I'm new at app development and Kotlin and I'm trying to do my first app for learning purposes but I'm kinda lost. Right now, I have an activity where to log in to my app via firebase. Then what I'm…
how can I fix this error in flutter with android studio /C:/src/flutterSDK/flutter/.pub-cache/hosted/pub.dartlang.org/get-4.6.3/lib/get_navigation/src/snackbar/snackbar.dart:452:31: Error: Method 'addPostFrameCallback' cannot be called on 'SchedulerBinding?' because it is potentially null. 'SchedulerBinding' is from 'package:flutter/src/scheduler/binding.dart' ('/C:/src/flutterSDK/flutter/packages/flutter/lib/src/scheduler/binding.dart'). Try calling using ?. instead. SchedulerBinding.instance.addPostFrameCallback( ^^^^^^^^^^^^^^^^^^^^
this is in Kotlin, it doesn't seem to work no matter what I try it's just a button with a click listener. Its function is to take me to another activity, I tried a toast but didn't show either. I…
<FrameLayout android:id="@+id/flTodayTraining" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginBottom="@dimen/fl_today_training_bg_margin_bottom" android:layout_marginTop="@dimen/fl_today_training_bg_margin_top" android:layout_marginHorizontal="@dimen/fl_today_training_bg_margin_horizontal" android:background="@drawable/today_training_bg" app:layout_constraintStart_toStartOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintTop_toBottomOf="@id/tvDaysTrained" > <androidx.appcompat.widget.LinearLayoutCompat android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <ImageView android:layout_width="match_parent" android:layout_height="@dimen/iv_today_training_detail_height" android:src="@drawable/male_upper_body" android:scaleType="fitXY" /> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/upper_body" android:textSize="@dimen/tv_today_training_detail_text_size" android:textColor="@color/black" android:paddingVertical="@dimen/tv_today_training_detail_padding_vertical" android:gravity="center" /> </androidx.appcompat.widget.LinearLayoutCompat> </FrameLayout> That's the cornered background of the…
custom_email_icon.xml <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_focused="true" android:drawable="@drawable/ic_email_focused"/> <item android:state_focused="false" android:drawable="@drawable/ic_email"/> </selector> activity_main.xml <EditText android:id="@+id/emailText" android:layout_width="301dp" android:layout_height="48dp" android:layout_marginTop="100dp" android:ems="10" android:background="@drawable/custom_input" android:drawableStart="@drawable/custom_email_icon" android:drawablePadding="12dp" android:paddingStart="12dp" android:paddingEnd="12dp" android:hint="Email Address" android:inputType="textPersonName" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" /> Icon color change not working when I clicked…
Attempt to invoke virtual method 'void android.widget.ImageView.setBackgroundResource(int)' on a null object reference at com.Adapter.MessageAdapter.onBindViewHolder(MessageAdapter.java:240) at com.Adapter.MessageAdapter.onBindViewHolder(MessageAdapter.java:37) at androidx.recyclerview.widget.RecyclerView$Adapter.onBindViewHolder(RecyclerView.java:7093) at androidx.recyclerview.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:7172) at androidx.recyclerview.widget.RecyclerView$Recycler.tryBindViewHolderByDeadline(RecyclerView.java:6037) at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:6304) at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6143) at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6139) at androidx.recyclerview.widget.LinearLayoutManager$LayoutState.next public class ViewHolder extends RecyclerView.ViewHolder { public ImageView read_chat; }…
I have a WebView inside my Android Studio project that fills the whole screen, and when they get into the app without an internet connection I show an activity that I have included, I hide the WebView, and I show…
Basically I have a ConsentForm Activity that the user scrolls through and give their consent. Upon pressing the consent Btn (Yes) a dialog where they have to enter their email pops up. When they enter a valid email and press…
I have an Android project with 2 apps. AppA register a receiver for the actions ACTION_PACKAGE_ADDED or ACTION_PACKAGE_REPLACED from code (not in it's Manifest). When I install AppB from command line with adb install AppB.apk I see that the BroadcastReceiver…
I just upgraded from Bumblebee to Chipmunk, and I am having multiple dependency-resolution issues in my instrumented androidTests. These are what my source sets look like: sourceSets { test.java.srcDirs += 'src/testShared/kotlin' test.resources.srcDirs += 'src/testShared/resources' androidTest.assets.srcDirs += files("$projectDir/schemas".toString()) androidTest.java.srcDirs += 'src/testShared/kotlin'…