質問編集履歴
5
更新
test
CHANGED
File without changes
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test
CHANGED
@@ -6,13 +6,25 @@
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6
6
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7
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public class Myapplication {
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-
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9
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+
public static void main(String[] args) {
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-
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try {
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-
x=
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public int x = 0;
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while(true){
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x= x+1;
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-
}
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}
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}catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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4
変更
test
CHANGED
@@ -1 +1 @@
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1
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-
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1
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+
ループ中の変数を共有する
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test
CHANGED
@@ -4,55 +4,15 @@
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4
4
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5
5
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```java
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6
6
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7
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-
public class Myapplication
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7
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+
public class Myapplication {
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8
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public int x = 0;
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10
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-
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while(true){
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x= x+1;
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-
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public void start() {
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thread = new Thread(this);
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thread.setDaemon(true);
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-
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thread.start();
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-
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-
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+
}
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-
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25
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-
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-
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-
public void stop() {
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thread.interrupt();
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-
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thread = null;
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-
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}
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-
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-
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-
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-
@Override
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-
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-
public void run() {
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-
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try {
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for (;;) {
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Thread.sleep(100);
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x++;
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-
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}
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-
} catch (InterruptedException e) {
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-
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}
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-
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55
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-
}
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16
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}
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@@ -102,43 +62,11 @@
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102
62
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103
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public void onClick(View view) {
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105
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-
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+
textView.setText(app.x);
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}
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68
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109
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-
});
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+
});
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-
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111
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-
textView.setText(app.x);
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-
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113
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-
}
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114
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-
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115
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-
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116
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-
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117
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-
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118
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-
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119
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-
@Override
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120
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-
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121
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-
public void onResume() {
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122
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-
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123
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-
super.onResume();
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124
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-
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125
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-
app = new Myapplication();
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-
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127
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-
app.start();
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-
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129
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-
}
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130
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-
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131
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-
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-
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133
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-
@Override
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134
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-
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135
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-
public void onPause() {
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-
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137
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-
super.onPause();
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138
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-
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139
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-
app.stop();
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-
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141
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-
app = null;
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142
70
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|
143
71
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}
|
144
72
|
|
3
変更
test
CHANGED
@@ -1 +1 @@
|
|
1
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-
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1
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+
他クラスからMainActivityの値の受け渡し
|
test
CHANGED
@@ -108,6 +108,8 @@
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108
108
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|
109
109
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});
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110
110
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111
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+
textView.setText(app.x);
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+
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113
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}
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112
114
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113
115
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@@ -146,7 +148,7 @@
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146
148
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|
147
149
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```
|
148
150
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149
|
-
このコードのxの値を他のクラス(例えばMainActivity)で
|
151
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+
このコードのxの値を他のクラス(例えばMainActivity)でxの値を獲得したいのですが調べても具体的に使われているものを見つけられませんでした。
|
150
152
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|
151
153
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|
152
154
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|
2
更新
test
CHANGED
File without changes
|
test
CHANGED
@@ -4,19 +4,51 @@
|
|
4
4
|
|
5
5
|
```java
|
6
6
|
|
7
|
-
public class My
|
7
|
+
public class Myapplication implements Runnable {
|
8
8
|
|
9
|
-
int x=0;
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9
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+
public int x = 0;
|
10
10
|
|
11
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-
|
11
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+
Thread thread;
|
12
12
|
|
13
|
-
public void test()
|
14
13
|
|
15
|
-
{
|
16
14
|
|
17
|
-
|
15
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+
public void start() {
|
18
16
|
|
17
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+
thread = new Thread(this);
|
18
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+
|
19
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+
thread.setDaemon(true);
|
20
|
+
|
21
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+
thread.start();
|
22
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+
|
23
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+
}
|
24
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+
|
25
|
+
|
26
|
+
|
27
|
+
public void stop() {
|
28
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+
|
29
|
+
thread.interrupt();
|
30
|
+
|
31
|
+
thread = null;
|
32
|
+
|
33
|
+
}
|
34
|
+
|
35
|
+
|
36
|
+
|
37
|
+
@Override
|
38
|
+
|
39
|
+
public void run() {
|
40
|
+
|
41
|
+
try {
|
42
|
+
|
19
|
-
|
43
|
+
for (;;) {
|
44
|
+
|
45
|
+
Thread.sleep(100);
|
46
|
+
|
47
|
+
x++;
|
48
|
+
|
49
|
+
}
|
50
|
+
|
51
|
+
} catch (InterruptedException e) {
|
20
52
|
|
21
53
|
}
|
22
54
|
|
@@ -34,6 +66,12 @@
|
|
34
66
|
|
35
67
|
import android.os.Bundle;
|
36
68
|
|
69
|
+
import android.util.Log;
|
70
|
+
|
71
|
+
import android.view.View;
|
72
|
+
|
73
|
+
import android.widget.Button;
|
74
|
+
|
37
75
|
import android.widget.TextView;
|
38
76
|
|
39
77
|
|
@@ -41,10 +79,6 @@
|
|
41
79
|
public class MainActivity extends AppCompatActivity {
|
42
80
|
|
43
81
|
Myapplication app;
|
44
|
-
|
45
|
-
String s;
|
46
|
-
|
47
|
-
|
48
82
|
|
49
83
|
|
50
84
|
|
@@ -56,21 +90,59 @@
|
|
56
90
|
|
57
91
|
setContentView(R.layout.activity_main);
|
58
92
|
|
93
|
+
Button button = findViewById(R.id.button);
|
94
|
+
|
59
95
|
TextView textView = findViewById(R.id.text_view);
|
96
|
+
|
97
|
+
|
98
|
+
|
99
|
+
button.setOnClickListener(new View.OnClickListener() {
|
100
|
+
|
101
|
+
@Override
|
102
|
+
|
103
|
+
public void onClick(View view) {
|
104
|
+
|
105
|
+
Log.d("debug", "x=" + app.x);
|
106
|
+
|
107
|
+
}
|
108
|
+
|
109
|
+
});
|
110
|
+
|
111
|
+
}
|
112
|
+
|
113
|
+
|
114
|
+
|
115
|
+
|
116
|
+
|
117
|
+
@Override
|
118
|
+
|
119
|
+
public void onResume() {
|
120
|
+
|
121
|
+
super.onResume();
|
60
122
|
|
61
123
|
app = new Myapplication();
|
62
124
|
|
63
|
-
|
125
|
+
app.start();
|
64
126
|
|
65
|
-
s = Integer.toString(x);
|
66
|
-
|
67
|
-
|
127
|
+
}
|
68
128
|
|
69
129
|
|
130
|
+
|
131
|
+
@Override
|
132
|
+
|
133
|
+
public void onPause() {
|
134
|
+
|
135
|
+
super.onPause();
|
136
|
+
|
137
|
+
app.stop();
|
138
|
+
|
139
|
+
app = null;
|
70
140
|
|
71
141
|
}
|
72
142
|
|
73
143
|
}
|
144
|
+
|
145
|
+
|
74
146
|
|
75
147
|
```
|
76
148
|
|
1
更新
test
CHANGED
File without changes
|
test
CHANGED
@@ -28,6 +28,52 @@
|
|
28
28
|
|
29
29
|
|
30
30
|
|
31
|
+
```java
|
32
|
+
|
33
|
+
import android.support.v7.app.AppCompatActivity;
|
34
|
+
|
35
|
+
import android.os.Bundle;
|
36
|
+
|
37
|
+
import android.widget.TextView;
|
38
|
+
|
39
|
+
|
40
|
+
|
41
|
+
public class MainActivity extends AppCompatActivity {
|
42
|
+
|
43
|
+
Myapplication app;
|
44
|
+
|
45
|
+
String s;
|
46
|
+
|
47
|
+
|
48
|
+
|
49
|
+
|
50
|
+
|
51
|
+
@Override
|
52
|
+
|
53
|
+
protected void onCreate(Bundle savedInstanceState) {
|
54
|
+
|
55
|
+
super.onCreate(savedInstanceState);
|
56
|
+
|
57
|
+
setContentView(R.layout.activity_main);
|
58
|
+
|
59
|
+
TextView textView = findViewById(R.id.text_view);
|
60
|
+
|
61
|
+
app = new Myapplication();
|
62
|
+
|
63
|
+
int x = app.x;
|
64
|
+
|
65
|
+
s = Integer.toString(x);
|
66
|
+
|
67
|
+
textView.setText(s);
|
68
|
+
|
69
|
+
|
70
|
+
|
71
|
+
}
|
72
|
+
|
73
|
+
}
|
74
|
+
|
75
|
+
```
|
76
|
+
|
31
77
|
このコードのxの値を他のクラス(例えばMainActivity)で使うためにcontextを使ってxの値を獲得したいのですが調べても具体的に使われているものを見つけられませんでした。
|
32
78
|
|
33
79
|
|