Android :: How To Draw Vertical Bar Graph?
Jul 20, 2010I am developing one statics application and i want to draw a vertical Bar Graph depending upon the value received from the server,so can anyone help me out.

I am developing one statics application and i want to draw a vertical Bar Graph depending upon the value received from the server,so can anyone help me out.
i want to draw a graph in a area and i used a linear layout as area.i want to set the size of the graph area,which should be compatible to small,medium ,default emulators etc.i need to set the size for graph area,how can i do it in xml file for eg in blackberry we use Display.getWidth();Similar is there way to get the width of the display either programmatically or in xml.To expand my area, i did like this, in below image (just added label,which gets an height)
View 1 Replies View RelatedI want to draw a straight vertical line on my Android activity, when a button is pressed. Please explain how I can draw the line with a position & length I want.I have a linear layout with vertical orientation. A set of buttons constitute this linear layout. When I press one button, I want a line to appear to the right of these buttons, like dividing the screen halfway - a straight line of width=2dip and height=200dip.
View 1 Replies View RelatedI have a Gridview, include hundred of items (thumbnail images). I set a multi-select mode, in this mode, user just need to swipe his finger to start selecting multiple items (this case, gridview can not be scrolled). And in a normal touch, Gridview still can vertically scroll for user to see other thumbnails and continue selecting.
View 2 Replies View RelatedIn my android application I use this method in "draw" Overlay class for draw route on map. Can someone tell me if this method is good (in terms of performance) for route draw on map or I must to put code in Thread ??
I'm new to android.
public synchronized void draw(Canvas canvas, MapView mapView, boolean shadow) {
if (pointsAndTimes.isEmpty()) {
return;
}
Projection projection = mapView.getProjection();
Paint paint = new Paint();
paint.setARGB(250, 255, 0, 0);.............
I want to display graph(time ver distance) in Activity , how should be this achieved in Android. is there any tut available?
View 5 Replies View RelatedI was wondering if there is any 3D scene graph toolkit available or at least in development for Android? I could not find anything, assuming that all existing solutions for Java won't run on the Android platform.
View 3 Replies View Relatedi have to create a dynamic graph in android.
View 2 Replies View RelatedWhy the time above the adroid bat graph and the one below are different. At this moment is says on my device 1h 28 minutes on battery. Below the graph 50m 22s is shown. What is the difference between those timers ?
View 2 Replies View RelatedI'm very new to the Android platform, but i was hoping to write a quick and neat little android app which will receive data from blue tooth and to graph the data. I'm trying to use a LM Technologies LM049 blue tooth adapter to send serial data to my HTC Dersire 2.1 android handset. At the moment i'm trying to just prove i can send ascii characters to the phone. Not quite sure where to begin.
View 2 Replies View RelatedI would like to do two things within my Android app: Check if the Google Finance app is installed on the device. Should be pretty straight forward, isn't it ? If yes, launch an intent to Open up Google Finance, displaying a graph on a particular Stock. So I also need to pass the stock ticker to Google Finance in some way... but is this even possible? Any other alternative I could use to display Stock Charts (let's say a 5 days intraday chart) on any stock?
View 2 Replies View RelatedI had a bunch of code in an activity that displays a running graph of some external data. As the activity code was getting kind of cluttered, I decided to extract this code and create a GraphView class:
public class GraphView extends LinearLayout {
public GraphView(Context context, AttributeSet attrs) {
super(context, attrs);
LayoutInflater inflater = (LayoutInflater)
context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
inflater.inflate(R.layout.graph_view, this, true);
}
public void start() {
// Perform initialization (bindings, timers, etc) here
}
public void stop() {
// Unbind, destroy timers, } }
Moving stuff into this new LinearLayout-derived class was simple. But there was some lifecycle management code associated with creating and destroying timers and event listeners used by this graph (I didn't want this thing polling in the background if the activity was paused, for example). Coming from a MS Windows background, I kind of expected to find overridable onCreate() and onDestroy() methods or something similar, but I haven't found anything of the sort in LinearLayout (or any of its inherited members). Having to leave all of this initialization code in the Activity, and then having to pass it into the view seemed like it defeated the original purpose of encapsulating all of this code into a reusable view. I ended up adding two additional public methods to my view: start() and stop(). I make these calls from the activity's onResume() and onPause() methods respectively. This seems to work, but it feels like I'm using duct tape here. Does anyone know how this is typically done?
I propose that we all post our battery life graph like the one I am about to post below. This way we can look at these claims in scrutiny, and perhaps figure out why it is that some people's Evos seem to last longer than others. Here is a graph of my Evo's Battery Charge over 1 day:
Wake up at 7:30am to disconnect the charger, listen to Pandora on the car to work until I arrive at 8am. Idles until lunch time at 12pm. Use the Evo to read up on some news at lunch until 1:30pm. Listen to Pandora while working until 5pm. Drive home while listening to Pandora in the car. Battery starts giving warning indications while driving, and phone dies when I get home at 6pm. Very usual day, and matches what the battery charge graph shows. The top apps of the day are:
System Processes contains mediaserver (2.4% due to Pandora), akmd (0.3% accelerometer polling), and everything else is <0.1%. As you can see I barely used my phone during the day for anything but Pandora. So based on my data, I'd say that the normal battery life for the Evo is under 10 hours. My settings are: no 4g, no wifi, no bluetooth, yes gps, yes bckgrnd data, auto brightness, no live wallpaper, yes taskmanager (ATK, set to "safe" setting. Will probably get rid of this..), no friend stream, no flickr.
I'd love to see other people post up their Battery Usage graphs as well. The App used is "SystemPanel App / Task Manager", available for free in the market. Go into Settings and allow it to Monitor. The screenshots were made by ShootMe, also available in the market.
Recently bought a Polaroid PMID701C tablet. I was looking for that battery consumption graph that is on most android phones/tablets. The one where it shows which apps and hardware are consuming the most power. i couldn't find it and gave up. until one day when a low battery warning appeared on the screen. usually i cancel it, but this one time i clicked OK and it brought me to the battery consumption graph i was looking for.
seems to be the only way i can access it. i understand that this tablet is entry level, but shouldn't i be able to get to this without having to wait for a low battery warning?
I'm on a rooted v2.3.4 phone.
The stock battery usage graph screen doesn't show any apps, only core Android elements like Phone Idle, WiFi, Display, etc.
It's not because apps didn't use enough CPU time.
No root..Firmware v. B104...New phone, got it in late December 2012. Handled with great care. Battery icon and battery graph stuck on 50%. Never know how much battery juice I've got left. No warnings, just powers off when it's empty.
Tried:
- Factory reset
- Attempted hard reset, but I'm not sure it worked, 'cause nothing special happened on my screen.
- Completely draining the battery (as an equivalent to removing the battery. Non-removable battery on this one)
I have been looking for firmware updates, but I can't find any for my B104, and if I have understood it correctly, applying an update for the B226 will most probably render my device useless.I am quite satisfied with this phone, it is magnificent, so I do not want to root it unless I absolutely have to. URL..
The Android weather genie widget has an awesome graph. I want to add it to my app.
But I can't figure out how they did it! (they aren't releasing the source code).
Where to find a nice polished graph like that I can drop into my app?
I want to have a elmenent with a 2 color border outline. I can do a single color outline using the element, but this only allows me to draw a single line. I tried using 2 elements within my but that didnt work either. Is there a way to either draw a shape within a shape or draw 2 lines around my shape (which has rounded corners btw).
View 3 Replies View RelatedIs it possible to have a vertical SeekBar? I would want this for a tilt control slider.
View 4 Replies View RelatedI want to display the text for some buttons vertically "down the screen" instead of horizontally. I don't want the orientation of the letters to change just the direction in which the letters are printed. Is there any way to achieve this, other than creatng a drawable that has the letters in this format and using it as a background? I guess I'd need to center the letters horizontally as well.
View 4 Replies View RelatedI know my original post (at http://groups.google.com/group/android-developers/browse_thread/threa..., I could not find a way to perform a reply, maybe it's too old) is not sexy, but I'm now facing that problem in many situations. Let me please rephrase what I attempt to do, and what my problem is.
I have a RelativeLayout made of three widgets (named 1, 2 and 3 on the illustrations below): one attached to its parent left border (labelled 1), one to its parent right border (labelled 2) and the third (labelled 3) inserted between the 2 previous ones (its left border is attached to the first widget right border, and its right border is attached to the second widget left border). The third widget (the middle/central one laballed "3") is far taller than the two others, and I would like the first and second items (1 and 2) to be vertically centered with the middle widget.
I have resorted to the "android:layout_centerVertical" attribute for both the first and second widget, but I do not get the expected result. See at the bottom the various layouts I'm mentionning. Could someone please help me, and tell me whether what I intend to do is feasible, and how? Thank you for your time.
Layout with no "android:layout_centerVertical" specified: ------- |1|3|2| --|3|-- |3| ---
Layout with "android:layout_centerVertical" set to "true":
--- |3| |3| |3| ------- |1| |2| --- ---
What I'd like: --- --|3|-- |1|3|2| --|3|-- ---
Eclipse doesn't seem to like the constant VERTICAL in the LinearLayout. Can you tell me what the problem might be. Here is a snippet of the code I have. I am using the latest Android SDK.
View 2 Replies View Relatedis it possible to have both Scrollbars together. My Application is too big for just one of them. I tried it with a ScrollView in a HorizontalScrollView Layout, but it supports only vertical or horizontal scrolling at the same time and not crosswise. It would be nice to have a scrolling just like in the Browser of Android. Is this possible?
View 4 Replies View RelatedI have two splash screens for my android app one for horizontal and second for vertical and also have two xml layout file like h_splash.xml and second is v_splash. and i want to show these file like this in my code if(horizontal or event which for horizontal ) { setContentView(R.layout.h_splash) }
View 7 Replies View RelatedI'm really tired looking for a solution for Scrollview vertical and horizontal. I read that the any view/layout implements this feature in the framework but i need something like this. I need to define a layout within other, the child layout must implement scrolling vertical/horizontal for moving. Initially implemented a code that move the layout pixel by pixel, but i think that is not the right way. I tried with ScrollView and HorizontalScrollView but any ones work like i want, because only implement vertical or horizontal scrolling.
View 3 Replies View RelatedI am trying to use a ProgressBar as a metering like display. I thought it was going to be an easy task and thought that ProgressBar had a property to set to be vertical, but I'm not seeing anything. Additionally I'd like to be able to show ruler like indicator along the side of the bar to clearly indicate the current level.
View 1 Replies View RelatedKind of an newbie question, I suppose -- I haven't done much playing with layouts yet I want a spacer in a layout to space some text down below the "live" part of a background image.
View 10 Replies View RelatedHow do I make sure my app is only for vertical layout? I added this android:screenOrientation="portrait" but that doesn't seem to do the trick.
View 5 Replies View RelatedHow do you detect a horizontal or vertical finger swipe?
View 3 Replies View Relatedi am adding scaling image (size 800 x 800) to Scroll layout but this image does not scroll vertical or horizontal.
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