Resources

Some key types of Android resources:

Directory Resource Type
drawable/

Used for images, icons, and graphics.

Placed in the res/drawable directory.

Bitmap files (PNG, .9.png, JPG, or GIF) or XML files that are compiled into the following drawable resource subtypes:
  • Bitmap files
  • Nine-patches (re-sizable bitmaps)
  • State lists
  • Shapes
  • Animation drawables
layout/ Define the structure and appearance of user interfaces.

Placed in the res/layout directory.
color/ Store color values for consistency across the application.

Placed in the res/values directory.
animator/

Define animations for UI elements.

Placed in the res/anim directory.
raw/

Store files such as audio, video, or any binary data.

Placed in the res/raw directory.
mipmap/

Store app launcher icons at different resolutions.

Placed in the res/mipmap directory.

How to Access Resources in Code:

You can access resources in code using the R class generated by the Android build system. For example:

                  
                    // Accessing a string resource
String appName = getResources().getString(R.string.app_name);

// Accessing a drawable resource
Drawable icon = getResources().getDrawable(R.drawable.ic_launcher);

// Accessing a color resource
int color = ContextCompat.getColor(this, R.color.primary_color);

How to Use Resources in XML:

You can reference resources in XML files using the @ symbol. For example:

                  
                    <!-- Using a string resource in a TextView -->
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/welcome_message" />

<!-- Using a drawable resource as an image source -->
<ImageView
android:id="@+id/imageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_launcher" />

Using resources in this way allows for better organization, localization, and maintenance of your Android application.