| fun <T: ViewModel> T.createFactory() : ViewModelProvider.Factory { | |
| val viewModel = this | |
| @Suppress("UNCHECKED_CAST") | |
| return object :ViewModelProvider.Factory{ | |
| override fun <T : ViewModel?> create(modelClass: Class<T>): T = viewModel as T | |
| } | |
| } |
Starting from Android Marshmallow (API 23), users will be asked for permissions while the app is running. This way, a user is able to choose which permissions they should grant without affecting the application flow. In this tutorial I will cover requesting runtime permissions in Android M and N, how to perform a request, get its result and then handle it.
| <?php | |
| $paises = array("Afganistán","Albania","Alemania","Andorra","Angola","Antigua y Barbuda","Arabia Saudita","Argelia","Argentina","Armenia","Australia","Austria","Azerbaiyán","Bahamas","Bangladés","Barbados","Baréin","Bélgica","Belice","Benín","Bielorrusia","Birmania","Bolivia","Bosnia y Herzegovina","Botsuana","Brasil","Brunéi","Bulgaria","Burkina Faso","Burundi","Bután","Cabo Verde","Camboya","Camerún","Canadá","Catar","Chad","Chile","China","Chipre","Ciudad del Vaticano","Colombia","Comoras","Corea del Norte","Corea del Sur","Costa de Marfil","Costa Rica","Croacia","Cuba","Dinamarca","Dominica","Ecuador","Egipto","El Salvador","Emiratos Árabes Unidos","Eritrea","Eslovaquia","Eslovenia","España","Estados Unidos","Estonia","Etiopía","Filipinas","Finlandia","Fiyi","Francia","Gabón","Gambia","Georgia","Ghana","Granada","Grecia","Guatemala","Guyana","Guinea","Guinea ecuatorial","Guinea-Bisáu","Haití","Honduras","Hungría","India","Indonesia","Irak","Irán","Irlanda","Islandia","Islas Marshall","Islas Salomón |
| /** | |
| * Fancy ID generator that creates 20-character string identifiers with the following properties: | |
| * | |
| * 1. They're based on timestamp so that they sort *after* any existing ids. | |
| * 2. They contain 72-bits of random data after the timestamp so that IDs won't collide with other clients' IDs. | |
| * 3. They sort *lexicographically* (so the timestamp is converted to characters that will sort properly). | |
| * 4. They're monotonically increasing. Even if you generate more than one in the same timestamp, the | |
| * latter ones will sort after the former ones. We do this by using the previous random bits | |
| * but "incrementing" them by 1 (only in the case of a timestamp collision). | |
| */ |
