Flexbox दिशा, JustifyContent, AlignItems

import { View, Text, StyleSheet } from 'react-native';

export default function SpaceBetween() {
  return (
    <View style={styles.row}>
      <Text style={styles.tab}>Home</Text>
      <Text style={styles.tab}>Search</Text>
      <Text style={styles.tab}>Profile</Text>
    </View>
  );
}

const styles = StyleSheet.create({
  row: {
    flexDirection: 'row',
    justifyContent: 'space-between', // distribute across full width
    paddingHorizontal: 24,
    paddingVertical: 16,
    backgroundColor: '#fff',
    borderTopWidth: 1,
    borderTopColor: '#eee',
  },
  tab: { fontSize: 14, color: '#666' },
});

import { View, Text, StyleSheet } from 'react-native';

export default function AlignDemo() {
  return (
    <View style={styles.container}>
      {/* Row: alignItems centers children vertically */}
      <View style={styles.row}>
        <Text style={styles.smallText}>Small</Text>
        <Text style={styles.largeText}>LARGE</Text>
        <Text style={styles.smallText}>Small</Text>
      </View>
    </View>
  );
}

const styles = StyleSheet.create({
  container: { flex: 1, padding: 20 },
  row: {
    flexDirection: 'row',
    alignItems: 'center', // vertically center all items
    backgroundColor: '#e8f0fe',
    padding: 16,
    borderRadius: 8,
  },
  smallText: { fontSize: 12, color: '#666', marginHorizontal: 8 },
  largeText: { fontSize: 28, fontWeight: 'bold', color: '#111', marginHorizontal: 8 },
});

import { View, Text, StyleSheet } from 'react-native';

export default function CenteredScreen() {
  return (
    <View style={styles.container}>
      <Text style={styles.emoji}>🎯</Text>
      <Text style={styles.title}>Nothing here yet</Text>
      <Text style={styles.subtitle}>Add your first item to get started</Text>
    </View>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center', // vertical center (column main axis)
    alignItems: 'center',     // horizontal center (column cross axis)
    backgroundColor: '#f8f9fa',
  },
  emoji: { fontSize: 56, marginBottom: 16 },
  title: { fontSize: 22, fontWeight: 'bold', color: '#333' },
  subtitle: { fontSize: 14, color: '#999', marginTop: 8, textAlign: 'center' },
});

import { View, Text, StyleSheet } from 'react-native';

export default function AlignSelfExample() {
  return (
    <View style={styles.row}>
      <View style={styles.boxSmall} />
      {/* This box aligns to flex-end independently */}
      <View style={[styles.boxSmall, { alignSelf: 'flex-end', backgroundColor: 'red' }]} />
      <View style={styles.boxSmall} />
    </View>
  );
}

const styles = StyleSheet.create({
  row: {
    flexDirection: 'row',
    alignItems: 'center', // default for siblings
    height: 100,
    backgroundColor: '#e8f0fe',
    padding: 8,
    gap: 8,
  },
  boxSmall: { width: 50, height: 50, backgroundColor: '#4f86f7', borderRadius: 6 },
});

import { View, StyleSheet } from 'react-native';

export default function GapExample() {
  return (
    <View style={styles.container}>
      {[1, 2, 3, 4].map(n => (
        <View key={n} style={styles.card} />
      ))}
    </View>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    flexDirection: 'row',
    flexWrap: 'wrap',
    gap: 12,           // equal gap between all children
    padding: 16,
    backgroundColor: '#f5f5f5',
  },
  card: {
    width: '47%',      // two columns
    height: 100,
    backgroundColor: '#4f86f7',
    borderRadius: 10,
  },
});

import { View, Text, StyleSheet } from 'react-native';

const tags = ['React Native', 'Mobile', 'iOS', 'Android', 'JavaScript', 'Flexbox', 'Expo'];

export default function TagCloud() {
  return (
    <View style={styles.container}>
      {tags.map(tag => (
        <View key={tag} style={styles.tag}>
          <Text style={styles.tagText}>{tag}</Text>
        </View>
      ))}
    </View>
  );
}

const styles = StyleSheet.create({
  container: { flexDirection: 'row', flexWrap: 'wrap', gap: 8, padding: 16 },
  tag: { backgroundColor: '#e8f0fe', paddingHorizontal: 12, paddingVertical: 6, borderRadius: 16 },
  tagText: { color: '#4f86f7', fontSize: 13, fontWeight: '500' },
});

import { View, Text, TouchableOpacity, StyleSheet } from 'react-native';

export default function Header({ title, onBack, onMenu }) {
  return (
    <View style={styles.header}>
      <TouchableOpacity style={styles.sideBtn} onPress={onBack}>
        <Text style={styles.icon}>←</Text>
      </TouchableOpacity>

      <Text style={styles.title} numberOfLines={1}>{title}</Text>

      <TouchableOpacity style={styles.sideBtn} onPress={onMenu}>
        <Text style={styles.icon}>⋯</Text>
      </TouchableOpacity>
    </View>
  );
}

const styles = StyleSheet.create({
  header: {
    flexDirection: 'row',
    alignItems: 'center',
    paddingHorizontal: 16,
    paddingVertical: 12,
    backgroundColor: '#fff',
    borderBottomWidth: StyleSheet.hairlineWidth,
    borderBottomColor: '#ddd',
  },
  sideBtn: { width: 40, alignItems: 'center' },
  title: { flex: 1, fontSize: 18, fontWeight: '600', color: '#111', textAlign: 'center' },
  icon: { fontSize: 22, color: '#333' },
});

// Debug technique: color-code your Views temporarily
const debugStyles = StyleSheet.create({
  container: { flex: 1, backgroundColor: 'rgba(255,0,0,0.1)' }, // red tint
  inner: { backgroundColor: 'rgba(0,0,255,0.1)' },              // blue tint
  text: { backgroundColor: 'rgba(0,255,0,0.1)' },               // green tint
});

// Then you can see exactly where each View starts and ends
// Remove these debug colors before shipping!

import { View, Text, TouchableOpacity, StyleSheet } from 'react-native';

export default function SettingsRow({ icon, label, subtitle, onPress }) {
  return (
    <TouchableOpacity style={styles.row} onPress={onPress}>
      {/* Left: icon */}
      <View style={styles.iconContainer}>
        <Text style={{ fontSize: 22 }}>{icon}</Text>
      </View>

      {/* Middle: text content — flex: 1 fills space */}
      <View style={{ flex: 1 }}>
        <Text style={styles.label} numberOfLines={1}>{label}</Text>
        {subtitle && <Text style={styles.subtitle} numberOfLines={1}>{subtitle}</Text>}
      </View>

      {/* Right: chevron */}
      <Text style={styles.chevron}>›</Text>
    </TouchableOpacity>
  );
}

const styles = StyleSheet.create({
  row: { flexDirection: 'row', alignItems: 'center', paddingHorizontal: 16, paddingVertical: 12, backgroundColor: '#fff', gap: 12 },
  iconContainer: { width: 36, height: 36, borderRadius: 8, backgroundColor: '#f0f4ff', alignItems: 'center', justifyContent: 'center' },
  label: { fontSize: 16, color: '#222' },
  subtitle: { fontSize: 13, color: '#999', marginTop: 2 },
  chevron: { fontSize: 22, color: '#ccc', fontWeight: '300' },
});