feat: report slider, text field and switch state consistently on android and ios

[gmegidish]

Summary

Android and iOS reported element state in different fields, so the same assertion could not pass on both platforms. This aligns value and checked:

	Before	After
Android slider / progress / rating bar	no value	range: {min, max, current} from RangeInfo, and value = current (e.g. "72")
Android text field	typed text in text only	also copied to value (text unchanged)
iOS switch, on	value: "1" only	value: "1" and checked: true

Changes

Android agent (agents/android/java/UiTreeSerializer.java)

• Sends range: {min, max, current} from AccessibilityNodeInfo.getRangeInfo() (via Float.toString, so 0.1f is 0.1); omitted for indeterminate ranges (type 3) and non-finite values
• Sends editable from isEditable()

Android mapping (devices/android.go)

• New optional range on ScreenElement (Android only; iOS has no min/max, only a value string such as "50 %")
• value = range position formatted without a trailing .0, else the text of an editable node
• A node with a value is kept even without a label or id (e.g. an unlabeled progress bar)
• Text is copied, not moved: consumers reading text see no change

iOS mapping (devices/devicekit/source.go)

• A Switch with value "1" gets checked: true; unset otherwise, matching Android, which only reports it when true

Only the DeviceServer dump path gets value; the uiautomator XML fallback has no range or editable attribute.

Testing

• 12 new unit tests (slider/fractional/unset/unlabeled range, agent JSON decoding, editable copy, empty field, non-editable label, iOS switch on/off, non-switch value "1"); go test ./... passes
• Pixel 9a emulator, playground Basic UI: slider range {0, 100, 0} → {0, 100, 72} and value 0 → 72 after tapping; text field text and value both "Hello World", empty fields no value; switch checked: true after toggling
• iPhone 17 simulator, playground Basic UI: switch (checked) when on, unset when off; text field unchanged (value: "hello")

Notes for reviewers

• Slider values still differ in format across platforms: Android reports the raw position (72), iOS a percentage string ("50 %", with a non-breaking space). range lets a client such as mobilewright normalize both to a percentage; mobilecli itself doesn't interpret it.
• mobilewright's clear() verifies that value is empty afterwards. On Android that check could never fail before; with this change it can, if a field does not actually clear.

Summary by CodeRabbit

• New Features
  • Android screen elements now include minimum, maximum, and current values for valid sliders, progress indicators, and rating controls.
  • Editable Android fields expose their text as a value, while retaining the text itself.
  • Switches with a value of “1” are marked as checked; other switch values are not.
  • Android elements with values or ranges are retained even when they have no label.

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Reviewing files that changed from the base of the PR and between bdf3539 and 183e080.

📒 Files selected for processing (4)

• agents/android/java/UiTreeSerializer.java
• devices/android.go
• devices/android_elements_test.go
• types/screen.go

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📝 Walkthrough

Walkthrough

Android screen elements now carry optional range data and values derived from range positions or editable text. DeviceKit switch elements with value "1" now have Checked set to true.

Changes

Android Screen Element Values

Layer / File(s)	Summary
Define and serialize Android ranges types/screen.go, agents/android/java/UiTreeSerializer.java	ScreenElement gains optional range data. The Android serializer emits range values only for determinate ranges with finite minimum, maximum, and current values.
Convert Android nodes to screen element values devices/android.go, devices/android_elements_test.go	Android node conversion transfers range data and derives values from range positions or editable text. Tests cover range and editable values, JSON decoding, and omitted data.

DeviceKit Switch State

Layer / File(s)	Summary
Set switch checked state from value devices/devicekit/source.go, devices/devicekit/source_test.go	A switch with value "1" is marked checked. Tests cover value "0" and a non-switch element with value "1".

Priority: ⬇️ Low

Estimated code review effort: 3 (Moderate) | ~20 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant UiTreeSerializer
  participant DeviceServer
  participant ScreenElement
  UiTreeSerializer->>DeviceServer: serialize valid range data
  DeviceServer->>ScreenElement: transfer range and derived value

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Merge Risk: ⚪ Minimal · up to 183e0

No actionable merge-blocking issue is established for the Android value and range reporting or iOS switch state changes.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 41.94% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 31 functions across 6 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the main changes: consistent reporting of slider, text-field, and switch state across Android and iOS.

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Inline comments:
In @agents/android/java/UiTreeSerializer.java:
- Around line 138-140: Update the range handling in UiTreeSerializer to omit
range-current when range.getType() is 3 or range.getCurrent() is non-finite.
Check the current value for finiteness before converting it and calling
JSONObject.put, using API-35-compatible checks without referencing an
API-36-only constant.

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Configuration used: Repository: mobile-next/mobilecli/.coderabbit.yaml

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📥 Commits

Reviewing files that changed from the base of the PR and between 38db396 and 328c581.

📒 Files selected for processing (5)

• agents/android/java/UiTreeSerializer.java
• devices/android.go
• devices/android_elements_test.go
• devices/devicekit/source.go
• devices/devicekit/source_test.go

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