質問編集履歴
2
AndroidManifest\.xmlの追記
test
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File without changes
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test
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@@ -319,3 +319,59 @@
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}
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```
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■AndroidManifest.xml
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```xml
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<?xml version="1.0" encoding="utf-8"?>
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330
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.example.kmatsumaru.myapp_fragment">
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335
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336
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<application
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338
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android:allowBackup="true"
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340
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android:icon="@mipmap/ic_launcher"
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342
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android:label="@string/app_name"
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android:supportsRtl="true"
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346
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android:theme="@style/AppTheme">
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<activity
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350
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+
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351
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android:name=".MainActivity"
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352
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android:label="@string/app_name"
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355
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android:theme="@style/AppTheme.NoActionBar">
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356
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357
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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360
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361
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362
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<category android:name="android.intent.category.LAUNCHER" />
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364
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+
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365
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</intent-filter>
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366
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367
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</activity>
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368
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369
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</application>
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370
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371
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372
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373
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</manifest>
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374
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+
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375
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376
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+
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377
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```
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1
エラーログの追記
test
CHANGED
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File without changes
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test
CHANGED
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@@ -18,6 +18,70 @@
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18
18
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19
19
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20
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21
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■エラーログ
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22
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+
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23
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04-06 04:12:34.168 1559-1559/? E/AndroidRuntime: FATAL EXCEPTION: main
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24
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+
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25
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java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.myapp_fragment/com.example.myapp_fragment.MainActivity}: java.lang.NullPointerException
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26
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+
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27
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+
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2211)
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28
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+
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29
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at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
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30
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+
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31
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+
at android.app.ActivityThread.access$600(ActivityThread.java:141)
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32
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+
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33
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+
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
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34
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+
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35
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+
at android.os.Handler.dispatchMessage(Handler.java:99)
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36
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+
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37
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+
at android.os.Looper.loop(Looper.java:137)
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38
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+
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39
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+
at android.app.ActivityThread.main(ActivityThread.java:5103)
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40
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+
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41
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+
at java.lang.reflect.Method.invokeNative(Native Method)
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42
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+
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43
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at java.lang.reflect.Method.invoke(Method.java:525)
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44
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+
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45
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+
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
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46
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+
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47
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+
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
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48
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+
|
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49
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+
at dalvik.system.NativeStart.main(Native Method)
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50
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+
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51
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+
Caused by: java.lang.NullPointerException
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52
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+
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53
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+
at com.example.myapp_fragment.MainActivity.onCreate(MainActivity.java:22)
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54
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+
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55
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+
at android.app.Activity.performCreate(Activity.java:5133)
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56
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+
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57
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+
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
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58
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+
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59
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+
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2175)
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60
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+
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61
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+
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
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62
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+
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63
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+
at android.app.ActivityThread.access$600(ActivityThread.java:141)
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|
64
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+
|
|
65
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+
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
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66
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+
|
|
67
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+
at android.os.Handler.dispatchMessage(Handler.java:99)
|
|
68
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+
|
|
69
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+
at android.os.Looper.loop(Looper.java:137)
|
|
70
|
+
|
|
71
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+
at android.app.ActivityThread.main(ActivityThread.java:5103)
|
|
72
|
+
|
|
73
|
+
at java.lang.reflect.Method.invokeNative(Native Method)
|
|
74
|
+
|
|
75
|
+
at java.lang.reflect.Method.invoke(Method.java:525)
|
|
76
|
+
|
|
77
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+
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
|
|
78
|
+
|
|
79
|
+
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
|
|
80
|
+
|
|
81
|
+
at dalvik.system.NativeStart.main(Native Method)
|
|
82
|
+
|
|
83
|
+
|
|
84
|
+
|
|
21
85
|
■MainActivity
|
|
22
86
|
|
|
23
87
|
```java
|