質問編集履歴
1
内容の修正
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -75,3 +75,71 @@
|
|
|
75
75
|
この_downloadStrがnullではなくなったときに、プログレスバーを非表示にし、リサイクラービューを生成するフラグメントを表示したいのですが、Kotlinではどのように書くのでしょうか。
|
|
76
76
|
|
|
77
77
|
宜しくお願い致します。
|
|
78
|
+
|
|
79
|
+
|
|
80
|
+
|
|
81
|
+
### 追記
|
|
82
|
+
|
|
83
|
+
|
|
84
|
+
|
|
85
|
+
DownloadJsonData()の中身です。
|
|
86
|
+
|
|
87
|
+
|
|
88
|
+
|
|
89
|
+
```Kotlin
|
|
90
|
+
|
|
91
|
+
|
|
92
|
+
|
|
93
|
+
private inner class DownloadJsonData(): AsyncTask<String, String, String>() {
|
|
94
|
+
|
|
95
|
+
override fun doInBackground(vararg params: String?): String {
|
|
96
|
+
|
|
97
|
+
val urlStr = "https://api.myjson.com/bins/vxnji"
|
|
98
|
+
|
|
99
|
+
val url = URL(urlStr)
|
|
100
|
+
|
|
101
|
+
val con = url.openConnection() as HttpURLConnection
|
|
102
|
+
|
|
103
|
+
con.requestMethod = "GET"
|
|
104
|
+
|
|
105
|
+
con.connect()
|
|
106
|
+
|
|
107
|
+
val stream = con.inputStream
|
|
108
|
+
|
|
109
|
+
val sb = StringBuilder()
|
|
110
|
+
|
|
111
|
+
val reader = BufferedReader(InputStreamReader(stream, "UTF-8"))
|
|
112
|
+
|
|
113
|
+
var line = reader.readLine()
|
|
114
|
+
|
|
115
|
+
while(line != null) {
|
|
116
|
+
|
|
117
|
+
sb.append(line)
|
|
118
|
+
|
|
119
|
+
line = reader.readLine()
|
|
120
|
+
|
|
121
|
+
}
|
|
122
|
+
|
|
123
|
+
reader.close()
|
|
124
|
+
|
|
125
|
+
val result = sb.toString()
|
|
126
|
+
|
|
127
|
+
con.disconnect()
|
|
128
|
+
|
|
129
|
+
stream.close()
|
|
130
|
+
|
|
131
|
+
return result
|
|
132
|
+
|
|
133
|
+
}
|
|
134
|
+
|
|
135
|
+
|
|
136
|
+
|
|
137
|
+
override fun onPostExecute(result: String?) {
|
|
138
|
+
|
|
139
|
+
_downloadStr = result
|
|
140
|
+
|
|
141
|
+
}
|
|
142
|
+
|
|
143
|
+
|
|
144
|
+
|
|
145
|
+
```
|