質問編集履歴
3
md
title
CHANGED
|
File without changes
|
body
CHANGED
|
@@ -156,7 +156,7 @@
|
|
|
156
156
|
```
|
|
157
157
|
|
|
158
158
|
---
|
|
159
|
-
|
|
159
|
+
__解決後Activity.kt__
|
|
160
160
|
```
|
|
161
161
|
// 登録
|
|
162
162
|
class Registration__Activity : AppCompatActivity() {
|
2
追記
title
CHANGED
|
File without changes
|
body
CHANGED
|
@@ -153,4 +153,64 @@
|
|
|
153
153
|
app:layout_constraintEnd_toEndOf="parent"
|
|
154
154
|
app:layout_constraintStart_toStartOf="parent" />
|
|
155
155
|
</androidx.constraintlayout.widget.ConstraintLayout>
|
|
156
|
+
```
|
|
157
|
+
|
|
158
|
+
---
|
|
159
|
+
*解決後Activity.kt*
|
|
160
|
+
```
|
|
161
|
+
// 登録
|
|
162
|
+
class Registration__Activity : AppCompatActivity() {
|
|
163
|
+
|
|
164
|
+
override fun onCreate(savedInstanceState: Bundle?) {
|
|
165
|
+
super.onCreate(savedInstanceState)
|
|
166
|
+
setContentView(R.layout.activity_registration__)
|
|
167
|
+
val SQLite__Helper = SQLite__Helper(this)
|
|
168
|
+
|
|
169
|
+
|
|
170
|
+
fun Context.showToast(text: CharSequence) =
|
|
171
|
+
Toast.makeText(this, text, Toast.LENGTH_SHORT).show()
|
|
172
|
+
// Toastを簡素化
|
|
173
|
+
|
|
174
|
+
|
|
175
|
+
itmAddBtn.setOnClickListener {
|
|
176
|
+
|
|
177
|
+
var itmNM : String? = edtNM.text.toString()
|
|
178
|
+
var itmPrc: String? = edtPrc.text.toString()
|
|
179
|
+
|
|
180
|
+
|
|
181
|
+
var itmStr: String
|
|
182
|
+
if (itmNM?.isNotBlank()!!){ //空白も含まない
|
|
183
|
+
itmStr = itmNM
|
|
184
|
+
}else{
|
|
185
|
+
showToast("名前を入力してください")
|
|
186
|
+
return@setOnClickListener
|
|
187
|
+
} //空白か未入力であればメッセージを表示
|
|
188
|
+
|
|
189
|
+
|
|
190
|
+
var itmInt: Int
|
|
191
|
+
when(itmPrc?.toIntOrNull()){ //Int型にキャストするか、nullにする
|
|
192
|
+
is Int-> {
|
|
193
|
+
itmInt = itmPrc.toInt()
|
|
194
|
+
} //その結果の型をInt
|
|
195
|
+
else-> {
|
|
196
|
+
showToast("数値を入力してください")
|
|
197
|
+
edtPrc.setText("")
|
|
198
|
+
return@setOnClickListener
|
|
199
|
+
} //そうでないかnullであればメッセージを表示
|
|
200
|
+
}
|
|
201
|
+
|
|
202
|
+
var itmInstance = ItmMdl(
|
|
203
|
+
itmStr, itmInt
|
|
204
|
+
)
|
|
205
|
+
|
|
206
|
+
var result = SQLite__Helper.insertItm(itmInstance)
|
|
207
|
+
|
|
208
|
+
if (result) {
|
|
209
|
+
showToast("商品登録！")
|
|
210
|
+
edtNM.setText("")
|
|
211
|
+
edtPrc.setText("")
|
|
212
|
+
}
|
|
213
|
+
}
|
|
214
|
+
}
|
|
215
|
+
}
|
|
156
216
|
```
|
1
追記
title
CHANGED
|
File without changes
|
body
CHANGED
|
@@ -80,4 +80,77 @@
|
|
|
80
80
|
}
|
|
81
81
|
}
|
|
82
82
|
}
|
|
83
|
+
```
|
|
84
|
+
レイアウトXML
|
|
85
|
+
```xml
|
|
86
|
+
<?xml version="1.0" encoding="utf-8"?>
|
|
87
|
+
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
|
|
88
|
+
xmlns:app="http://schemas.android.com/apk/res-auto"
|
|
89
|
+
xmlns:tools="http://schemas.android.com/tools"
|
|
90
|
+
android:layout_width="match_parent"
|
|
91
|
+
android:layout_height="match_parent"
|
|
92
|
+
tools:context=".Registration__Activity">
|
|
93
|
+
|
|
94
|
+
<TextView
|
|
95
|
+
android:id="@+id/textView"
|
|
96
|
+
android:layout_width="wrap_content"
|
|
97
|
+
android:layout_height="wrap_content"
|
|
98
|
+
android:layout_marginTop="24dp"
|
|
99
|
+
android:text="商品登録"
|
|
100
|
+
android:textSize="30sp"
|
|
101
|
+
app:layout_constraintEnd_toEndOf="parent"
|
|
102
|
+
app:layout_constraintStart_toStartOf="parent"
|
|
103
|
+
app:layout_constraintTop_toTopOf="parent" />
|
|
104
|
+
|
|
105
|
+
<EditText
|
|
106
|
+
android:id="@+id/edtNM"
|
|
107
|
+
android:layout_width="wrap_content"
|
|
108
|
+
android:layout_height="wrap_content"
|
|
109
|
+
android:layout_marginTop="100dp"
|
|
110
|
+
android:ems="10"
|
|
111
|
+
android:inputType="textPersonName"
|
|
112
|
+
app:layout_constraintEnd_toEndOf="parent"
|
|
113
|
+
app:layout_constraintStart_toStartOf="parent"
|
|
114
|
+
app:layout_constraintTop_toBottomOf="@+id/textView" />
|
|
115
|
+
|
|
116
|
+
<TextView
|
|
117
|
+
android:id="@+id/textView2"
|
|
118
|
+
android:layout_width="wrap_content"
|
|
119
|
+
android:layout_height="wrap_content"
|
|
120
|
+
android:layout_marginBottom="16dp"
|
|
121
|
+
android:text="商品名"
|
|
122
|
+
app:layout_constraintBottom_toTopOf="@+id/edtNM"
|
|
123
|
+
app:layout_constraintStart_toStartOf="@+id/edtNM" />
|
|
124
|
+
|
|
125
|
+
<EditText
|
|
126
|
+
android:id="@+id/edtPrc"
|
|
127
|
+
android:layout_width="wrap_content"
|
|
128
|
+
android:layout_height="wrap_content"
|
|
129
|
+
android:layout_marginTop="70dp"
|
|
130
|
+
android:ems="10"
|
|
131
|
+
android:inputType="numberDecimal"
|
|
132
|
+
app:layout_constraintEnd_toEndOf="parent"
|
|
133
|
+
app:layout_constraintStart_toStartOf="parent"
|
|
134
|
+
app:layout_constraintTop_toBottomOf="@+id/edtNM" />
|
|
135
|
+
|
|
136
|
+
<TextView
|
|
137
|
+
android:id="@+id/textView3"
|
|
138
|
+
android:layout_width="wrap_content"
|
|
139
|
+
android:layout_height="wrap_content"
|
|
140
|
+
android:layout_marginBottom="16dp"
|
|
141
|
+
android:text="値段"
|
|
142
|
+
app:layout_constraintBottom_toTopOf="@+id/edtPrc"
|
|
143
|
+
app:layout_constraintStart_toStartOf="@+id/edtPrc" />
|
|
144
|
+
|
|
145
|
+
<Button
|
|
146
|
+
android:id="@+id/itmAddBtn"
|
|
147
|
+
android:layout_width="wrap_content"
|
|
148
|
+
android:layout_height="wrap_content"
|
|
149
|
+
android:layout_marginBottom="50dp"
|
|
150
|
+
android:background="#FF9800"
|
|
151
|
+
android:text="商品登録"
|
|
152
|
+
app:layout_constraintBottom_toBottomOf="parent"
|
|
153
|
+
app:layout_constraintEnd_toEndOf="parent"
|
|
154
|
+
app:layout_constraintStart_toStartOf="parent" />
|
|
155
|
+
</androidx.constraintlayout.widget.ConstraintLayout>
|
|
83
156
|
```
|