package
com.example.firebaseproject
import
android.annotation.SuppressLint
import
android.content.Context
import
android.os.Bundle
import
android.text.TextUtils
import
android.util.Log
import
android.widget.Toast
import
androidx.activity.ComponentActivity
import
androidx.activity.compose.setContent
import
androidx.compose.foundation.background
import
androidx.compose.foundation.layout.*
import
androidx.compose.material.*
import
androidx.compose.runtime.Composable
import
androidx.compose.runtime.mutableStateOf
import
androidx.compose.runtime.remember
import
androidx.compose.ui.Alignment
import
androidx.compose.ui.Modifier
import
androidx.compose.ui.graphics.Color
import
androidx.compose.ui.platform.LocalContext
import
androidx.compose.ui.text.TextStyle
import
androidx.compose.ui.text.style.TextAlign
import
androidx.compose.ui.unit.dp
import
androidx.compose.ui.unit.sp
import
com.example.firebaseproject.ui.theme.FirebaseProjectTheme
import
com.example.firebaseproject.ui.theme.greenColor
import
com.google.firebase.firestore.CollectionReference
import
com.google.firebase.firestore.FirebaseFirestore
class
MainActivity : ComponentActivity() {
@SuppressLint
(
"UnrememberedMutableState"
)
override fun onCreate(savedInstanceState: Bundle?) {
super
.onCreate(savedInstanceState)
setContent {
FirebaseProjectTheme {
Surface(
modifier = Modifier.fillMaxSize(), color = MaterialTheme.colors.background
) {
Scaffold(
topBar = {
TopAppBar(backgroundColor = greenColor,
title = {
Text(
text =
"GFG"
,
modifier = Modifier.fillMaxWidth(),
textAlign = TextAlign.Center,
color = Color.White
)
})
}) {
firebaseUI(LocalContext.current)
}
}
}
}
}
}
@Composable
fun firebaseUI(context: Context) {
val courseName = remember {
mutableStateOf(
""
)
}
val courseDuration = remember {
mutableStateOf(
""
)
}
val courseDescription = remember {
mutableStateOf(
""
)
}
Column(
modifier = Modifier
.fillMaxHeight()
.fillMaxWidth()
.background(Color.White),
verticalArrangement = Arrangement.Center, horizontalAlignment = Alignment.CenterHorizontally
) {
TextField(
value = courseName.value,
onValueChange = { courseName.value = it },
placeholder = { Text(text =
"Enter your course name"
) },
modifier = Modifier
.padding(
16
.dp)
.fillMaxWidth(),
textStyle = TextStyle(color = Color.Black, fontSize =
15
.sp),
singleLine =
true
,
)
Spacer(modifier = Modifier.height(
10
.dp))
TextField(
value = courseDuration.value,
onValueChange = { courseDuration.value = it },
placeholder = { Text(text =
"Enter your course duration"
) },
modifier = Modifier
.padding(
16
.dp)
.fillMaxWidth(),
textStyle = TextStyle(color = Color.Black, fontSize =
15
.sp),
singleLine =
true
,
)
Spacer(modifier = Modifier.height(
10
.dp))
TextField(
value = courseDescription.value,
onValueChange = { courseDescription.value = it },
placeholder = { Text(text =
"Enter your course description"
) },
modifier = Modifier
.padding(
16
.dp)
.fillMaxWidth(),
textStyle = TextStyle(color = Color.Black, fontSize =
15
.sp),
singleLine =
true
,
)
Spacer(modifier = Modifier.height(
10
.dp))
Button(
onClick = {
if
(TextUtils.isEmpty(courseName.value.toString())) {
Toast.makeText(context,
"Please enter course name"
, Toast.LENGTH_SHORT).show()
}
else
if
(TextUtils.isEmpty(courseDuration.value.toString())) {
Toast.makeText(context,
"Please enter course Duration"
, Toast.LENGTH_SHORT)
.show()
}
else
if
(TextUtils.isEmpty(courseDescription.value.toString())) {
Toast.makeText(context,
"Please enter course descritpion"
, Toast.LENGTH_SHORT)
.show()
}
else
{
addDataToFirebase(
courseName.value,
courseDuration.value,
courseDescription.value, context
)
}
},
modifier = Modifier
.fillMaxWidth()
.padding(
16
.dp)
) {
Text(text =
"Add Data"
, modifier = Modifier.padding(
8
.dp))
}
}
}
fun addDataToFirebase(
courseName: String,
courseDuration: String,
courseDescription: String,
context: Context
) {
val db: FirebaseFirestore = FirebaseFirestore.getInstance()
val dbCourses: CollectionReference = db.collection(
"Courses"
)
val courses = Course(courseName, courseDescription, courseDuration)
dbCourses.add(courses).addOnSuccessListener {
Toast.makeText(
context,
"Your Course has been added to Firebase Firestore"
,
Toast.LENGTH_SHORT
).show()
}.addOnFailureListener { e ->
Toast.makeText(context,
"Fail to add course \n$e"
, Toast.LENGTH_SHORT).show()
}
}