Jan Rabe kibotu

Keyboard Avoidance Implementation

Overview

This document describes the keyboard avoidance implementation for the Messenger iOS app, ensuring that the ChatInputView is not overlapped by the keyboard on iOS 16+ (including iOS 16.0.1 and 16.1).

Problem

The SwiftUI-based ChatInputView was not properly avoiding the keyboard when it appeared, potentially causing the input field to be hidden behind the keyboard.

Solution

View Controller Focus Monitoring Pattern

Overview

This document describes a pragmatic solution for monitoring focus changes in iOS view controllers. The pattern allows view controllers to be notified when they gain or lose user attention due to various system events like modals, alerts, app backgrounding, or navigation changes.

Problem Statement

iOS view controllers need to react to focus changes, but the platform doesn't provide a built-in unified API for this. A view controller may lose focus in several ways:


	/**
	* runMaestro("signin-flow.yaml", "36", "app/build/outputs/apk/debug/app-debug.apk", "de.example")
	*/
	def runMaestro(flow, api, apk, bundleIdentifier) {

	int rc = sh(
	script: "./build/buildscripts/run-headless-maestro-tests.sh ${flow} ${apk} ${api}",
	returnStatus: true
	)

	#!/usr/bin/env python3
	import os
	import re
	import sys
	from pathlib import Path
	from typing import Set, List, Tuple
	from dataclasses import dataclass

	@dataclass
	class InjectClass:

	import androidx.compose.animation.core.CubicBezierEasing
	import androidx.compose.animation.core.LinearEasing
	import androidx.compose.animation.core.RepeatMode
	import androidx.compose.animation.core.animateFloat
	import androidx.compose.animation.core.animateFloatAsState
	import androidx.compose.animation.core.infiniteRepeatable
	import androidx.compose.animation.core.rememberInfiniteTransition
	import androidx.compose.animation.core.tween
	import androidx.compose.foundation.background
	import androidx.compose.foundation.layout.Box

	#!/usr/bin/env python3

	import subprocess
	import shutil
	import os
	import argparse
	from pathlib import Path

	# Global dry run flag
	DRY_RUN = False

	import os
	import subprocess
	from typing import Dict, Set
	import re

	# Constants
	EVENTS_MODULE = "mover"

	def checkout_core_repo() -> str:
	"""Clone and checkout the core repository with shallow clone (no history), return its path"""

	#!/bin/bash

	# Extract consumer ProGuard rules from all dependencies and generate an HTML report
	# Author: Jan Rabe

	set -e

	SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
	cd "$SCRIPT_DIR"

	import android.content.SharedPreferences
	import androidx.core.content.edit
	import de.check24.android.plugin.profis.events.shared.logger.EventsLogger
	import kotlinx.coroutines.flow.Flow
	import kotlinx.coroutines.flow.MutableStateFlow
	import kotlin.properties.ReadWriteProperty
	import kotlin.reflect.KProperty

	/**
	* A type-safe SharedPreferences delegate with enhanced features: