{"id":8476,"date":"2020-07-27T12:14:44","date_gmt":"2020-07-27T03:14:44","guid":{"rendered":"https:\/\/www.gesource.jp\/weblog\/?p=8476"},"modified":"2020-07-27T08:16:11","modified_gmt":"2020-07-26T23:16:11","slug":"viewpager2%e5%86%85%e3%81%aefragment%e3%81%ae%e8%a1%a8%e7%a4%ba%e7%8a%b6%e6%85%8b%e3%82%92%e7%9b%a3%e8%a6%96%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/www.gesource.jp\/weblog\/?p=8476","title":{"rendered":"ViewPager2\u5185\u306eFragment\u306e\u8868\u793a\u72b6\u614b\u3092\u76e3\u8996\u3059\u308b"},"content":{"rendered":"

ViewPager2\u5185\u3067Fragment\u3092\u5229\u7528\u3059\u308b\u3068\u304d\u3001Fragment\u81ea\u8eab\u304c\u8868\u793a\u72b6\u614b\u306b\u306a\u3063\u305f\u3053\u3068\u3092\u77e5\u308a\u305f\u3044\u3002<\/p>\n

ViewPager2\u306f\u3001\u8868\u793a\u30da\u30fc\u30b8\u304c\u5909\u308f\u3063\u305f\u3068\u304d\u306bViewPager2.OnPageChangeCallback\u306eonPageSelected()\u30e1\u30bd\u30c3\u30c9\u304c\u547c\u3070\u308c\u308b\u3002
\nViewPager2.OnPageChangeCallback\u3092registerOnPageChangeCallback()\u30e1\u30bd\u30c3\u30c9\u3067\u767b\u9332\u3059\u308b\u3053\u3068\u3067\u3001\u65b0\u3057\u3044\u30da\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u305f\u3053\u3068\u3092\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n

public class MainActivity extends AppCompatActivity {\n    static final String TAG = MainActivity.class.getSimpleName();\n\n    @Override\n    protected void onCreate(Bundle savedInstanceState) {\n        super.onCreate(savedInstanceState);\n        setContentView(R.layout.activity_main);\n\n        MyFragmentPagerAdapter adapter = new MyFragmentPagerAdapter(this);\n        ViewPager2 viewPager = findViewById(R.id.viewPager);\n        viewPager.setAdapter(adapter);\n\n        viewPager.registerOnPageChangeCallback(new ViewPager2.OnPageChangeCallback() {\n            @Override\n            public void onPageSelected(int position) {\n                super.onPageSelected(position);\n                \/\/ \u65b0\u3057\u3044\u30da\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u305f\u3000\n                Log.d(TAG, \"onPageScrollStateChanged position=\" + position);\n            }\n        });\n    }\n}\n<\/code><\/pre>\n
ViewPager2\u3067\u306f\u3001Fragment\u304c\u8868\u793a\u72b6\u614b\u306b\u306a\u308b\u3068Fragment\u306eonResume()\u304c\u547c\u3070\u308c\u308b\u3002
\nonResume()\u30e1\u30bd\u30c3\u30c9\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3059\u308b\u3053\u3068\u3067\u3001\u53ef\u8996\u72b6\u614b\u306b\u306a\u3063\u305f\u3053\u3068\u304c\u5206\u304b\u308b\u3002<\/p>\n
public class LeftFragment extends Fragment {\n    static final String TAG = LeftFragment.class.getSimpleName();\n\n    @Override\n    public View onCreateView(LayoutInflater inflater, ViewGroup container,\n                            Bundle savedInstanceState) {\n        \/\/ Inflate the layout for this fragment\n        return inflater.inflate(R.layout.fragment_left, container, false);\n    }\n\n    @Override\n    public void onResume() {\n        super.onResume();\n        \/\/ \u8868\u793a\u3055\u308c\u305f\n        Log.d(TAG, \"onResume\");\n    }\n}\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
ViewPager2\u5185\u3067Fragment\u3092\u5229\u7528\u3059\u308b\u3068\u304d\u3001Fragment\u81ea\u8eab\u304c\u8868\u793a\u72b6\u614b\u306b\u306a\u3063\u305f\u3053\u3068\u3092\u77e5\u308a\u305f\u3044\u3002 ViewPager2\u306f\u3001\u8868\u793a\u30da\u30fc\u30b8\u304c\u5909\u308f\u3063\u305f\u3068\u304d\u306bViewPager2.OnPageChangeCallba …<\/p>\n
Continue reading ‘ViewPager2\u5185\u306eFragment\u306e\u8868\u793a\u72b6\u614b\u3092\u76e3\u8996\u3059\u308b’ »<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[13],"tags":[106],"class_list":["post-8476","post","type-post","status-publish","format-standard","hentry","category-java","tag-android"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.gesource.jp\/weblog\/index.php?rest_route=\/wp\/v2\/posts\/8476","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gesource.jp\/weblog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gesource.jp\/weblog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gesource.jp\/weblog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gesource.jp\/weblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8476"}],"version-history":[{"count":0,"href":"https:\/\/www.gesource.jp\/weblog\/index.php?rest_route=\/wp\/v2\/posts\/8476\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.gesource.jp\/weblog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8476"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gesource.jp\/weblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8476"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gesource.jp\/weblog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8476"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}