I'm developing an application that sets wallpapers from com.android.launcher3 package drawable resources. At some point I need to check if the wallpaper is set correctly so I can move on to other step.
After some research in SO and googling, I wasn't able to find any information about getting current wallpaper name.
Here is how I set the drawable which I have no problem:
try {
WallpaperManager wallpaper_manager = WallpaperManager.getInstance(m_context);
Resources res = m_context.getPackageManager().getResourcesForApplication("com.android.launcher3");
int drawable_id = res.getIdentifier(wallpaper_name, "drawable", "com.android.launcher3");
Drawable drawable = res.getDrawable(drawable_id, null);
if(drawable != null) {
wallpaper_manager.setBitmap(((BitmapDrawable)drawable).getBitmap());
}
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
I can get the current wallpaper as drawable as well:
WallpaperManager wallpaper_manager = WallpaperManager.getInstance(m_context);
Drawable drawable = wallpaper_manager.getDrawable();
but I haven't managed to get current wallpaper name.
I need help.
Thanks in advance.
I would try this two options:
1. Using wallpaperManager
You shouold be able to get the information using this:
wallpaperManager.getWallpaperInfo();
This will return a WallpaperInfo object which contains all the data about the wallpaper.
More information
https://developer.android.com/reference/android/app/WallpaperManager.html
2. Getting the drawable file
You can also try to get the URI of the drawable like this:
String imageUri = "drawable://" + R.drawable.image;
And get the file name from there.
Hope it helps you.
Related
I'm using NotificationListenerService for catching notification, with the help of kpbird blog. But I'm unable to extract the icon's drawable. I'm also going through this, but things are not cleared to me. Please help.
To get other application icon, just get package name of that application and use below code. You will get package name from notification instance.
String pack= "com.whatsapp" // ex. for whatsapp;
Context remotePackageContext = null;
Bitmap bmp = null;
try {
remotePackageContext = getApplicationContext().createPackageContext(pack, 0);
Drawable icon = remotePackageContext.getResources().getDrawable(id);
if(icon !=null) {
bmp = ((BitmapDrawable) icon).getBitmap();
}
} catch (Exception e) {
e.printStackTrace();
}
I've created a folder 'test' inside res and I want to display them in an image view. How exactly can I fetch the image with a given name in the designated folder?
ImageView test = (ImageView) testing.findViewById(R.id.test);
flag.setImageDrawable(getResources().); <==== This?
EDIT
InputStream is = null;
try {
is = this.getResources().getAssets().open("country_flags/sample.png");
} catch (IOException e) {
;
}
image = (ImageDrawable) BitmapFactory.decodeStream(is);
try {
flag.setImageDrawable(getResources().getAssets().open("country_flags/"+nationality+".png"));
} catch (IOException e) {
e.printStackTrace();
}
How exactly can I fetch the image with a given name in the designated folder?
You don't. You cannot invent new resource types, and so your test directory will, at best, be forever ignored.
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.
I am trying to use an image from the sd card and set it as the background for a relativelayout. I have tried other solutions that i have found here and elsewhere but they havent seemed to work for me. here is my code. I have commented out other ways that i have tried and didnt work. the only thing that worked for me was using setBackgroudnResource and using a resource from the app, but this was just to test to make sure mRoot was set up correctly. when I have tried all the other ways, it just doesn't set anything. Anyone know what I am doing wrong, or if there is a better way to do this?
//one way i tired...
//String extDir = Environment.getExternalStorageDirectory().toString();
//Drawable d = Drawable.createFromPath(extDir + "/pic.png");
//mRoot.setBackgroundDrawable(d);
//another way tried..
//Drawable d = Drawable.createFromPath("/sdcard/pic.png");
//mRoot.setBackgroundDrawable(d);
//last way i tried...
mRoot.setBackgroundDrawable(Drawable.createFromPath(new File(Environment.getExternalStorageDirectory(), "pic.png").getAbsolutePath()));
//worked, only to verify mRoot was setup correctly and it could be changed
//mRoot.setBackgroundResource(R.drawable.bkg);
You do not load a drawable from SD card but a bitmap. Here is a method to load it with the reduced sampling (quality) so the program will not complain if the image is too large. Then I guess you need to process this bitmap i.e. crop it and resize for the background.
// Read bitmap from Uri
public Bitmap readBitmap(Uri selectedImage) {
Bitmap bm = null;
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 2; //reduce quality
AssetFileDescriptor fileDescriptor =null;
try {
fileDescriptor = this.getContentResolver().openAssetFileDescriptor(selectedImage,"r");
} catch (FileNotFoundException e) {
e.printStackTrace();
}
finally{
try {
bm = BitmapFactory.decodeFileDescriptor(fileDescriptor.getFileDescriptor(), null, options);
fileDescriptor.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return bm;
}
The Uri here can be supplied from a gallery picker activity.
The image then can be saved into application resources and loaded into an imageView
private void saveBackground(Bitmap Background) {
String strBackgroundFilename = "background_custom.jpg";
try {
Background.compress(CompressFormat.JPEG, 80, openFileOutput(strBackgroundFilename, MODE_PRIVATE));
} catch (Exception e) {
Log.e(DEBUG_TAG, "Background compression and save failed.", e);
}
Uri imageUriToSaveCameraImageTo = Uri.fromFile(new File(BackgroundSettings.this.getFilesDir(), strBackgroundFilename));
// Load this image
Bitmap bitmapImage = BitmapFactory.decodeFile(imageUriToSaveCameraImageTo.getPath());
Drawable bgrImage = new BitmapDrawable(bitmapImage);
//show it in a view
ImageView backgroundView = (ImageView) findViewById(R.id.BackgroundImageView);
backgroundView.setImageURI(null);
backgroundView.setImageDrawable(bgrImage);
}
File file = new File( url.getAbsolutePath(), imageUrl);
if (file.exists()) {
mDrawable = Drawable.createFromPath(file.getAbsolutePath());
}
I suggest checking that the drawable is being loaded correctly. Some things to try:
Try using a different image on the sd card
Put pic.png in R.drawable and make sure mRoot.setBackgroundResource() does what you expect
After loading the drawable, check d.getBounds() to make sure it is what you expect
i want to show image in imageview without using id.
i will place all images in raw folder and open
try {
String ss = "res/raw/images/inrax/3150-MCM.jpg";
in = new FileInputStream(ss);
buf = new BufferedInputStream(in);
Bitmap bMap = BitmapFactory.decodeStream(buf);
image.setImageBitmap(bMap);
if (in != null) {
in.close();
}
if (buf != null) {
buf.close();
}
} catch (Exception e) {
Log.e("Error reading file", e.toString());
}
but this is not working i want to access image using its path not by name
read a stream of bytes using openRawResource()
some thing like this should work
InputStream is = context.getResources().openRawResource(R.raw.urfilename);
Check this link
http://developer.android.com/guide/topics/resources/accessing-resources.html#ResourcesFromCode
It clearly says the following
While uncommon, you might need access your original files and directories. If you do, then saving your files in res/ won't work for you, because the only way to read a resource from res/ is with the resource ID
If you want to give a file name like the one mentioned in ur code probably you need to save it on assets folder.
You might be able to use Resources.getIdentifier(name, type, package) with raw files. This'll get the id for you and then you can just continue with setImageResource(id) or whatever.
int id = getResources().getIdentifier("3150-MCM", "raw", getPackageName());
if (id != 0) //if it's zero then its not valid
image.setImageResource(id);
is what you want? It might not like the multiple folders though, but worth a try.
try {
// Get reference to AssetManager
AssetManager mngr = getAssets();
// Create an input stream to read from the asset folder
InputStream ins = mngr.open(imdir);
// Convert the input stream into a bitmap
img = BitmapFactory.decodeStream(ins);
} catch (final IOException e) {
e.printStackTrace();
}
here image directory is path of assets
like
assest -> image -> somefolder -> some.jpg
then path will be
image/somefolder/some.jpg
now no need of resource id for image , you can populate image on runtime using this