Develop Reference

How to set the image to image view that is downloaded to your application in android local

I have a image downloaded locally in application
/data/data/com.starboard.stella/files/Stella/FragranceFinder/QuestionImages/option1_woman.png
How do I access the image to set for image view?

you can use Picasso for that
Picasso.with(context).load(new File(...)).into(imageView);
refernce: http://square.github.io/picasso/

Creating a File type using your filepath, creating a Bitmap out of that File and setting the Image bitmap of your ImageView using setImageBitmap is probably the best way to go.
Paresh Mayani gives a great solution with code here: https://stackoverflow.com/a/4182060/5920187

To load an image
File imgFile = new File(pathToPicture);
Bitmap bitmap = BitmapFactory.decodeFile(pathToPicture);
then
imageView.setImageBitmap(bitmap);

I think you should try this:
try {
File file = new File(getExternalFilesDir(null) + "/Stella/FragranceFinder/QuestionImages/", "option1_woman.png");
Bitmap bitmap = BitmapFactory.decodeStream(new FileInputStream(file));
ImageView image =(ImageView)findViewById(R.id.image);
image.setImageBitmap(bitmap);
} catch (FileNotFoundException e) {
e.printStackTrace();
}

Android: Loading images from the internal folder by using String ID

I'm new to android programming and have been trying to figure out how to
load an image (at startup) from the assets folder and save that image in a object (What kind of object should i save it into?)
So that when i want to display that object in an imageview i can just point to it and retreve an imageview displaying that image.
I tryed looking for similar posts but there was nothing specific enough for me to understand fully.
Is there any way to do this or is it a completely wrong approach to using images in android?
Thanks in advance

Here is the code you need. It gets the AssetManager, reads a bitmap from assets, and places the bitmap in an image view.
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// Get the AssetManager
AssetManager manager = getAssets();
// Read a Bitmap from Assets
try {
InputStream open = manager.open("icon.png");
Bitmap bitmap = BitmapFactory.decodeStream(open);
// Assign the bitmap to an ImageView in this layout
ImageView view = (ImageView) findViewById(R.id.ImageView01);
view.setImageBitmap(bitmap);
} catch (IOException e) {
e.printStackTrace();
}
}
The onCreate method runs when the activity is created. The content view is set and then the AssetManager is retrieved. The AssetManager opens the image "icon".png and saves it as a bitmap. The bitmap can now be assigned to imageviews.

load all images from internal memory to a viewPager android

i have designed an app to show images in a view Pager, now the thing is that user saves this images to its internal memory and the app gives a random no. to the image as name, upon clicking "View Favorite " button the user gets to view all the images in a view pager one by one, can any1 help me as to how i go about it??
private void loadImageFromStorage(String path)
{
try {
File f=new File(path, "image.png");
Bitmap b = BitmapFactory.decodeStream(new FileInputStream(f));
Context context =getApplicationContext();
final ImageView imageView = new ImageView(getApplicationContext());
int padding = context.getResources().getDimensionPixelSize(
R.dimen.padding_medium);
imageView.setPadding(padding, padding, padding, padding);
imageView.setImageBitmap(b);
}
catch (FileNotFoundException e)
{
e.printStackTrace();
}
this is the code to load the image but the thing is i need to load all the images not just one image.png but everything.png ;) how do i do it??
and also i wanna load with Picasso but i cant load the bitmap it says something like load is not for bitmap etc. etc. please help

I don't know if you have already solved this issue. But if you don't give your files a random number when you save them, you could give them sequential numbers like 1.jpg, 2.jpg .... then you could do a while loop to load each image. For example:
int counter = 0;
boolean imageExists = true;
while(imageExists)
{
File imageFile = new File (filePath + counter + ".jpg");
if(imageFile.exists())
{
Picasso.with(getBaseContext()).load(imgFile).fit().centerInside().into(imageView);
}
else
{
imageExists = false;
}
}
Hopefully this helps.

Can't see image in ImageView android

I am trying to populate ListView Item with an object from MyClass. One of the property of the class is jpg image. I put my images in images/ folder. I use this code for populating
private static final String ASSETS_DIR = "images/";
String imgFilePath=ASSETS_DIR+r.resourceID;
try{
Bitmap bitmap = BitmapFactory.decodeFile(imgFilePath);
resourceIdView.setImageBitmap(bitmap);
}
catch(Exception e)
{
System.out.println(" Error");
}
r.resourceID is the name of the image for example "AUD.jpg"
resourceIDView is ImageView
The program don't get in the catch part, however I can't see the image
could somebody help me??

From your naming convention I conclude that you are storing your images in the "assets" folder. If yes, then you can use the following lines of code and get this issue resolved:
private static final String ASSETS_DIR = "images/";
String imgFilePath=ASSETS_DIR+r.resourceID;
try{
Drawable d = Drawable.createFromStream(getAssets().open(imgFilePath), null);
resourceIdView.setImageDrawable(d);
}
catch(Exception e)
{
System.out.println(" Error");
}
Hope this helps.

put your image in drawable folder and set so imageview...
resourceIdView.setImageResource(R.drawable.AUD);

You can try to put your images in drawable folder under /res. Use an ImageAdapterthat extend BaseAdapterto populate your ListView. You can use this code : http://www.java2s.com/Code/Android/2D-Graphics/extendsBaseAdaptertocreateImageadapter.htm

What I had was that the image was showing in Designer but not on device, so I put the image in all the drawable-xdpi directories. This worked for me.

Populate Android Gallery from image file paths?

I have some images that are saved to a directory on the Android device when the application starts--I would like to be able to display these images in a Gallery, but so far I haven't been able to do it.
I was following the sample Gallery code here, but it uses drawable resource IDs instead of file paths. I found this solution that is similar to what I'm looking for, except it uses ImageView instead of Gallery.
So the code using ImageView would look something like this:
File imgFile = new File(“/data/data/com.myproject.example/files/someImage.png”);
if(imgFile.exists()){
Bitmap myBitmap = BitmapFactory.decodeFile(imgFile.getAbsolutePath());
ImageView myImage = (ImageView) findViewById(R.id.imageviewTest);
myImage.setImageBitmap(myBitmap);
}
The above code works, but I'm not sure how to do it with a Gallery. I have been searching for answers and trying different things, but I'm v new to Android development and I feel like I'm in a bit over my head.
Any help is appreciated. Thank you in advance.

Basically I think you just need to put your two examples together.
Use the HelloGallery example as a start, however you want to change the code inside the getView() method of the ImageAdapter to call setImageBitmap() on the ImageView instead of setImageResource().
You will need an array/collection of file paths of images you want to load.

What you need to do is something like this:
public ImageAdapter(Context c, int itemId) {
context = c;
imgArr = GlobalStore.getItem(itemId).getPhotos();
TypedArray attr = context.obtainStyledAttributes(R.styleable.HelloGallery);
mGalleryItemBackground = attr.getResourceId(R.styleable.HelloGallery_android_galleryItemBackground, 0);
attr.recycle();
}
as you can see this is basically a copy from Gallery tutorial. In the constructor imgArr variable is loaded with an array of JPG file names. These were for example read from a database.
Then in the getView function you have something like this...
public View getView(int position, View convertView, ViewGroup parent) {
ImageView imageView = new ImageView(context);
String tmpStr = appContext.getFilesDir() + File.separator + "photos" + File.separator + imgArr.get(position);
Bitmap bitmap = BitmapFactory.decodeFile(tmpStr);
imageView.setImageBitmap(bitmap);
imageView.setLayoutParams(new Gallery.LayoutParams(350, 300));
imageView.setScaleType(ImageView.ScaleType.FIT_XY);
imageView.setBackgroundResource(mGalleryItemBackground);
return imageView;
}
As you can see getFilesDir() gets your applications data location where it stores files, then let's imagine all photos are in "photos" directory, you build a path and attach a file name from the imgArr array. Since this is called for every photo you just use the passed position variable.
If you don't have an array of photos then maybe the way is to build it by reading the directory where you store photos, load all of the filenames in an array and then do this.
Then you do the rest on the gallery side as in the gallery tutorial.