I want to draw a picture (bmp,jpg,png) into the canvas (using the onDraw() method) of a class that extends the View class. I would like to be able to draw parts of the picture, not the whole at once.
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In 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);.............
How do i get peoples facebook picture to show up as their picture in my contacts. Right now my facebook picture shows up as Me, but none of the others are showing up. I even changed all my contact names to match the facebook page.
View 19 Replies View RelatedI use the backgrounds app, and it lets me save backgrounds to my SD card. I go into Astro/ sdcard/ backgrounds and then click on the picture. It gives me 2 options to open it. "ASTRO Image Viewer" and "View picture". For me to use it as a background I have to pull it up in "View picture", BUT....no matter how many times I try and pull it up that way, it shows me the first picture in my camera album. If I click "ASTRO Image Viewer", I can always see the picture I selected, but under menu, I only have the option to "share" and nothing else. Can you tell me why the selected picture won't show up in "View picture"?
View 1 Replies View RelatedCan anybody tell me or send me some links if there is any..which tells how Google map draw on canvas in android. what is the logic behind that.
View 1 Replies View RelatedI have two OverlayItem's on a MapView. How can I draw a route between the two geopoints?
View 2 Replies View RelatedCurrent the Google map display US as default.
I want to display India as default on the map.
How can i do this?
I want to draw an image that on some levels may be larger than the screen as the background for a Android game. I want the user to be able to scroll the image using their finger on the touch screen.
Here is how I am drawing the background code...
Can some one show me the sample code to draw a rectangular pulse in android screen. I want to generate a bunch of them on x axis (which I imagine as middle of screen).
View 3 Replies View RelatedI currently have a game written using the Android canvas. It is completely 2D, and I draw bitmaps as sprites on the canvas, and it technically works, but I have a few features that I need to add that will require drawing many more bitmaps on the screen, and there will be a lot more movement.
The app needs more power.
What is the best way to go from this method of drawing Bitmaps on a canvas to using OpenGL so I can draw them faster?
Is there a way to draw a circular gradient mask on a bitmap in Android? Trying to produce something similar to a foggy window. Click the window and a transparent circle shows up revealing whats behind the window. Prefferably using a gradient so the center of the circle is completely transparent and the further out from the center the less transparent. Is this possible?
View 1 Replies View RelatedI posted this question sort of embedded in the "show us your Droid X screen" but I think it got buried with all the "what is that widget?" questions.I see on some screens the picture widget picture is big. Mine is only about 1 inch by 1/2 inch.I can barely even get 1/2 a face in the picture.How do you get a bigger picture?I'm running LauncherPro, is that effecting it?Since I couldn't get a bigger picture, I decided to try and add the slide show widget. But when I try, it says Widget Conflict only one photo slideshow per home screen. I don't have any other slideshow widgets on my screen. Any ideas?
View 2 Replies View RelatedI 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 there a way to get a contacts picture to show their facebook picture in timescape. I have linked all my contacts with their facebook accounts but it still shows the default white picture. I dont want to have to go through and take pictures of all my contacts. that would just be silly.Apologies if this has been asked before or is a simple fix. I'm new to this smart phone malarchy
View 4 Replies View Relatedis it possible to have the Facebook profile picture of my friends be the picture displayed on my contacts? or do I absolutely need to upload a picture for every contact individually?
View 2 Replies View RelatedIf I have an instance of a Picture object (android.graphics.Picture), how can I crop out a section of the Picture object (0, 0, 100, 100) (x, y, w, h)?
View 2 Replies View RelatedI'm using a droid and am having problems with receiving picture messages that are the size of a penny! i can send full size pictures but when i receive them, it is sooo small. and when i stretch it out, it looks all blurry.
View 9 Replies View RelatedI'm running into an issue with my program when trying to crop an image selected by the user from their gallery. The issue so far only appears when running on a Droid X, as running on the original moto Droid works fine.
Basically the issue occurs as the cropping intent is being run. Once the user crops the photo and clicks the save button, it replaces the wallpaper on the main screen with the cropped image that was saved! It does not do this on the moto droid, or emulators. Below is the code for cropping and saving the picture to the SD card:
CODE:................
Just got around to trying the built in photo viewer in Droid accessed through gallery, Just tried free app 'picture viewer' and it's better, but still not great. Going to keep looking. What I am looking for is to flick through photos, which picture viewer does, but also being able to pan around pic if zoomed in. Also automatic search of SD card for folders with pictures.
View 20 Replies View RelatedI'm doing an application of showing picture with ImageView.I want to know how many kinds of picture are supported in Android, and what are they.Could anyone give a list of these files?
View 4 Replies View RelatedDoes anyone else have any android related link? if so post a pic!
View 8 Replies View RelatedI'm having a problem with Handcent on my Droid. It seems like only one or two of my contact's pictures have carried over to Handcent, so whenever I get a new message or I look in the app, it just has the generic picture with the question mark.
View 11 Replies View RelatedI'm trying to figure out how to draw on a bitmap in android, and keep a copy of these changed bitmaps for an undo function.
Bitmap b = ...
Paint p = new Paint();
canvas.drawBitmap(b, new Matrix(), null);
canvas.drawCircle(0,0,20,20);
//does Bitmap b have the circle drawn on it next time?
Or how do I get the bitmap after its been drawn on with the canvas(I want to preserve a stack of bitmaps with the changes applied by canvas drawing)? Maybe I'm going about this entirely wrong.
I'm new to openGL and I have done some first tests with drawing a triangle. Now I would like to draw a circle, which is filled with a texture, but I have no idea, how to do so.Can someone of you give me a hint?
View 5 Replies View RelatedI want to draw charts like pie charts to display stats in my Android app. As Android doesn't support Swing and AWT, i wonder how can i draw charts in Android? Please note that i don't want to use a third party tool.
View 6 Replies View RelatedI'm investigating the possiblity of writing an app for Android/iOS4/both that would use GPS in the background. I found the "Receiving Location Events in the Background" section of the iphone developer documentation, which recommends that I only register for "significant location change" events. I'm not aware of any such capability in the Android SDK, but it still seems like a good idea to do it this way if I can (so as not to drain the battery). My question is this: has anyone done any sort of benchmarking for this on and iPhone/Android phone? So far, I've seen a lot posts/documentation saying that listening for GPS events in the background is a VERY BAD THING and I should AVOID IT AT ALL COSTS, but I haven't been able to find any numbers for just how much power a background application listening on GPS changes would drain (i.e. % battery drain per time app is running in the background).
This information might be helpful for me (and possibly others too) because I might be able to poll less frequently or even register/unregister my GPS listener based on power drain. Essentially, I could try to put a ceiling on how much battery life my app could drain while in the background.
how to draw a line in android give example
View 1 Replies View RelatedI'm making an App that needs to be able to draw new graphics on top of the last set.
This is my current onDraw() method -
protected void onDraw(Canvas canvas) {
canvas.drawColor(Color.WHITE);
if(points.size() > 0) {
//do some stuff here - this is all working ok
canvas.drawLine(p1.x, p1.y, p2.x, p2.y, linePaint);
}
}
Basically, I need to draw the new graphics as a layer on top of the last, so what I'm looking for is a way to carry the image of the last canvas to the current. I have tried to figure it out myself using the canvas.setBitmap() method but it acts very funny.
I have some images that I want to put on top of each other on random order. If it possible using one ImageView or do I need to create multiple image views based on number of images?
View 2 Replies View RelatedI studied the Androidreference for hours now, but don't really get the clue how to draw something (Text, Bitmap, Path ....) on a ImageView.
Should I extend View and use the onDraw()-Method? If yes, how can I draw on my ImageView?
Or is there any other way to achieve my goal?