回答編集履歴
3
onResume の追加により onCreate での初期設定は不要になるので, コメント化
test
CHANGED
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@@ -22,11 +22,11 @@
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22
22
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23
23
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24
24
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25
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-
SharedPreferences preference = PreferenceManager.getDefaultSharedPreferences(SetupActivity.this);
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25
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+
//SharedPreferences preference = PreferenceManager.getDefaultSharedPreferences(SetupActivity.this);
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26
26
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27
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-
boolean isChecked = preference.getBoolean(SWITCH1_PREFKEY, false);
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27
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+
//boolean isChecked = preference.getBoolean(SWITCH1_PREFKEY, false);
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28
28
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29
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-
switchButton.setChecked(isChecked);
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29
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+
//switchButton.setChecked(isChecked);
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30
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32
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2
getSharedPreferences() を削除
test
CHANGED
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@@ -22,7 +22,7 @@
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22
22
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23
23
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24
24
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25
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-
SharedPreferences preference = getSharedPreferences();
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25
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+
SharedPreferences preference = PreferenceManager.getDefaultSharedPreferences(SetupActivity.this);
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26
26
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27
27
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boolean isChecked = preference.getBoolean(SWITCH1_PREFKEY, false);
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28
28
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@@ -60,7 +60,7 @@
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60
60
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61
61
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62
62
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63
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-
SharedPreferences preference = getSharedPreferences();
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63
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+
SharedPreferences preference = PreferenceManager.getDefaultSharedPreferences(SetupActivity.this);
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64
64
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65
65
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SharedPreferences.Editor editor = preference.edit();
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66
66
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@@ -76,12 +76,6 @@
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76
76
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77
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}
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78
78
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79
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-
private SharedPreferences getSharedPreferences() {
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80
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-
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81
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-
return PreferenceManager.getDefaultSharedPreferences(SetupActivity.this);
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82
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-
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83
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-
}
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84
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-
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85
79
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```
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86
80
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87
81
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```java
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@@ -94,7 +88,7 @@
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94
88
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95
89
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final Switch switchButton = findViewById(R.id.switch1);
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96
90
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97
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-
SharedPreferences preference = getSharedPreferences();
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91
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+
SharedPreferences preference = PreferenceManager.getDefaultSharedPreferences(SetupActivity.this);
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98
92
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99
93
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boolean isChecked = preference.getBoolean(SWITCH1_PREFKEY, false);
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100
94
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1
onResume 追加
test
CHANGED
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@@ -83,3 +83,23 @@
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83
83
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}
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84
84
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85
85
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```
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86
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+
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87
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+
```java
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88
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+
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89
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+
@Override
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90
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+
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91
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+
protected void onResume() {
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92
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93
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+
super.onResume();
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94
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95
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+
final Switch switchButton = findViewById(R.id.switch1);
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96
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+
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97
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+
SharedPreferences preference = getSharedPreferences();
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98
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+
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99
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+
boolean isChecked = preference.getBoolean(SWITCH1_PREFKEY, false);
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100
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+
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101
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+
switchButton.setChecked(isChecked);
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102
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+
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103
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+
}
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104
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+
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105
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+
```
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