Web25 feb. 2024 · I've been having this doubt since a long time, when I'm working with android fragments and I need to instantiate a Context, or I need to pass a Context as argument for other function, I can choose to use between getContext() and requireContext() methods to achieve that, I normally prefer to use requireContext(), but just because the … WebDialog dialog = new Dialog(this, R.style.AppTheme); dialog.setContentView(R.layout.activity_main); View view = dialog.findViewById(R.id.view_1); 当获取Dialog的Context或者Inflate出的View的Context 获取的就是 ContextThemeWrapper,不能强转为Activity 或者当运行在 5.0 系统版本以下 …
How to define context in a kotlin object - Stack Overflow
Web15 okt. 2024 · kotlin Context使用详解 发布于2024-10-15 20:18:08 阅读 1.2K 0 在activity级下使用this表示context kotlin中取消了xxxActivity.this的用法,所以我们可以在activity下新建一个Context属性——instance指向它本身。 然后在其他地方使用。 如果使用的地方是在activity这一级则可以直接使用this指向它本身 Webそうすれば、以下のサンプルコードに示すようなコンテキストを取得できます。 class ActivityViewModel (application: Application) : AndroidViewModel (application) { private val context = getApplication().applicationContext //... ViewModel methods } — devDeejay ソース 3 アプリケーションパラメータと通常のViewModelを直接使用してみ … cole \u0026 mason herb and spice rack
Context Android Developers
Web13 feb. 2024 · ViewModel で Context を使う リソース文字列を取得するなどで Context を使うことがあります。 Activity や Fragment では、Context を取得する方法があります … Web17 mrt. 2024 · Over a year ago, in February 2024, when Kotlin 1.6.20 was released, the language introduced context receivers for the first time. The language makers decided to come up with a prototype to demonstrate the design proposal solving the highly popular use case of adding context to Kotlin functions. Adding context…. Web29 dec. 2024 · 取得方法. Java. Activity: this; View, Fragment: getContext(), requireContext() Kotlin. Activity: this; View, Fragment: context, requireContext() getContext() … drneremin lofty walk ins