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Gride View in Firebase

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  <? xml version ="1.0" encoding ="utf-8" ?> < androidx.constraintlayout.widget.ConstraintLayout xmlns: android ="http://schemas.android.com/apk/res/android" xmlns: app ="http://schemas.android.com/apk/res-auto" xmlns: tools ="http://schemas.android.com/tools" android :layout_width ="match_parent" android :layout_height ="match_parent" tools :context =".MainActivity" > < RelativeLayout xmlns: android ="http://schemas.android.com/apk/res/android" xmlns: tools ="http://schemas.android.com/tools" android :layout_width ="match_parent" android :layout_height ="match_parent" android :orientation ="vertical" tools :context =".MainActivity" > <!--Grid View for displaying our data from Firebase--> < GridView android :id ="@+id/...
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Register in kotlin

 Xml :- <? xml version ="1.0" encoding ="utf-8" ?> < ScrollView xmlns: android ="http://schemas.android.com/apk/res/android" xmlns: app ="http://schemas.android.com/apk/res-auto" xmlns: tools ="http://schemas.android.com/tools" android :layout_width ="match_parent" android :layout_height ="match_parent" tools :context =".MainActivity" > < LinearLayout android :orientation ="vertical" android :layout_width ="match_parent" android :layout_height ="match_parent" > < EditText android :layout_width ="match_parent" android :layout_height ="wrap_content" android :hint ="Email" android :id ="@+id/registeremail" /> < EditText android :layout_width ="match_parent" android :layout_height ="wrap_con...
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Insert Multiple Data in Kotlin

<? xml version ="1.0" encoding ="utf-8" ?> < manifest xmlns:android ="http://schemas.android.com/apk/res/android" package ="com.example.realtimedatabasekotlin" > < application android:allowBackup ="true" android:icon ="@mipmap/ic_launcher" android:label ="@string/app_name" android:roundIcon ="@mipmap/ic_launcher_round" android:supportsRtl ="true" android:theme ="@style/Theme.RealtimedatabaseKotlin" > < activity android:name =".UpdateData" > < intent-filter > < action android:name ="android.intent.action.MAIN" /> < category android:name ="android.intent.category.LAUNCHER" /> </ intent-filter > </ activity > < activity android:name =".ReadData" > ...
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Toast Message in Kotlin

  val text = "Register" val duration = Toast.LENGTH_SHORT val toast = Toast.makeText(applicationContext, text, duration) toast.show()
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Spineer View in textview in kotlin

  package com.example.schooladmin import androidx.appcompat.app. AppCompatActivity import android.os. Bundle import android.view. View import android.widget.* import java.util. ArrayList class Registerpage : AppCompatActivity(), AdapterView . OnItemSelectedListener { lateinit var spinner : Spinner lateinit var textView : TextView override fun onCreate (savedInstanceState: Bundle ?) { super .onCreate(savedInstanceState) setContentView( R . layout . activity_registerpage ) textView = findViewById( R . id . textView ) spinner = findViewById( R . id . spinner ) val adapter = ArrayAdapter .createFromResource( this , R . array . name , android. R . layout . simple_spinner_item ) adapter .setDropDownViewResource(android. R . layout . simple_spinner_dropdown_item ) spinner . adapter = adapter spinner . onItemSelectedListener = this } override fun onNothingSelected...
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Spineer View to text view in Android Studio(Java)

  package com.niranjan.garbagemanagement.admin ; import androidx.annotation. NonNull ; import androidx.appcompat.app.AppCompatActivity ; import android.os.Bundle ; import android.util.Log ; import android.view.View ; import android.widget.AdapterView ; import android.widget.ArrayAdapter ; import android.widget.Button ; import android.widget.EditText ; import android.widget.Spinner ; import android.widget.TextView ; import android.widget.Toast ; import com.google.android.gms.tasks.OnCompleteListener ; import com.google.android.gms.tasks.OnFailureListener ; import com.google.android.gms.tasks.OnSuccessListener ; import com.google.android.gms.tasks.Task ; import com.google.firebase.auth.FirebaseAuth ; import com.google.firebase.database.DatabaseReference ; import com.google.firebase.database.FirebaseDatabase ; import com.google.firebase. firestore.CollectionReference; import com.google.firebase. firestore.DocumentReference; import com.google.firebase. firestore.FirebaseFirestore; impo...
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Check Permission in Android Studio

          if(ActivityCompat.checkSelfPermission(                 this,                 android.Manifest.permission.CAMERA             ) == PackageManager.PERMISSION_GRANTED         ){         }else{            ActivityCompat.requestPermissions(this,            arrayOf(android.Manifest.permission.CAMERA),1234)         }
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On Long click of any row/itemView display/visible checkbox in all row/itemView

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  (image list maximum 20 ,image like nature,flower) 1)Display image list in recyclerview with name,image 2)On click of image in recyclerview display image in dialog box 3)On Long click of any row/itemView display/visible checkbox in all row/itemView, 4)Display selected/checked image list into next page on submit button <? xml version ="1.0" encoding ="utf-8" ?> < androidx.constraintlayout.widget.ConstraintLayout xmlns: android ="http://schemas.android.com/apk/res/android" xmlns: app ="http://schemas.android.com/apk/res-auto" xmlns: tools ="http://schemas.android.com/tools" android :layout_width ="match_parent" android :layout_height ="match_parent" tools :context =".MainActivity" > < androidx.recyclerview.widget.RecyclerView android :layout_width ="match_parent" android :layout_height ="match_parent" android :id ="@+id/r...
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