エミュレーター起動時にアプリが落ちます。
エラーを見てみると
at SettingFragment.onCreatePreferences(SettingFragment.java:20)
部分がおかしいと言われています。
その部分は
Java
1public class SettingFragment extends PreferenceFragmentCompat{ 2 3 private FirebaseAnalytics FirebaseAnalytics; 4 5 @Override 6 public void onCreatePreferences(Bundle savedInstanceState, String s) { 7 addPreferencesFromResource(R.xml.pref); 8 9 FirebaseAnalytics = FirebaseAnalytics.getInstance(getContext()); 10 FirebaseAnalytics.logEvent("SettingFragment", null); 11 }
の中のaddPreferencesFromResource(R.xml.pref);の部分です。
preferenceThemeを自分のActivityのThemeに定義する必要があります。
Java
1style.xml 2<style name="SettingsTheme" parent="Theme.AppCompat.NoActionBar"> 3 <item name="preferenceTheme">@style/PreferenceThemeOverlay</item> 4</style>
と別のサイトhttp://qiita.com/wasnot/items/dfc33bb91f64abfec04c に書かれていましたが、
pref.xmlにpreferenceThemeを定義すればよいのでしょうか?さらにそのxmlにthemeでの指定が必要になるのでしょうか?
どのようにこのエラーを解決したらよいのでしょうか?
以下にエラーの詳細を記載します。
09-02 20:17:38.526 2726-2726/me.myreco.up E/AndroidRuntime: FATAL EXCEPTION: main
Process: me.myreco.up, PID: 2726
android.view.InflateException: Binary XML file line #20: Error inflating class (not found)PreferenceScree
at android.support.v7.preference.PreferenceInflater.createItemFromTag(PreferenceInflater.java:300)
at android.support.v7.preference.PreferenceInflater.rInflate(PreferenceInflater.java:358)
at android.support.v7.preference.PreferenceInflater.rInflate(PreferenceInflater.java:360)
at android.support.v7.preference.PreferenceInflater.inflate(PreferenceInflater.java:167)
at android.support.v7.preference.PreferenceInflater.inflate(PreferenceInflater.java:117)
at android.support.v7.preference.PreferenceManager.inflateFromResource(PreferenceManager.java:115)
at android.support.v7.preference.PreferenceFragmentCompat.addPreferencesFromResource(PreferenceFragmentCompat.java:366)
at me.myreco.up.SettingFragment.onCreatePreferences(SettingFragment.java:20)
at android.support.v7.preference.PreferenceFragmentCompat.onCreate(PreferenceFragmentCompat.java:210)
at android.support.v4.app.Fragment.performCreate(Fragment.java:1951)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1029)
at android.support.v4.app.FragmentManagerImpl.performPendingDeferredStart(FragmentManager.java:926)
at android.support.v4.app.Fragment.setUserVisibleHint(Fragment.java:876)
at android.support.v4.app.FragmentStatePagerAdapter.setPrimaryItem(FragmentStatePagerAdapter.java:153)
at android.support.v4.view.ViewPager.populate(ViewPager.java:1175)
at android.support.v4.view.ViewPager.setCurrentItemInternal(ViewPager.java:608)
at android.support.v4.view.ViewPager.setCurrentItemInternal(ViewPager.java:570)
at android.support.v4.view.ViewPager.setCurrentItem(ViewPager.java:551)
at android.support.design.widget.TabLayout$ViewPagerOnTabSelectedListener.onTabSelected(TabLayout.java:2008)
at android.support.design.widget.TabLayout.selectTab(TabLayout.java:1025)
at android.support.design.widget.TabLayout.selectTab(TabLayout.java:995)
at android.support.design.widget.TabLayout$Tab.select(TabLayout.java:1272)
at android.support.design.widget.TabLayout$TabView.performClick(TabLayout.java:1377)
at android.view.View$PerformClick.run(View.java:21147)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v7.preference.PreferenceScree" on path: DexPathList[[zip file "/data/app/me.myreco.up-2/base.apk"],nativeLibraryDirectories=[/data/app/me.myreco.up-2/lib/x86, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
Suppressed: java.lang.ClassNotFoundException: Didn't find class "android.support.v7.preference.PreferenceScree" on path: DexPathList[[dex file "/data/data/me.myreco.up/files/instant-run/dex/slice-twitter-text-1.13.0_1747ea61a79eb9fda5bf6daf251c5bc1e194e6d8-classes.dex", dex file "/data/data/me.myreco.up/files/instant-run/dex/slice-support-annotations-23.2.1_fa03c9e44c8ebf470e1567c0d4f73d89dd160991-classes.dex", dex file "/data/data/me.myreco.up/files/instant-run/dex/slice-stetho-okhttp3-1.3.0_dfe4e1df720596744eb550e7e79f36d8857dbcf0-classes.dex", dex file "/data/data/me.myreco.up/files/instant-run/dex/slice-stetho-1.3.0_843c3e67fb1bfc
イベントログには
20:14:28 Executing tasks: [:app:clean, :app:generateDebugSources, :app:mockableAndroidJar, :app:prepareDebugUnitTestDependencies, :app:generateDebugAndroidTestSources, :app:assembleDebug]
20:17:51 Gradle build finished in 3m 22s 504ms
20:19:31 Throwable: Assertion failed: Negative offet for crumb: PreferenceScree
20:19:33 Throwable: Assertion failed: Negative offet for crumb: PreferenceScree
20:19:39 Throwable: Assertion failed: Negative offet for crumb: PreferenceScree
20:20:49 Throwable: Assertion failed: Negative offet for crumb: PreferenceScree
と書いてありました。
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