Develop Reference

Preselected 'all' by default in android.Intent gallery with multiple selection

please help
how can i do preselection all for user in a native android gallery ?
here is a code
Intent galleryIntent = new Intent(Intent.ACTION_GET_CONTENT);
galleryIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
galleryIntent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, multiple);
galleryIntent.addCategory(Intent.CATEGORY_OPENABLE);
final Intent chooserIntent = Intent.createChooser(galleryIntent, "Pick an image");
activity.startActivityForResult(chooserIntent, IMAGE_PICKER_REQUEST);
its working fine, but initial stage 0 files are selected
thanks

There is no means of pre-selecting anything when using ACTION_GET_CONTENT, let alone pre-selecting everything.
Also note that ACTION_GET_CONTENT is not tied to a gallery app, and there is no single "native Android gallery" app across the ~10,000 Android device models.

Xiaomi MI device not picking image from Gallery

I have a very weird issue. I am picking an image from a gallery the code is working properly on all the devices like Nokia 6 , One Plus X. When it
comes to xiaomi devices the image is not getting set on ImageView .
Can anyone help me out on how to fix this issue ?
I have to pick multiple images.
Code to pick image from gallery
Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.INTERNAL_CONTENT_URI);
intent.setType("image/*");
intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
startActivityForResult(Intent.createChooser(intent, "Select File"), SELECT_FILE);

Remove multiple images selection if you are selecting then you need to resolve it by Cursor in a new String array.
and also add these two lines in your code:
android:hardwareAccelerated="false"
android:largeHeap="true"

Intent.ACTION_PICK behaves differently

I am using following code to pick an image from the gallery. When I test it with Samsung Galaxy S4, it directly goes to Gallery that is what I want actually.
BUT, when I test my code on LG Optimus II device, it shows a dialog gives an option to choose either Gallery or Picture. In other words, it adds one more layer which I do not want.
Both devices have KitKat 4.4.2 operating system.
public static void showFileChooser(Activity activity) {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_PICK);
activity.startActivityForResult(Intent.createChooser(intent, "Select Picture"), 1);
}

when I test my code on LG Optimus II device, it shows a dialog gives an option to choose either Gallery or Picture
That is because there are two activities on that device that support ACTION_PICK of image/* files. There can be zero to N such activities, depending on what apps are on the device. This will include both pre-installed apps and apps that the user installed themselves. These will range from local file managers to general cloud providers (e.g., Dropbox) to image-specific apps (e.g., Instagram).
In other words, it adds one more layer which I do not want.
Then do not use ACTION_PICK. You are delegating to a third-party app; it is up to the user, not you, what third-party app the user wishes to use.

if you want Gallery then
Intent pickImageIntent = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
please use for api 19 or above
if (Build.VERSION.SDK_INT < 19) {
Intent intent = new Intent();
intent.setType("image/jpeg");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent,
"Select image to promote"),
GALLERY_INTENT_CALLED);
} else {
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/jpeg");
startActivityForResult(intent,
GALLERY_KITKAT_INTENT_CALLED);
}

How to pick multiple files from Android's gallery?

i need to open gallery and pick 1-n images OR 1-n videos (2 different intent) from Android's gallery, like the ACTION_PICK intent. How can I achieve that? There are some cool library on GitHub for multiple pick or custom gallery?

If you use API 18 or higher, you can add to your intent.putExtra like so:
Intent intent = new Intent();
intent.setType("image/*,video/*"); //For choosing both images and/or videos
intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true); //This should allow multiple selection
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent,"Select Picture"), 1);
There is also a GitHub project to build your own GridView with multi selection
Read here

To pick multiple files from gallery you need to simply modify your intent. For example:
Intent i = new Intent();
i.setType("image/*");
i.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
i.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(
Intent.createChooser(intent,"Select"), 1);
Please note the i.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);

Pick Image From Android Device's Gallery App

In my android application, I implemented a feature to pick an image from Gallery. For that earlier I was doing this-
Intent pickImageIntent = new Intent(Intent.ACTION_GET_CONTENT);
pickImageIntent.setType("image/*");
startActivityForResult(pickImageIntent, GALLERY_REQUEST_CODE);
By doing this, a dialog with all available image source application like Dropbox including Native Gallery app were displayed and it asks to choose one. Then I changed to
Intent pickImageIntent = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
pickImageIntent.setType("image/*");
startActivityForResult(pickImageIntent, GALLERY_REQUEST_CODE);
By doing this most of applications were not diplayed but still some like Picasa are diplayed. I want to pick an image from Device's native gallery app only or we can say from either device's internal or external memory not from any third party application.
If any one has solution for this please help me with that.

To pick image from Gallery only
Intent pickImageIntent = new Intent(Intent.ACTION_PICK);
pickImageIntent.setType("image/*");
startActivityForResult(pickImageIntent, GALLERY_REQUEST_CODE);