Mobile Apps 2023W Lecture 8 - Revision history

Soma at 23:37, 3 February 2023

2023-02-03T23:37:35Z

@@ Line 8: / Line 8: @@
 * [https://www.geeksforgeeks.org/volley-library-in-android/ Volley Tutorial]
 * [https://www.geeksforgeeks.org/how-to-build-a-weather-app-in-android/ Weather App Tutorial]
 ==Code==

Soma at 23:37, 3 February 2023

2023-02-03T23:37:02Z

← Older revision		Revision as of 23:37, 3 February 2023
Line 8:		Line 8:
	* [https://www.geeksforgeeks.org/volley-library-in-android/ Volley Tutorial]		* [https://www.geeksforgeeks.org/volley-library-in-android/ Volley Tutorial]
	* [https://www.geeksforgeeks.org/how-to-build-a-weather-app-in-android/ Weather App Tutorial]		* [https://www.geeksforgeeks.org/how-to-build-a-weather-app-in-android/ Weather App Tutorial]

			==Code==

			<syntaxhighlight lang="kotlin" line>
			package carleton.comp2601.weather2601

			import android.os.Bundle
			import androidx.activity.ComponentActivity
			import androidx.activity.compose.setContent
			import androidx.compose.foundation.layout.fillMaxSize
			import androidx.compose.material.MaterialTheme
			import androidx.compose.material.Surface
			import androidx.compose.material.Text
			import androidx.compose.runtime.*
			import androidx.compose.ui.Modifier
			import carleton.comp2601.weather2601.ui.theme.Weather2601Theme
			import com.android.volley.Request
			import com.android.volley.RequestQueue
			import com.android.volley.toolbox.StringRequest
			import com.android.volley.toolbox.Volley
			import org.json.JSONObject

			class MainActivity : ComponentActivity() {
			override fun onCreate(savedInstanceState: Bundle?) {
			super.onCreate(savedInstanceState)

			val queue = Volley.newRequestQueue(this)

			setContent {
			Weather2601Theme {
			// A surface container using the 'background' color from the theme
			Surface(
			modifier = Modifier.fillMaxSize(),
			color = MaterialTheme.colors.background
			) {
			ShowTemp(queue)
			}
			}
			}
			}
			}


			@Composable
			fun ShowTemp(queue: RequestQueue) {
			var temp by remember {
			mutableStateOf("No Temp Yet")
			}

			getTemp({newTemp -> temp = newTemp}, queue)
			Text(text = temp)
			}

			fun getTemp(updater: (String)->Unit, queue: RequestQueue) {
			val weatherbitKey = "648ba46141624d01a4c4fc5c7b2be856"

			val url: String = "https://api.weatherbit.io/v2.0/current?" +
			"&city=Nashville&state=TN&country=USA" +
			"&key=" + weatherbitKey

			val stringReq = StringRequest(
			Request.Method.GET, url,
			{ response ->
			val obj = JSONObject(response)
			val arr = obj.getJSONArray("data")
			val data = arr.getJSONObject(0)
			val newTemp = data.getString("temp")
			updater("Temp in Nashville: " + newTemp)
			},
			{ updater("Couldn't get temp")})

			queue.add(stringReq)
			}
			</syntaxhighlight>

Soma: Created page with "==Resources== Documentation: * [https://google.github.io/volley/ Volley] * [https://www.weatherbit.io/ Weatherbit] - create an account, sign up for the free plan Tutorials (From GeeksforGeeks.org): * [https://www.geeksforgeeks.org/volley-library-in-android/ Volley Tutorial] * [https://www.geeksforgeeks.org/how-to-build-a-weather-app-in-android/ Weather App Tutorial]"

2023-02-03T18:58:00Z

Created page with "==Resources== Documentation: * [https://google.github.io/volley/ Volley] * [https://www.weatherbit.io/ Weatherbit] - create an account, sign up for the free plan Tutorials (From GeeksforGeeks.org): * [https://www.geeksforgeeks.org/volley-library-in-android/ Volley Tutorial] * [https://www.geeksforgeeks.org/how-to-build-a-weather-app-in-android/ Weather App Tutorial]"

New page

==Resources==

Documentation:
* [https://google.github.io/volley/ Volley]
* [https://www.weatherbit.io/ Weatherbit] - create an account, sign up for the free plan

Tutorials (From GeeksforGeeks.org):
* [https://www.geeksforgeeks.org/volley-library-in-android/ Volley Tutorial]
* [https://www.geeksforgeeks.org/how-to-build-a-weather-app-in-android/ Weather App Tutorial]