質問編集履歴
3
notificationを使ったやり方に変更
test
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File without changes
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test
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@@ -121,3 +121,83 @@
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121
121
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}
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122
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```
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124
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125
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126
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127
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///notificationを使ったやり方に変更///
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128
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129
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130
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131
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+
```swift
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132
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+
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133
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func didChangeNotification(notification: Notification) {
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134
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135
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var noEmptyTextField = true
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136
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+
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137
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+
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138
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+
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139
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+
if let textField = notification.object as? UITextField {
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140
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+
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141
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switch textField.tag {
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142
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+
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143
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+
case CellTag.name.rawValue:
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144
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+
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145
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if let text = textField.text, !text.isEmpty {
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146
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+
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147
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noEmptyTextField = true
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148
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+
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149
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} else {
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150
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+
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151
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noEmptyTextField = false
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152
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+
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153
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}
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154
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+
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155
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+
case CellTag.category.rawValue:
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156
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+
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157
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+
if let text = textField.text, !text.isEmpty {
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158
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+
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159
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noEmptyTextField = true
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160
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+
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161
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} else {
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162
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+
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163
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+
noEmptyTextField = false
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164
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+
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165
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+
}
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166
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+
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167
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+
case CellTag.price.rawValue:
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168
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+
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169
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+
if let text = textField.text, !text.isEmpty {
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170
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+
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171
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+
noEmptyTextField = true
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172
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+
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173
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} else {
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174
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+
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175
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noEmptyTextField = false
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176
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+
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177
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+
}
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178
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+
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179
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+
default:
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180
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+
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181
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break
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182
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+
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183
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+
}
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184
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+
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185
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+
}
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186
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+
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187
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+
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188
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+
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189
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+
if noEmptyTextField {
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190
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+
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191
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+
self.navigationItem.rightBarButtonItem?.isEnabled = true
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192
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+
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193
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+
} else {
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194
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+
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195
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+
self.navigationItem.rightBarButtonItem?.isEnabled = false
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196
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+
|
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197
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+
}
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198
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+
|
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199
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}
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200
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+
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201
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+
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202
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+
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203
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+
```
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2
タイトル編集
test
CHANGED
|
@@ -1 +1 @@
|
|
|
1
|
-
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1
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+
全てのTextFieldが空の時を判別したい
|
test
CHANGED
|
File without changes
|
1
回答を受けての追記
test
CHANGED
|
@@ -1 +1 @@
|
|
|
1
|
-
|
|
1
|
+
かい
|
test
CHANGED
|
@@ -63,3 +63,61 @@
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|
63
63
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どうすれば入力と同時にtextfieldが空なのかどうかを判別することができるでしょうか？
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|
64
64
|
|
|
65
65
|
どなたかわかる方がいれば教えていただきたいです。よろしくお願いします。
|
|
66
|
+
|
|
67
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+
|
|
68
|
+
|
|
69
|
+
///回答を受けての追記///
|
|
70
|
+
|
|
71
|
+
|
|
72
|
+
|
|
73
|
+
```swift
|
|
74
|
+
|
|
75
|
+
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
|
|
76
|
+
|
|
77
|
+
let newText = (textField.text as! NSString).replacingCharacters(in: range, with: string)
|
|
78
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+
|
|
79
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+
|
|
80
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+
|
|
81
|
+
let filledTextFieldCells = self.tableView.visibleCells.filter {
|
|
82
|
+
|
|
83
|
+
if let cell = $0 as? Checkable {
|
|
84
|
+
|
|
85
|
+
return cell.isFilledTextField(text: newText)
|
|
86
|
+
|
|
87
|
+
} else {
|
|
88
|
+
|
|
89
|
+
return false
|
|
90
|
+
|
|
91
|
+
}
|
|
92
|
+
|
|
93
|
+
}
|
|
94
|
+
|
|
95
|
+
if filledTextFieldCells.count == 0 {
|
|
96
|
+
|
|
97
|
+
self.navigationItem.rightBarButtonItem?.isEnabled = false
|
|
98
|
+
|
|
99
|
+
} else {
|
|
100
|
+
|
|
101
|
+
self.navigationItem.rightBarButtonItem?.isEnabled = true
|
|
102
|
+
|
|
103
|
+
}
|
|
104
|
+
|
|
105
|
+
|
|
106
|
+
|
|
107
|
+
return true
|
|
108
|
+
|
|
109
|
+
}
|
|
110
|
+
|
|
111
|
+
|
|
112
|
+
|
|
113
|
+
extension Checkable {
|
|
114
|
+
|
|
115
|
+
func isFilledTextField(text: String) -> Bool {
|
|
116
|
+
|
|
117
|
+
return !text.isEmpty ? true : false
|
|
118
|
+
|
|
119
|
+
}
|
|
120
|
+
|
|
121
|
+
}
|
|
122
|
+
|
|
123
|
+
```
|