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トップに関する質問fragment同士の値の受け渡し(android.java)

編集履歴

質問編集履歴

4

コード追加

2019/11/20 03:36

投稿

退会済みユーザー
title CHANGED
File without changes
body CHANGED
@@ -38,13 +38,34 @@
38
38
  fragment1.java
39
39
  ```java
40
40
 
41
+ public class MainFragment extends Fragment {
42
+
43
+ public static final String Gtai12 = "person_id";
44
+ //public static final String EXTRA_MODE_ID = "mode_id";
45
+
46
+
47
+ fragment2 fragment02 = new fragment2();
48
+
49
+
50
+ private MainViewModel mViewModel;
51
+
41
- public static MainFragment newInstance() {
52
+ public static MainFragment newInstance() {
42
53
  return new MainFragment();
43
54
  }
55
+
56
+ @Nullable
44
- @Override
57
+ @Override
58
+ public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container,
59
+ @Nullable Bundle savedInstanceState) {
60
+ return inflater.inflate(R.layout.main_fragment, container, false);
61
+ }
62
+
63
+ @Override
45
64
  public void onViewCreated(@NonNull View view, Bundle savedInstanceState) {
46
65
  super.onViewCreated(view, savedInstanceState);
47
66
 
67
+
68
+
48
69
  Bundle args = getArguments();
49
70
 
50
71
  Button button01 = view.findViewById(R.id.button);
@@ -66,23 +87,44 @@
66
87
  }
67
88
  }
68
89
  });
69
- }
90
+ }
70
91
 
71
- @Override
92
+ @Override
72
93
  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
73
94
  super.onActivityCreated(savedInstanceState);
74
95
  mViewModel = ViewModelProviders.of(this).get(MainViewModel.class);
75
96
  // TODO: Use the ViewModel
76
97
  }
77
98
 
99
+ }
100
+
78
101
  ```
79
102
 
80
103
  fragment2.java
81
104
 
82
105
  ```java
106
+
83
107
  public class fragment2 extends Fragment {
84
108
 
109
+ private int cnt = 0;
85
110
 
111
+ private String gtai;
112
+ //入力されたやつを数値に変えた体重
113
+ private double tai;
114
+ private double bmi;
115
+
116
+ private String s;
117
+
118
+ double shin = 150.2;
119
+ //double tai = 50.8;
120
+ double mtai = 58.0;
121
+
122
+ Calendar cal = Calendar.getInstance();
123
+ int month = cal.get(Calendar.MONTH) + 1;
124
+
125
+ double shinm = shin / 100;
126
+ double shinm2 = shinm * shinm;
127
+
86
128
  public static fragment2 newInstance(int count) {
87
129
  // Fragemnt02 インスタンス生成
88
130
  fragment2 fragment02 = new fragment2();
@@ -95,12 +137,12 @@
95
137
  return fragment02;
96
138
  }
97
139
 
98
- // FragmentのViewを生成して返す
140
+ // FragmentのViewを生成して返す
99
141
  @Override
100
142
  public View onCreateView(@NonNull LayoutInflater inflater,
101
143
  ViewGroup container,
102
- Bundle savedInstanceState){
144
+ Bundle savedInstanceState) {
103
- View wf = inflater.inflate(R.layout.fragment, container, false);
145
+ View wf = inflater.inflate(R.layout.fragment, container, false);
104
146
 
105
147
  // 画面回転時にFragmentの再生成を禁止
106
148
  setRetainInstance(true);
@@ -111,21 +153,72 @@
111
153
  return wf;
112
154
  }
113
155
 
114
- @Override
156
+ @Override
115
157
  public void onViewCreated(@NonNull View view, Bundle savedInstanceState) {
116
158
  super.onViewCreated(view, savedInstanceState);
117
159
 
118
160
  final TextView reserve_2c_text = getActivity().findViewById(R.id.textView);
161
+ // R.id.textviewはフラグメント1内の書き込みたいセルのid
119
- Bundle args = getArguments();
162
+ //fragment.xml には　textview はつけてない
120
163
 
164
+ Bundle args = getArguments();
165
+
166
+ /*@Override
167
+ public void onStart() {
168
+ super.onStart();*/
121
- Button bu1 = (Button) getActivity().findViewById(R.id.button2);
169
+ Button bu1 = (Button) getActivity().findViewById(R.id.button2);
170
+
122
171
  bu1.setOnClickListener(new View.OnClickListener(){
172
+ @Override
173
+ public void onClick(View view){
123
- EditText ked = (EditText) getActivity().findViewById(R.id.editText);
174
+ EditText ked = (EditText) getActivity().findViewById(R.id.editText);
124
- @Override
125
- public void onClick(View view){
175
+ EditText mted = (EditText) getActivity().findViewById(R.id.editText2);
176
+ EditText ted = (EditText) getActivity().findViewById(R.id.editText3);
126
177
 
178
+ //今は月単位の指定しかできない
179
+ //入力値を文字列から数値へ　数値から文字列へして表示
180
+ String kikan = ked.getText().toString();
181
+ String mtai = mted.getText().toString();
127
- reserve_2c_text.setText("");
182
+ gtai = ted.getText().toString();
183
+ Toast.makeText(getActivity(), "click", Toast.LENGTH_SHORT).show();
184
+ if (kikan.length() != 0) {
185
+ int i = Integer.parseInt(kikan);
186
+ int mki = month + i;
187
+ if (mki > 12) {
188
+ mki -= 12;
189
+ }
190
+ s = String.valueOf(mki);
191
+ ked.getEditableText().clear();
192
+ }else{
128
193
 
194
+ }
195
+
196
+ if (mtai.length() != 0) {
197
+ mted.getEditableText().clear();
198
+
199
+ }
200
+
201
+ if(gtai.length() != 0){
202
+ tai = Double.parseDouble(gtai);
203
+ bmi = tai / shinm2;
204
+ ted.getEditableText().clear();
205
+ }
206
+
207
+ // ここでフラグメント1にあるテーブル内のセルに値を書き込んでいる
208
+ reserve_2c_text.setText("現在の体重" + gtai);
209
+ }
210
+ });
211
+ }
212
+ /*
213
+ private void showPerson(String personId) {
214
+ Intent intent = new Intent(fragment2.this,MainFragment.);
215
+ intent.putExtra(MainFragment.Gtai12, personId);
216
+ // intent.putExtra(PersonActivity.EXTRA_MODE_ID, MODE_PRIVACY);
217
+ // ^^^if needed^^^
218
+ startActivity(intent);
219
+ }*/
220
+ }
221
+
129
222
  ```
130
223
 
131
224
  ### 試したこと

3

文章の変更

2019/11/20 03:36

投稿

退会済みユーザー
title CHANGED
File without changes
body CHANGED
@@ -37,8 +37,13 @@
37
37
 
38
38
  fragment1.java
39
39
  ```java
40
+
41
+ public static MainFragment newInstance() {
42
+ return new MainFragment();
43
+ }
40
44
  @Override
41
- public void onViewCreated(～～
45
+ public void onViewCreated(@NonNull View view, Bundle savedInstanceState) {
46
+ super.onViewCreated(view, savedInstanceState);
42
47
 
43
48
  Bundle args = getArguments();
44
49
 
@@ -61,7 +66,15 @@
61
66
  }
62
67
  }
63
68
  });
69
+ }
64
70
 
71
+ @Override
72
+ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
73
+ super.onActivityCreated(savedInstanceState);
74
+ mViewModel = ViewModelProviders.of(this).get(MainViewModel.class);
75
+ // TODO: Use the ViewModel
76
+ }
77
+
65
78
  ```
66
79
 
67
80
  fragment2.java
@@ -84,7 +97,10 @@
84
97
 
85
98
  // FragmentのViewを生成して返す
86
99
  @Override
87
- public View onCreateView(～～～～
100
+ public View onCreateView(@NonNull LayoutInflater inflater,
101
+ ViewGroup container,
102
+ Bundle savedInstanceState){
103
+ View wf = inflater.inflate(R.layout.fragment, container, false);
88
104
 
89
105
  // 画面回転時にFragmentの再生成を禁止
90
106
  setRetainInstance(true);
@@ -96,7 +112,8 @@
96
112
  }
97
113
 
98
114
  @Override
99
- public void onViewCreated(～～～
115
+ public void onViewCreated(@NonNull View view, Bundle savedInstanceState) {
116
+ super.onViewCreated(view, savedInstanceState);
100
117
 
101
118
  final TextView reserve_2c_text = getActivity().findViewById(R.id.textView);
102
119
  Bundle args = getArguments();
@@ -125,4 +142,5 @@
125
142
 
126
143
  ### 補足情報（FW/ツールのバージョンなど）
127
144
 
128
- ここにより詳細な情報を記載してください。
145
+ android studio Version 3.5
146
+ 選んだものは　Fragment + ViewModel かと思います

2

文章の変更

2019/11/20 03:11

投稿

退会済みユーザー
title CHANGED
File without changes
body CHANGED
@@ -35,10 +35,8 @@
35
35
 
36
36
  ### 該当のソースコード
37
37
 
38
+ fragment1.java
38
39
  ```java
39
- fragment1.java
40
- ```
41
-
42
40
  @Override
43
41
  public void onViewCreated(～～
44
42
 
@@ -64,12 +62,11 @@
64
62
  }
65
63
  });
66
64
 
65
+ ```
67
66
 
67
+ fragment2.java
68
68
 
69
69
  ```java
70
- fragment2.java
71
- ```
72
-
73
70
  public class fragment2 extends Fragment {
74
71
 
75
72
 
@@ -111,8 +108,9 @@
111
108
  public void onClick(View view){
112
109
 
113
110
  reserve_2c_text.setText("");
114
- ～～～～
115
111
 
112
+ ```
113
+
116
114
  ### 試したこと
117
115
 
118
116
  値の受け渡しにこちらにあった過去の質問の

1

文章の編集

2019/11/20 02:56

投稿

退会済みユーザー
title CHANGED
File without changes
body CHANGED
@@ -35,13 +35,10 @@
35
35
 
36
36
  ### 該当のソースコード
37
37
 
38
- ```ここに言語名を入力
39
- java
38
+ ```java
39
+ fragment1.java
40
40
  ```
41
41
 
42
-
43
- fragment1.java
44
-
45
42
  @Override
46
43
  public void onViewCreated(～～
47
44
 
@@ -69,7 +66,9 @@
69
66
 
70
67
 
71
68
 
69
+ ```java
72
70
  fragment2.java
71
+ ```
73
72
 
74
73
  public class fragment2 extends Fragment {
75
74