「Android/PreferenceFragmentCompat」の版間の差分
提供: 初心者エンジニアの簡易メモ
(→inconvertible types; cannnot cast Preferenceエラーが出る場合) |
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(同じ利用者による、間の14版が非表示) | |||
行4: | 行4: | ||
[[android/Fragment]] [ショートカット] | [[android/Fragment]] [ショートカット] | ||
− | == | + | ==PreferenceFragmentCompatを追加== |
build.gradleに以下を追加 | build.gradleに以下を追加 | ||
行19: | 行19: | ||
import android.os.Bundle; | import android.os.Bundle; | ||
− | import com.kaji.fragmentmyapplication.ui.main. | + | import com.kaji.fragmentmyapplication.ui.main.PrefsFragment; |
public class MainActivity extends AppCompatActivity { | public class MainActivity extends AppCompatActivity { | ||
行29: | 行29: | ||
if (savedInstanceState == null) { | if (savedInstanceState == null) { | ||
getSupportFragmentManager().beginTransaction() | getSupportFragmentManager().beginTransaction() | ||
− | .replace(R.id.container, | + | .replace(R.id.container, PrefsFragment.newInstance()) |
.commitNow(); | .commitNow(); | ||
} | } | ||
行41: | 行41: | ||
import android.content.SharedPreferences; | import android.content.SharedPreferences; | ||
import android.os.Bundle; | import android.os.Bundle; | ||
− | |||
− | |||
− | |||
import android.support.v7.preference.PreferenceFragmentCompat; | import android.support.v7.preference.PreferenceFragmentCompat; | ||
+ | import android.support.v7.preference.Preference; | ||
+ | import android.support.v7.preference.EditTextPreference; | ||
+ | import android.support.v7.preference.PreferenceScreen; | ||
import com.kaji.fragmentmyapplication.R; | import com.kaji.fragmentmyapplication.R; | ||
public class PrefsFragment extends PreferenceFragmentCompat { | public class PrefsFragment extends PreferenceFragmentCompat { | ||
− | + | private EditTextPreference editTextPreference; | |
− | + | ||
− | private EditTextPreference | + | |
− | + | ||
− | + | ||
public static PrefsFragment newInstance() { | public static PrefsFragment newInstance() { | ||
return new PrefsFragment(); | return new PrefsFragment(); | ||
行60: | 行56: | ||
public void onCreatePreferences(Bundle bundle, String s) { | public void onCreatePreferences(Bundle bundle, String s) { | ||
setPreferencesFromResource(R.xml.preferences, s); | setPreferencesFromResource(R.xml.preferences, s); | ||
+ | |||
+ | editTextPreference = (EditTextPreference)findPreference("editTextId"); | ||
+ | if (editTextPreference.getText() == null || editTextPreference.getText().length() < 1) { | ||
+ | editTextPreference.setSummary(getResources().getString(R.string.edit_text_hint)); | ||
+ | } else { | ||
+ | editTextPreference.setSummary(editTextPreference.getText()); | ||
+ | } | ||
+ | editTextPreference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() { | ||
+ | @Override | ||
+ | public boolean onPreferenceClick(Preference preference) { | ||
+ | EditTextPreference editPref = (EditTextPreference)preference; | ||
+ | if (editPref.getText() != null) { | ||
+ | editPref.setText(editPref.getText()); | ||
+ | } | ||
+ | return true; | ||
+ | } | ||
+ | }); | ||
+ | editTextPreference.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() { | ||
+ | @Override | ||
+ | public boolean onPreferenceChange(Preference preference, | ||
+ | Object newValue) { | ||
+ | EditTextPreference editPref = (EditTextPreference)preference; | ||
+ | editPref.setSummary(newValue.toString()); | ||
+ | return true; | ||
+ | } | ||
+ | }); | ||
+ | // imageのPreferenceScreenをクリックしたとき | ||
+ | PreferenceScreen imagePreference = (PreferenceScreen)getPreferenceScreen().findPreference("image"); | ||
+ | imagePreference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() { | ||
+ | public boolean onPreferenceClick(Preference preference) { | ||
+ | //Intent intent = new Intent(getContext(), HogehogeActivity.class); | ||
+ | //startActivity(intent); | ||
+ | return true; | ||
+ | } | ||
+ | }); | ||
} | } | ||
} | } | ||
+ | </pre> | ||
+ | |||
+ | res/layout/main_activity.xml | ||
+ | <pre> | ||
+ | <?xml version="1.0" encoding="utf-8"?> | ||
+ | <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" | ||
+ | xmlns:tools="http://schemas.android.com/tools" | ||
+ | android:id="@+id/container" | ||
+ | android:layout_width="match_parent" | ||
+ | android:layout_height="match_parent" | ||
+ | tools:context=".MainActivity" /> | ||
</pre> | </pre> | ||
行73: | 行115: | ||
android:summary="This is red." | android:summary="This is red." | ||
android:title="red" /> | android:title="red" /> | ||
+ | <EditTextPreference | ||
+ | android:key="editTextId" | ||
+ | android:title="editText" | ||
+ | android:summary="@string/edit_text_hint" | ||
+ | android:hint="@string/edit_text_hint" | ||
+ | /> | ||
+ | <PreferenceScreen android:key="image" | ||
+ | android:title="image" | ||
+ | /> | ||
</PreferenceScreen> | </PreferenceScreen> | ||
</pre> | </pre> | ||
+ | res/values/string.xml | ||
+ | <pre> | ||
+ | <resources> | ||
+ | <string name="app_name">FragmentMyApplication</string> | ||
+ | <string name="hello_world">Hello world!</string> | ||
+ | <string name="action_settings">Settings</string> | ||
+ | <string name="edit_text_hint">hint</string> | ||
+ | </resources> | ||
+ | |||
+ | </pre> | ||
+ | |||
+ | ==inconvertible types; cannnot cast Preferenceエラーが出る場合== | ||
+ | 古いPreferenceがあれば削除する | ||
+ | import android.preference.Preference; | ||
+ | import android.preference.EditTextPreference; | ||
+ | import android.preference.ListPreference; | ||
+ | 新しいPreferenceを追加 | ||
+ | import android.support.v7.preference.Preference; | ||
+ | import android.support.v7.preference.EditTextPreference; | ||
+ | import android.support.v7.preference.ListPreference; | ||
+ | Preference screen = (Preference) getPreferenceManager().findPreference("key1"); | ||
+ | or | ||
+ | Preference editTextPreference = (Preference) findPreference("key1"); | ||
+ | |||
+ | |||
+ | ==com.android.support.support:customtabs:26.1.0 same versionエラーが出るとき== | ||
+ | 以下をapp/build.gradleへ追加 | ||
+ | <pre> | ||
+ | dependencies { | ||
+ | implementation "com.android.support:customtabs:28.0.0" | ||
+ | implementation 'com.android.support:support-media-compat:28.0.0' | ||
+ | implementation 'com.android.support:support-v4:28.0.0' | ||
+ | } | ||
+ | </pre> | ||
+ | |||
+ | ==java.lang.IllegalStateException: Must specify preferenceTheme in themeエラーが出たとき== | ||
+ | res/values/styles.xml | ||
+ | <!-- Application theme. --> | ||
+ | <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar"> | ||
+ | <!-- Customize your theme here. --> | ||
+ | <item name="preferenceTheme">@style/PreferenceThemeOverlay</item> | ||
+ | </style> | ||
+ | @style/PreferenceThemeOverlayを追加 | ||
==参考== | ==参考== |
2018年12月27日 (木) 16:44時点における最新版
目次
Fragmentについて
Fragmentについて理解してない場合はこちら
android/Fragment [ショートカット]
PreferenceFragmentCompatを追加
build.gradleに以下を追加
dependencies { implementation 'com.android.support:appcompat-v7:28.0.0' implementation 'com.android.support:preference-v7:28.0.0' }
MainActivity.java
import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import com.kaji.fragmentmyapplication.ui.main.PrefsFragment; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main_activity); if (savedInstanceState == null) { getSupportFragmentManager().beginTransaction() .replace(R.id.container, PrefsFragment.newInstance()) .commitNow(); } } }
ui/main/PrefsFragment.java
import android.content.SharedPreferences; import android.os.Bundle; import android.support.v7.preference.PreferenceFragmentCompat; import android.support.v7.preference.Preference; import android.support.v7.preference.EditTextPreference; import android.support.v7.preference.PreferenceScreen; import com.kaji.fragmentmyapplication.R; public class PrefsFragment extends PreferenceFragmentCompat { private EditTextPreference editTextPreference; public static PrefsFragment newInstance() { return new PrefsFragment(); } @Override public void onCreatePreferences(Bundle bundle, String s) { setPreferencesFromResource(R.xml.preferences, s); editTextPreference = (EditTextPreference)findPreference("editTextId"); if (editTextPreference.getText() == null || editTextPreference.getText().length() < 1) { editTextPreference.setSummary(getResources().getString(R.string.edit_text_hint)); } else { editTextPreference.setSummary(editTextPreference.getText()); } editTextPreference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() { @Override public boolean onPreferenceClick(Preference preference) { EditTextPreference editPref = (EditTextPreference)preference; if (editPref.getText() != null) { editPref.setText(editPref.getText()); } return true; } }); editTextPreference.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() { @Override public boolean onPreferenceChange(Preference preference, Object newValue) { EditTextPreference editPref = (EditTextPreference)preference; editPref.setSummary(newValue.toString()); return true; } }); // imageのPreferenceScreenをクリックしたとき PreferenceScreen imagePreference = (PreferenceScreen)getPreferenceScreen().findPreference("image"); imagePreference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() { public boolean onPreferenceClick(Preference preference) { //Intent intent = new Intent(getContext(), HogehogeActivity.class); //startActivity(intent); return true; } }); } }
res/layout/main_activity.xml
<?xml version="1.0" encoding="utf-8"?> <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/container" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity" />
res/layout/preferences.xml
<?xml version="1.0" encoding="utf-8"?> <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"> <SwitchPreferenceCompat android:defaultValue="false" android:key="red" android:summary="This is red." android:title="red" /> <EditTextPreference android:key="editTextId" android:title="editText" android:summary="@string/edit_text_hint" android:hint="@string/edit_text_hint" /> <PreferenceScreen android:key="image" android:title="image" /> </PreferenceScreen>
res/values/string.xml
<resources> <string name="app_name">FragmentMyApplication</string> <string name="hello_world">Hello world!</string> <string name="action_settings">Settings</string> <string name="edit_text_hint">hint</string> </resources>
inconvertible types; cannnot cast Preferenceエラーが出る場合
古いPreferenceがあれば削除する
import android.preference.Preference; import android.preference.EditTextPreference; import android.preference.ListPreference;
新しいPreferenceを追加
import android.support.v7.preference.Preference; import android.support.v7.preference.EditTextPreference; import android.support.v7.preference.ListPreference; Preference screen = (Preference) getPreferenceManager().findPreference("key1");
or
Preference editTextPreference = (Preference) findPreference("key1");
com.android.support.support:customtabs:26.1.0 same versionエラーが出るとき
以下をapp/build.gradleへ追加
dependencies { implementation "com.android.support:customtabs:28.0.0" implementation 'com.android.support:support-media-compat:28.0.0' implementation 'com.android.support:support-v4:28.0.0' }
java.lang.IllegalStateException: Must specify preferenceTheme in themeエラーが出たとき
res/values/styles.xml
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar"> <item name="preferenceTheme">@style/PreferenceThemeOverlay</item> </style>
@style/PreferenceThemeOverlayを追加
参考
【Android】続・PreferenceFragmentCompatを使った設定画面(kotrin?) http://phicdy.hatenablog.com/entry/setting_ui_by_preference_fragment_compat
PreferenceActivity/PreferenceFragmentを使った設定画面 http://phicdy.hatenablog.com/entry/2015/09/08/%E3%80%90Android%E3%80%91PreferenceActivity/PreferenceFragment%E3%82%92%E4%BD%BF%E3%81%A3%E3%81%9F%E8%A8%AD%E5%AE%9A%E7%94%BB%E9%9D%A2