) that if the View uses a large bitmap member object then the Activity's onDestroy() method should be over-ridden and the bitmap should be explicitly recycled.Are there other objects that need to be destroyed or removed when the Activity is destroyed? What about Listeners? Is there a comprehensive tutorial or guide on this subject?
View 1 Replies View RelatedI am using the MapsDemo example for a mapping application where I rotate the map in direction of travel. This works well even without the canvas smoothing in the example.
However, I haven't yet managed to adjust the dispatchTouchEvent code to counter the map rotation effect for the user touches (right now when the map is rotated 90 degrees a user's horizontal sweep will move the map vertically etc). The sample code only offers the teaser:
CODE:..........
And while I am at it - Is it still possible to position the zoom controls separately, so that they do NOT rotate when the map rotates? I read that the getZoomControls() is deprecated.
I have tried to freeze orientation: setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
But thought screen stays in portrait orientation, the activity is still recreated.
I have a ListView that can have one or more clickable items. When I apply a rotate animation the coordinates that are clicked correspond to the original position of the ListView items. For example a list with one item in portrait mode rotated 180 degrees will have the item upside down on the bottom of the screen, but the item gets the click event when I click the top of the screen. 180 degrees is just an example I want to be able to move an arbitrary angle.
I've looked through all the listView properties but none seem to have any effect on the clickable coordinates. I would assume willChangeTransformationMatrix would do the trick but it doesn't, neither does invalidate or invalidateViews. Is there a property I'm overlooking or how would I go about moving the coordinates to the right place?
sample code- list items highlight correctly when clicked, rotate with dpad_center, after rotated items highlight when original position is clicked. I've tried animating the animation, animationSet, and layoutAnimationController all same result.
CODE:...............
When I load an image frome the media gallery into a Bitmap, everything works fine, except that pictures that were shot with the camera while holding the phone vertically, are rotated so that I always get a horizontal picture even though it appears vertical in the gallery. how can I load it correctly?
View 3 Replies View RelatedThis one surely is a simple one but I haven't made sense of is yet. I'm working on an app in opengl es on android. everything goes well except when I load the textures. I manage to open load and create all the textures without any problem, but the image displays itself rotated of 90. it looks as if the application does not consider that its is in landscape when opening the image...I solved the problem by turning all my textures of 90 degrees but I would sure like to figure this one out Because it is the only thing that is not rotated, the top bar is rotated, the touch coordinated are rotated,
the h and w of the surface are good,
Here are some code snippets that I think are relevant:
CODE:...........
I have a very simple widget application which consists of a linear layout with a background and an image button. In the AppWidgetProvider on Update method, I register the click of the button to broadcast an intent. When the widget first loads, everything runs fine and the click is captured. The problem occurs when the screen is rotated, and the click is never captured again even if the screen is rotated back. What do I have to do to re-register the click when the screen rotates? below is some segments of code I am using.
AppWidgetProvider
@Override
public void on Receive(Context context, Intent intent)
{super.on Receive(context, intent);
if(intent.getAction().equals("test.CLICK"))
{Closemouthed(context);}}
@Override
public void on Update(Context context, AppWidgetManager appWidgetManager,int[] appWidgetIds)final int N = appWidgetIds.length;
// Perform this loop procedure for each App Widget that belongs to this provider for (int i=0; i<N; i++) {
int appWidgetId = appWidgetIds[i]; RemoteViews views=new RemoteViews(context.getPackageName(), R.layout.widget);
Intent click intent=new Intent("test.CLICK");
Pending Intent pendingIntentClick=Pending Intent.getBroadcast(context, 0, click intent, Pending Intent.FLAG_UPDATE_CURRENT);
views.setOnClickPendingIntent(R.id.change_mode, pendingIntentClick);
SetInitialLayout(context);
appWidgetManager.updateAppWidget(appWidgetId, views);}
super.on Update(context, appWidgetManager, appWidgetIds);}
Manifest
<receiver android:name=".Widget" android:label="@string/widget_name">
<intent-filter>
<action android:name="android.appwidget.action.ACTION_APPWIDGET_CONFIGURE" />
<action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
<action android:name="test.CLICK" />
</intent-filter>
<meta-data android:name="android.appwidget.provider" android:resource="@xml/widget_mode_switcher" />
</receiver