CODEWITHSUNDEEP
androidandroid-drawableandroid-resourcesandroid-hardwareandroid-resolution
Jim
Jim

Reputation: 4405

How do I know which resources will be loaded for my device?

If I have any device at hand, how can I know which resources will be used by my apk?
e.g. drawable-hdpi or drawable-xhdpi or drawable-xxhdpi
I am not asking in theory which of these folders is loaded when but specifically if I have a random device at hand how do I know which will be used?

Upvotes: 1

Views: 775

Answers (3)

user2711811
user2711811

Reputation:

One diagnostic method which is simple is to add a strings.xml(or resource type of your choice) to a qualified res/values- directory with a string value corresponding to the density such as in:

res/values-xxhdpi
    strings.xml (containing)
        <string name="selected_density">xxhdpi</string>

You can do this with other resources types as well such as integer. This lets the system do the work for you. Do this for each density of interest and also supply a default in values/ version.

Then in code simply:

String densityStr =  context.getString(R.string.selected_density);

See Configuration qualifier names table here: https://developer.android.com/guide/topics/resources/providing-resources

Upvotes: 1

touhid udoy
touhid udoy

Reputation: 4442

You have to understand the idea of Density Buckets. Take a look at this image(collected from here) enter image description here

So, Below 160 dpi is called ldpi and found inside folder drawable-ldpi and below 320 and upto 480 dpi is called xhdpi and found inside folder drawable-xhdpi etc.

So, which variation will be used solely depends on your phone's screen density. For better understanding take a look at this article, specially on the Table-1.

To get your phone's density, you can use this code

final float scale = getResources().getDisplayMetrics().density;

So,If your phone falled under xhdpi category, which is between 320 and 480 dpi, drawable-xhdpi variation will be used and so on.

Upvotes: 2

Nooruddin Lakhani
Nooruddin Lakhani

Reputation: 6967

You can take a look at some Google results like: generator or explanation if you want to know the 'magic' behind it.

And on the Android development site you can find an overview of the density buckets: Density buckets

If that still doesn't answer your question, you can also take per example a couple of different images per density folder (hdpi, ldpi, mdpi...) and just see which shows on your device or emulator.

Upvotes: 2

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