Develop Reference

Moving of image between ImageButtons in seperate Activities onClick Bitmap

So 1 have 2 ImageButtons, clothesButton1 with an image declared in xml, and imageButton2 which is blank. Both are in seperate activities.
Upon clicking clothesButton1, i want to move the image in clothesButton1 to imageButton2 using Bitmap. clothesButton1 will become blank afterwards.
Here's my code in Java for clothesButton1:
final ImageButton clothesButton1 =(ImageButton)findViewById(R.id.clothesBtn1);
clothesButton1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
clothesButton1.buildDrawingCache();
Bitmap bitmapclothes = clothesButton1.getDrawingCache();
Intent intent = new Intent();
intent.putExtra("BitmapClothes", bitmapclothes);
}
});
In my second activity (for imageButton2):
final ImageButton imageButton2 = (ImageButton)findViewById(R.id.imageButton2);
Intent intent = getIntent();
Bitmap bitmap = (Bitmap) intent.getParcelableExtra("BitmapClothes");
imageButton2.setImageBitmap(bitmap);
However the moving function isn't working and I really have no idea where I am wrong. Any help is greatly appreciated.

The error is because of Intent. There are two types of Intent in android Explicit and implicit intents. When you create an Intent with a Context and a Class object, you are creating an explicit intent. You use explicit intents to start activities within your application.When an activity in your application wants to start an activity in another application, you create an implicit intent. In Your case it is Explicit Intent use Intent intent=new Intent(getApplicationContext(), secondActivityName.class).
In your case
Intent intent=new Intent(getApplicationContext(),secondActivityName.class);
intent.putExtra("BitmapClothes", bitmapclothes);
startActivity(intent);
To understand more about intent read this tutorial.

I think the problem is that you didn't enabled the drawing cache on clothesButton1.
clothesButton1.setDrawingCacheEnabled(true);
Please refer:https://developer.android.com/reference/android/view/View.html#getDrawingCache%28boolean%29

I think that you can achieve this easily with Activity Transition. Take a good look at it :)
The Start an activity with a shared element section might be what you want.

First,getDrawingCache() returns null;second the way you invoke other activity is not correct!
try this :
clothesButton1.setDrawingCacheEnabled(true);
clothesButton1.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED),
View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
clothesButton1.layout(0, 0, clothesButton1.getMeasuredWidth(), imageButton.getMeasuredHeight());
clothesButton1.buildDrawingCache(true);
Bitmap bitmapclothes = Bitmap.createBitmap(clothesButton1.getDrawingCache());
clothesButton1.setDrawingCacheEnabled(false);
Intent intent = new Intent(NowActivity.this,SecondActivity.class);
intent.putExtra("BitmapClothes", bitmapclothes);
startActivity(intent);
Reference:Android View.getDrawingCache returns null, only null

Fragment gets destroyed 4 times when returning from Camera Intent

I have a simple fragment that when user taps on the screen it will send an Intent to open the Camera app and then expect an image to be returned.
public void camera() {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, REQUEST_IMAGE_CAPTURE);
}
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == Activity.RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap imageBitmap = (Bitmap)extras.get("data");
imageView.setImageBitmap(imageBitmap);
}
}
According to Google developer this should be all that is required.
After the picture has been taken and I press SAVE button in Camera app it returns back to my app.
I have set some breakpoints in onDestroy() and in onActivityResult(), it first destroys the fragment and creates a new one 2 times, then onActivityResult() is called and then it is .... destroyed again ... and created. So the image gets lost.
Why is this happening and how can I fix it?
Running on Samsung S4

I found a dirty fix to it (dirty imo looks pretty weird)
In the AndroidManifest.xml add this parameter to your Activity that handles the Camera Intent:
android:configChanges="orientation|screenSize"
The Activity gets destroyed because of the orientation change in the transition to and from the Camera app... with this parameter it wont destroy.

Did u try using an intent extra called EXTRA_OUTPUT which will store the photo in given uri
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
startActivityForResult(intent , Request_Id);

Error loading image from presistent Uri

The program flow is that the user selects an image from the gallery and it is displayed in an image view. This works fine. At the same time, the Uri is written to a database.
Later, when the program is run again or that activity is displayed again, the Uri is retrieved from the database and the image is displayed again. This second showing of the image is what causes the exception:
requires android.permission.MANAGE_DOCUMENTS or android.permission.MANAGE_DOCUMENTS
I added the permission to the manifest and the exception still occurs.
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.MANAGE_DOCUMENTS" />
The same procedure attempts to display both images, and it works when it comes from the picker, but fails when it comes from the presistent Uri from the database.
Picker Intent
try {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(
Intent.createChooser(intent, "Select Picture"),
PICK_IMAGE);
} catch (Exception e) {
Toast.makeText(getApplicationContext(),
"Error",
Toast.LENGTH_LONG).show();
Log.e(e.getClass().getName(), e.getMessage(), e);
}
With the result from the picker intent I use
Uri selectedImageUri = data.getData();
With the database read I use. localImage is a String.
Uri.parse(localImage)
I read this bug report https://issues.apache.org/jira/browse/CB-5398, but I'm not sure how to use it to resolve this situation. The code below from another thread seems to attempt to resolve a similar issue with permissions and the photo picker, but in my case I'm not picking again, I just need to display the image from the Uri.
I guess it is a matter of resetting permissions. I'm not really sure. I have the permissions in the manifest. Perhaps I need different code to display an image from a Uri not obtained from the picker? Maybe I need to target a different API? My build.gradle says targetSdkVersion 21, minSdkVersion 15. These were the defaults. I'm in Android Studio 1.0.2.
I'm stumped. Any help is appreciated.
public static final String KITKAT_VALUE = 1002;
Intent intent;
if (Build.VERSION.SDK_INT < 19){
intent = new Intent();
intent.setAction(Intent.ACTION_GET_CONTENT);
intent.setType("*/*");
startActivityForResult(intent, KITKAT_VALUE);
} else {
intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("*/*");
startActivityForResult(intent, KITKAT_VALUE);
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == KITKAT_VALUE ) {
if (resultCode == Activity.RESULT_OK) {
// do something here
}
}
}

At the same time, the Uri is written to a database.
That's not going to work prior to API Level 19, and then only if you are using the Storage Access Framework (ACTION_OPEN_DOCUMENT) and take the offered persistent permissions. Given your existing code, the temporary permissions that you are granted for that Uri will expire, at the latest when your process is terminated.
I added the permission to the manifest and the exception still occurs.
You cannot hold MANAGE_DOCUMENTS, unless you are signed by the signing key that signed the firmware.

Android ringtone picker refresh the activity, why?

in my app i have some layout to edit a task and select a RingTone and save it into the database.
When i update the task, i one also to update the ringtone name. I use for that the ringtone picker, start a new Intent and get the selected ringtone uri inside the onActivityResult() method.
The problem ist, every time when i click to pick the new RingTone the page reload and i lose all the populated data in my formular, that come from the database.
How can i solve this problem. Is there a way to open the ringtone picker without reload the complete activity after selecting the ringtone?
Here is how i open picker:
protected void openRingtoneDialog() {
final Intent intent = new Intent(RingtoneManager.ACTION_RINGTONE_PICKER);
intent.putExtra(RingtoneManager.EXTRA_RINGTONE_SHOW_SILENT, false);
intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TYPE, RingtoneManager.TYPE_ALL);
intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TITLE, getString(R.string.ringtone_choose));
if (mAlarmTonUri != null) {
intent.putExtra(RingtoneManager.EXTRA_RINGTONE_EXISTING_URI, mAlarmTonUri);
}
else {
intent.putExtra(RingtoneManager.EXTRA_RINGTONE_EXISTING_URI, (Uri) null);
}
startActivityForResult(intent, RINGTONE_RESULT);
}
and here, how i get the selected ringtone.
#Override
protected void onActivityResult(final int requestCode, final int resultCode, final Intent data) {
String ringTonTitle = "";
// Get the result from RingtoneActivity
if (resultCode == RESULT_OK && requestCode == RINGTONE_RESULT) {
mAlarmTonUri = data.getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI);
if (mAlarmTonUri != null) {
mAlarmTonValue = mAlarmTonUri.toString();
ringTonTitle = RingtoneManager.getRingtone(this, mAlarmTonUri).getTitle(this);
}
else {
ringTonTitle = "unknow";
}
mAlarmTonTextView.setText(ringTonTitle);
}
Thank you for your help!

I ran into this in my app. I had overridden onResume to reload my view in case changes were made while my app wasn't on top. Coming back from the ringtone picker was setting off my onResume. For me, it was safe to move everything from onResume to onStart. There it would run when my app came to the foreground or first started but not when the ringtone picker was dismissed.

Camera Intent result woes

I am attempting to launch the built-in camera to take a picture, a picture that will have a name specified by the activity launching the camera. (code below)
When the camera returns, onActivityResult() goes straight to resultCode == Activity.RESULT_CANCELED. Any explanation for this and solutions would be greatly appreciated.
The camera indeed does take the image, I can see it in my sdcard with a file viewer, but its name is the stock one from the camera. How can I get the name of this taken image to be the one supplied by the activity?
Camera intent code
Intent camera = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
File image = new File("Team image.jpg");
camera.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
camera.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(image));
camera.putExtra(MediaStore.Images.Media.TITLE, "Team image");
startActivityForResult(camera, PICTURE_RESULT);
activityresult code
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data){
if(requestCode == PICTURE_RESULT){
if(resultCode == Activity.RESULT_OK) {
if(data!=null){
Bitmap image = BitmapFactory.decodeFile(data.getExtras().get(MediaStore.Images.Media.TITLE).toString());
grid.add(image);
images.addItem(image);
}
if(data==null){
Toast.makeText(Team_Viewer.this, "no data.", Toast.LENGTH_SHORT).show();
}
}
else if(resultCode == Activity.RESULT_CANCELED) {
Toast.makeText(Team_Viewer.this, "Picture could not be taken.", Toast.LENGTH_SHORT).show();
}
}
}

Have you mark the launch mode of your activity as "singleInstance"?
That may cause your first problem.
My camera goes normal when I remove the "singleInstance".

The two issues are likely related, having to do with the way you are creating the file reference that passes to the camera. If you want your image file to save to the SD Card, you need to create a file reference that includes a full-path to that location, not just a filename. For example, this code would save the image file on the SD card root:
Intent camera = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
File image = new File(Environment.getExternalStorageDirectory(),"TeamImage.jpg");
camera.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(image));
startActivityForResult(camera, PICTURE_RESULT);
I also changed your filename to not include a space; only because I'm not certain that the Camera application won't blow up on that piece also. Since the Camera is getting confused trying to open and write to your file location, that is likely why you always return with RESULT_CANCELED. You don't need the WRITE_EXTERNAL_STORAGE permission here, since the Camera app is doing the SD Card access.
One more note: I don't believe other MediaStore extras can be passed with this Intent. Typically, if you want metadata to be attached to your image, you have to insert the Uri reference with that metadata into the MediaStore ContentProvider prior to saving the image to disk.
Hope that helps!

Not sure what's wrong with your code, here's what works for me:
Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, CAMERA_PIC_REQUEST);
and
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == Activity.RESULT_OK) {
switch (requestCode) {
case CAMERA_PIC_REQUEST:
Bitmap b = (Bitmap) data.getExtras().get("data");
if (b != null) {
updateThumbnail(b);
if (mBitmap != b) {
b.recycle();
}
}
break;
}
}