Develop Reference

It is necessary to create an camera to put it inside an fragment (android)?

I just need to put a camera inside one of the three fragments of my main activity, like ([f]-[f]-[C]), where () is my main activity, [] is a fragment, C is the camera and f are just a fragment (they are full screen swipable). I need to create a whole camera (coding , etc) just for it or it is possible to call android native camera app with intent to an fagment?

I need to create a whole camera (coding , etc) just for it
Yes, whether you write it yourself or use one from a library.
or it is possible to call android native camera app with intent to an fagment?
No, you cannot embed a third-party app in a fragment of your app.

If you need to take a picture, you can just use an intent to launch the system camera app. Doing so will make it a lot easier to code, but you won't be able to show a live preview, as you're actually handling control to the camera app through that intent.
Manually handling the entire camera lifecycle allows you to have control over the preview and show it real-time in your app. Also, if you need to have the live preview in your app, this is the way to go and can't be accomplished using just an Intent.
You might find the UltimateAndroidCameraGuide on GitHub very helpful for your problem, particularly the SimpleCameraIntentFragment and the NativeCameraFragment files in that repo.

You can use an Intent to launch the camara and it will launch the camara default app., just be careful to detect when your "C" fragment is displayed, here: How to determine when Fragment becomes visible in ViewPager
If you dont do that, android pre-caches fragment before showing it and your intent will fire.
On your activity use:
#Override public void onResume() {
super.onResume();
if(viewPager.getCurrentItem() == 2){
//Your code here. Executed when fragment is seen by user.
// create Intent to take a picture and return control to the calling application
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE); // create a file to save the image
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri); // set the image file name
// start the image capture Intent
startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);
}
}
See for camera launch with intent options: http://developer.android.com/guide/topics/media/camera.html#intent-image

Show Intent.ACTION_PICK in landscape

I am working on an app which let users choose photo from their gallery. The problem is I need to show the gallery in landscape only. Is it possible to do it?
I use this code:
Intent galleryIntent = new Intent(Intent.ACTION_PICK,MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(galleryIntent, RQC_GALLERY);

When you start any activity using explicit intent, you loose control from your application. Android finds out and application to perform that is described in intent object.
Intent object attributes details
From no where you can have control on next application regarding view.
If you want to fulfill specific requirement than make your own activity with Grid view and use image adapter to set images.
Here is one link which shows how to set images in adapter. It will help to design your code if necessary.

Camera or Gallery intent destroys old activity on some devices

I am working on app which uses WebView to display its content. However, it needs to open camera or gallery in order to choose picture:
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, 1);
Intent galleryIntent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(galleryIntent, 2);
It's working fine on most devices, but on HTC One and few others both intents destroys my activity, so webview is being reloaded while going back. I don't have noHistory flag in AndroidManifest.xml. What might be causing that issue? Can I avoid destroying my activity here?

It is normally, that Android kills your Activity when other app runs.
You must save Activity state in onSaveInstanceState and when activity will be recreated restore state in onRestoreInstanceState or in onCreate.
To restore state of WebView you may use cookies and sessions and save last opened url. When activity will be recreated just navigate WebView last saved url and process result from camera.

Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, 1);
By seeing your code I can judge that your motto is to capture the image and use it later on.
This is a known bug, The solution is that you need to create a separate folder for your application and before capturing you need to be sure that file is created and the same path you are giving to camera intent
Uri uriSavedImage=Uri.fromFile(new File("/sdcard/seperate/newImage.png"));
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
cameraIntent.putExtra("output", uriSavedImage);
startActivityForResult(cameraIntent, 1);
Reference: image from camera intent issue in android

Maybe a stupid sugestion.
But since it's destroyed, it means the device was low on memory.
If the only annoyance is that the webview reloads, maybe you can solve this by caching the content?
For example in the onStop() method of you activity get the content of the webview and store it somewhere. temporary file, sqlite,... . and in onCreate check if there is a cache (and maybe how old it is) and if needed put that in the webview.
Tutorial to get html code from webview: http://lexandera.com/2009/01/extracting-html-from-a-webview/

If i m not wrong you are opening camera from device.Have you check that other app is not aquired the camera? you must acquire camera before starting camera activity may be some other app using camera instance.You must release the camera instance in on destroy or onstop method of activity so that next time it will available fr other app to use it or for your app to use.

How to force camera by intent to take picture automatically in Android

i am creating an application.
and use device default camera to take picture.
using this
Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
startActivityForResult(intent, CAMERA_PICTURE);
in onActivityResult() method i call again above code and take picture again.
but i want to take multiple pictures at a time. is there any way to take picture automatically when camera is called by intent (not by creating custom camera activity).

By sending intent you just say to existing camera application that it start and allow user to take picture - you are completely on the mercy of this application. Some of them may contain some undocumented parameters allowing you to snap picture automcatically.
http://developer.android.com/guide/topics/media/camera.html#intent-image
If you like to have control, you shall code camera application yourself.

I suppose you have to write your own custom camera, as there is no extra in MediaStore class that would allow taking another picutre.

Initiate Camera Intent with the Gallery Icon

I am working on an app that accesses the camera and returns an uri, which I pass to another activity and display the extracted bitmap in an ImageView. Everything seems to work fine. Here is the code that I use to initiate the camera intent.
mCameraButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mCameraUri = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, new ContentValues());
Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, mCameraUri);
mtimeCameraAcessed = System.currentTimeMillis();
startActivityForResult(cameraIntent, RECEIVE_CAMERA_PICTURE);
overridePendingTransition(R.anim.slide_in_right, R.anim.slide_out_left);
}
});
But, I have noticed a discrepancy. When my application access the camera, the gallery icon at the bottom of the screen seems to be missing (the icon appears when you access the camera application on any android phone). I have attached a couple of screenshots to illustrate this.
I want the user to access the camera while being able to change his/her mind and then access the gallery on the same screen (by tapping the gallery icon). Now, I do know how to initiate a gallery intent via 'Intent.ACTION_PICK'. I have also looked at the this question, but I don't completely agree that I need a custom camera layout to achieve what I intend to do: Single intent to let user take picture OR pick image from gallery in Android
The reason I say this is because, I have seen apps such as QuickPic that access the camera application with the gallery icon at the bottom. Can anyone please throw some light on this?

After going through some thorough research, I have come to a conclusion that this is infact impossible. However, a custom layout combined with the camera api would be the ideal solution if something like this is desired. But then, I have observed that using the camera api has certain problems such as skewed appearance of the camera screen.
QuickPic takes the user to the camera screen (with the gallery icon) but drops him/her out of the app while doing so. At that point, the user is basically using the stock camera app on Android and not the Quickpic app itself.