feat: add ability to change display density (dpi)

Author: ashishb

README.md

@@ -216,7 +216,10 @@ adbe [options] battery saver (on | off)
 adbe [options] cat <file_path>
 adbe [options] clear-data <app_name>
 adbe [options] dark mode (on | off)
+adbe [options] debug-app (set [-w] [-p] <app_name> | clear)
 adbe [options] devices
+adbe [options] display size
+adbe [options] display size (ldpi | mdpi | hdpi | xhdpi | xxhdpi | xxxhdpi)
 adbe [options] (enable | disable) wireless debugging
 adbe [options] dont-keep-activities (on | off)
 adbe [options] doze (on | off)

adbe/adb_enhanced.py

@@ -2102,3 +2102,16 @@ def print_display_size() -> None:
         print_message("Display size is xxhdpi (480 dpi)")
     else:
         print_message("Display size is xxxhdpi (640 dpi)")
+
+
+def set_display_size(size: int) -> None:
+    """
+    Set the display size to the given value.
+    :param size: The display size in dpi.
+    """
+    cmd = f"wm density {size:d}"
+    result = execute_adb_shell_command3(cmd)
+    if result.return_code != 0:
+        print_error_and_exit(f"Failed to set display size, stderr: {result.stderr}")
+
+    print_verbose(f"Display size set to {size:d} dpi")

adbe/main.py

@@ -42,6 +42,7 @@
     adbe [options] debug-app (set [-w] [-p] <app_name> | clear)
     adbe [options] devices
     adbe [options] display size
+    adbe [options] display size (ldpi | mdpi | hdpi | xhdpi | xxhdpi | xxxhdpi)
     adbe [options] (enable | disable) wireless debugging
     adbe [options] dont-keep-activities (on | off)
     adbe [options] doze (on | off)
@@ -196,6 +197,12 @@ def _get_actions(args: dict[str, typing.Any]) -> dict[tuple[str, str], typing.Ca
 
         # Display size related
         # https://developer.android.com/training/multiscreen/screendensities
+        ("display", "size", "ldpi"): lambda: adb_enhanced.set_display_size(120),
+        ("display", "size", "mdpi"): lambda: adb_enhanced.set_display_size(160),
+        ("display", "size", "hdpi"): lambda: adb_enhanced.set_display_size(240),
+        ("display", "size", "xhdpi"): lambda: adb_enhanced.set_display_size(320),
+        ("display", "size", "xxhdpi"): lambda: adb_enhanced.set_display_size(480),
+        ("display", "size", "xxxhdpi"): lambda: adb_enhanced.set_display_size(640),
         ("display", "size"): adb_enhanced.print_display_size,
 
         # GFX