Android :: Using Phone Camera Via Intent / Activity Never Returns?
Oct 18, 2010
I'm using the phone's camera in an Android app to take a photo. I'm using Intents to use the built-in camera application.It works fine and the camera is brought up. I can take a photo and the phone presents me with three options: Cancel, Retake, OK. The first two work, pressing cancel returns the user to the app, but pressing OK and nothing happens. Apparently onActivityResult isn't being called, and the camera just stays on the screen. Nothing in the debugger either.Running the app on a Nexus One with Android 2.2.1. Same problem on the emulator running Android 2.0.
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Mar 27, 2012
I have an android application which contains multiple activities. In one of them I'm using a button which will call the device camera :
Code:
public void onClick(View view) {
Intent photoIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(photoIntent, IMAGE_CAPTURE);[code]....
The problem is that the intent data is null and the OnActivityResult method turns directly to the (resultCode == RESULT_CANCELED) and the application returns to the previous avtivity.How can I fix this issue and after calling the camera, the application returns to the current activity which contains an ImageView which will contains the picture taken?
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Jun 17, 2010
I am having a problem where in the started Intent, the findViewById returns null. Is there anything special I should know about starting a new intent? It goes something like this for me:
//in the MainList class
Intent stuffList = new Intent(this, StuffList.class);
then in the new Stuff's constructor:...............
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Apr 7, 2010
Can someone tell if why when starting an activity with startActivity(intent) , calling getParent() in onCreate() of the new created activity returns a nul ?
Also how could I obtain the parent of an activity created in such a way ? Can a reference of the activity below the current activity in the activity stack be obtained ?
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Aug 30, 2012
I am developing am app to take photos and Video and then email the file to the user. The app works fine for photos on the phone and simulator. And works fine for Video on the simulator, but when I try video on the phone it returns a null pointer on the line Uri u = data.getData(). The phone I have tried it on is the HTC.
ContentValues values = new ContentValues ();
values.put(MediaStore.Video.Media.MIME_TYPE, "video/3gp");
values.put(MediaStore.Video.Media.DESCRIPTION, "Video");
ImageUri = getContentResolver().insert (android.provider.MediaStore.Video.Media.EXTERNAL_CONTENT_URI, values);
[code]....
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Sep 29, 2010
I'm using the android SDK in Eclipse on Linux. I've used the code at itp.nyu.edu/~sve204/mobilemedia_spring10/androidCamera101.pdf to write an app to store an image captured through the camera onto SD card (there are various examples of this around). It works ok except that the image returned by the camera is not what's on the preview surface. Instead of getting the checkerboard image I expect, I get different versions of the android icon depending on which version of target I choose. If I render the image to an ImageView this is confirmed as it's the same as on the SD card.
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Jul 8, 2009
How can I save and load the scroll position of a listview that is destroyed/hidden/paused.
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Oct 17, 2010
My app works with pictures. It can take multiple pictures as an input, process them, and send them again to another app.
As a consequence, my main Activity has declared an intent filter on ACTION_SEND_MULTIPLE for image/* mimetypes and can result in issuing a new Intent with the same action and data type using Activity.startActivity(Intent).
Is there a way to exclude my own activity from the list of apps that is displayed to the user after the startActivity() call ?
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Apr 3, 2010
I'm having difficulties handling multiple instances of my root (main) activity for my application. My app in question has an intent filter in place to launch my application when opening an email attatchment from the "Email" app. My problem is if I launch my application first through the the android applications screen and then launch my application via opening the Email attachment it creates two instances of my root activity. steps: Launch root activity A, press home Open email attachment, intent filter triggers launches root activity A Is it possible when opening the Email attachment that when the OS tries to launch my application it detects there is already an instance of it running and use that or remove/clear that instance?
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Dec 8, 2009
I'd like to let the user take a picture using the camera, then use it in my app. Ideally I could use the built-in camera app via an intent for this.is the only reliable option to use the 192x256 memory-only image supplied by the camera intent? The following seems to not work:
1) Asking the camera intent to write a 'full size' image to disk.
2) Writing your own camera app (issues on different devices etc).
The Facebook app seems to use the memory-only 192x256 option, probably because that's the only safe option. Anyone else have different opinions / experiences?
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Oct 7, 2010
I can't find any intent which opens the camera. The closest I've found is ACTION_CAMERA_BUTTON but that breaks if the phone has no hardware button for the camera.
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Jul 16, 2010
first of all: yes, I read all the other threads on this topic. And not only those from this site... (you see, i'm a little frustrated) Most of them come with the advice to use "android:id" instead of just "id" in the xml file. I did. From others, i learned, that View.findViewById works different than Activity.findViewById. I handled that, too.
in my location_layout.xml i use
<FrameLayout .... >
<some.package.MyCustomView ... />
<LinearLayout ... >
<TextView ...
android:id="@+id/txtLat" />.................
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Sep 20, 2010
I am writing a very small app that just opens the camera app ready for video. I am able to get my code to work on an Android 2.2 emulator, but it will not work on my device, Motorola Droid 1 stock 2.2 FRG22D. Any ideas where I went wrong on this code?
CODE:............
It appears ThorstenW is correct. I would upvote your answer if I had enough rep. You can see from the logcat that com.android.camera could not be found and throws a fatal exception. Logcat below.
CODE:...................
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Nov 2, 2010
Is it possible to get the Activity from an Intent?
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Jul 15, 2009
Wine by the Bar app (free in Android Market) is crashing on the HTC Magic.What intent settings/extras are needed to successfully launch ACTION_IMAGE_CAPTURE on HTC Magic?intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);App works fine on G1.Also need proper intent for choosing an picture already on the phone, and a cropping intent.
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Oct 14, 2010
I'm switching between different Activities using Intents. For one Activity, I would like it to clear the history stack so when the user presses the back button, it takes them Home instead of previous activities in my application.
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Jun 9, 2009
I've searched for a few hours for a solution to this, so hopefully this isn't a repost I'm setting a shortcut on the Home screen which raises an Intent to my application - the problem is that I don't want to show my app, just run a little code and display a Toast notification. This must be possible - I just can't work out how.. Once I'm handling the shortcut Intent in onCreate() the UI has initialised and I get a little screen flicker if I then run my code and finish().
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Aug 24, 2009
I have a service that is downloading a file. When the download is done, I would like to update my "Downloaded files" list in my Activity, but only if the Activity is running. I do not want the Activity to start if it's not already running. I was hoping I could do this by making a new Intent with some special flag. Anyone have any idea how I can achieve this? A tiny code example maybe?
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Jan 2, 2010
I have three classes one main-activity(named MainMap), one non-activity class(named MyItemizedOverlay), and one activity class(named AudioStream). I want to start AudioStream activity from non-activity class but i don't know how to.
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May 27, 2010
I am relatively new to android. I have two applications A and B. I have an activity in A, lets name it x, that would launch the application B. Now the intent sent by x contains StringExtra that I want the Starting activity in B to use. Is there a way for the activity in B to do that?
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Jul 6, 2010
I need to start an Activity with two different Intent, can I define two Intents In an Activity node?
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Sep 1, 2010
I want to pass a value from one Activity to another to update an integer. So basically I want Activity2 to send Activity1 a value it has garnered from user input. Seems like it should be simple just not sure how. Is it possible to run a function from another Activity and give it this value as an argument?
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Mar 3, 2009
I am trying to take picture by G1 camera.
I have tried almost everything i was able to find on the net about this topic. It seams there should be intent with action "android.media.action.IMAGE_CAPTURE" which really starts camera application and returns captured image. But captured image is scaled to 0.25 of original size. Another possibility I have found is to pass uri where to save captured image. I went through all available sources of camera application and it should work but does not.
For illustration, I am doing following in my example activity which creates new image, but after returning from camera, image is still empty:
CODE:..................
I am ready to write my own capturing application, but it is quite hard and I would like to reuse.
Do you know correct intent action name and extra name to pass to capture image?
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Jul 28, 2009
My application has buttons to launch gallery and video camera apps but the below code only seems to work on phones with the standard Cupcake build:
// For Gallery Intent intent = new Intent(); intent.setClassName("com.android.camera", "com.android.camera.GalleryPicker");
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); mContext.startActivity(intent);
// For Video Camera Intent intent = new Intent(); intent.setClassName("com.android.camera", "com.android.camera.VideoCamera"); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); mContext.startActivity(intent);
On rooted / non-cupcake phones, I get this error:
android.content.ActivityNotFoundException: Unable to find explicit activity class {com.android.camera/com.android.camera.VideoCamera};
have you declared this activity in your AndroidManifest.xml? at android.app.Instrumentation.checkStartActivityResult (Instrumentation.java:1480) at android.app.Instrumentation.execStartActivity(Instrumentation.java: 1454) at android.app.Activity.startActivityForResult(Activity.java:2656) at android.app.Activity.startActivity(Activity.java:2700)
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Aug 31, 2009
We have an Activity which has a form on it and we launch an Intent to take a picture.We've overridden onSaveInstanceState and onRestoreInstanceState to push the data from the view fields But, on the return from the CameraActivity, the onRestoreInstanceState method is never called. Should this behavior work when calling another Intent?
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Nov 6, 2010
I have a server running that notifies the user with a statusbar notification that opens my main activity, how can I pass data to my activity trough that intent?
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Aug 2, 2010
In the Activity I write Intent i=new Intent("IntentServiceTest"); Bundle bundle = new Bundle(); bundle.putString("abc", "def"); i.putExtra("wer", bundle); IntentTest.this.startService(i); Start Service into Service OnCreate method,but I don't know how to do get this Intent in this method.
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Apr 10, 2009
In my Android application, I have two activity classes. I have a button on the first one and I want to show the second when it is clicked, but I get an error.
Here are the classes:
CODE:...........
The second class that should show when the button is clicked, but never does:
CODE:........
How do I create a button that will show the second activity?
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Sep 30, 2010
Android will call onCreate() of my activity whenever it is launched.
In the onCreate() of my activity can I tell what intent launches my activity?
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Oct 6, 2010
I want to have an image open from a URL to an intent, most likely the browser or maybe a picture previewer like the one built into twidroyd.I've gotten plain URLs to open to the browser. I just can't figure out what action or category to specify,
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