Every time I run my application in android studio it opens a white page

I am using the android studio to build an application. I did my login and signup page and connected them together but every time I try to open the signup page from my main page it opens a white page. this is the code for Signup page

<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=”.SignUp”>

<View
    android:id="@+id/view3"
    android:layout_width="wrap_content"
    android:layout_height="150dp"
    android:background="@color/colorPrimary"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent" />

<View
    android:id="@+id/view6"
    android:layout_width="0dp"
    android:layout_height="100dp"
    android:background="@drawable/wave"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/view3" />

<TextView
    android:id="@+id/textView2"
    android:layout_width="163dp"
    android:layout_height="96dp"
    android:layout_marginTop="36dp"
    android:text="@string/create_account"
    android:textColor="#FFFFFF"
    android:textSize="30sp"
    android:textStyle="bold"
    app:layout_constraintEnd_toEndOf="@+id/view3"
    app:layout_constraintHorizontal_bias="0.129"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent" />

<ImageView
    android:id="@+id/imageView3"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="32dp"
    android:layout_marginEnd="16dp"
    android:layout_marginRight="16dp"
    app:layout_constraintEnd_toEndOf="@+id/view3"
    app:layout_constraintTop_toTopOf="parent"
    app:srcCompat="@drawable/ic_person"
    tools:ignore="ContentDescription" />

<EditText
    android:id="@+id/textName"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_marginStart="32dp"
    android:layout_marginLeft="32dp"
    android:layout_marginTop="16dp"
    android:layout_marginEnd="32dp"
    android:layout_marginRight="32dp"
    android:background="@drawable/round_border"
    android:drawableStart="@drawable/ic_person_2"
    android:drawablePadding="16dp"
    android:ems="10"
    android:hint="@string/name"
    android:inputType="text"
    android:padding="16dp"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/view6"
    tools:ignore="Autofill,RtlCompat" />

<EditText
    android:id="@+id/inputEmail2"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_marginStart="32dp"
    android:layout_marginLeft="32dp"
    android:layout_marginTop="16dp"
    android:layout_marginEnd="32dp"
    android:layout_marginRight="32dp"
    android:background="@drawable/round_border"
    android:drawableStart="@drawable/ic_email"
    android:drawablePadding="16dp"
    android:ems="10"
    android:hint="@string/email_create_account"
    android:inputType="textEmailAddress"
    android:padding="16dp"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/textName"
    tools:ignore="Autofill,RtlCompat" />

<EditText
    android:id="@+id/textPass"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_marginStart="32dp"
    android:layout_marginLeft="32dp"
    android:layout_marginTop="16dp"
    android:layout_marginEnd="32dp"
    android:layout_marginRight="32dp"
    android:background="@drawable/round_border"
    android:drawableStart="@drawable/ic_lock"
    android:drawablePadding="16dp"
    android:ems="10"
    android:hint="@string/password_create_account"
    android:inputType="textPassword"
    android:padding="16dp"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/inputEmail2"
    tools:ignore="Autofill,RtlCompat" />

<Button
    android:id="@+id/btnUp"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_marginStart="50dp"
    android:layout_marginLeft="50dp"
    android:layout_marginTop="16dp"
    android:layout_marginEnd="50dp"
    android:layout_marginRight="50dp"
    android:background="@drawable/round_bg"
    android:text="@string/sign_up2"
    android:textColor="#FFFFFF"
    android:textSize="18sp"
    android:textStyle="bold"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@id/textPass" />

<Button
    android:id="@+id/btnIn"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_marginStart="50dp"
    android:layout_marginLeft="50dp"
    android:layout_marginTop="16dp"
    android:layout_marginEnd="50dp"
    android:layout_marginRight="50dp"
    android:background="@drawable/round_bg"
    android:text="@string/sign_in2"
    android:textColor="#FFFFFF"
    android:textSize="18sp"
    android:textStyle="bold"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/btnUp" />

</androidx.constraintlayout.widget.ConstraintLayout>

my main activity java code page:

public class MainActivity extends AppCompatActivity {

Button btnLogin, btnSignUp;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    //Hooks

    btnLogin=findViewById(R.id.btnSigning);
    btnSignUP=findViewById(R.id.btnSignUpMain);

    btnLogin.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent intent = new Intent (MainActivity.this,SignIn.class);
            startActivity(intent);
        }
    });
    btnSignUp.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent intent = new Intent (getApplicationContext(),SignUp.class);
            startActivity(intent);
        }
    });
}

}

Thanks for your help in advance 🙂

adobe camera raw – ACR: Quick Color Preview While Using “B&W Mixer” tool for Black and White Photo?

In Adobe Camera Raw, when using a monochrome color profile, we get the B&W Mixer tool:
Photo of B&W Mixer tool in Adobe Camera Raw

When using this tool, I wish I could quickly enter a keyboard shortcut and see a quick color preview of the image.

Is there a quick and easy way to see a color preview of an image with a monochrome color profile in Adobe Camera Raw, without changing the color profile?

Research

Lightroom B&W Mix: how to see where the original colors are? – this post is about seeing where certain colors are in Lightroom, which is similar, but not the same as my question. I’m interested in seeing the entire image in color briefly, not seeing a mask of a selected color.

How to color all menu icons white?

How can I color all icons consistently white?

In the below example you see two programs that show black icons.

enter image description here

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This

 Graphics[Square, Background -> Yellow]

yields what it should do, namely:

enter image description here

But when I try to change the background to white, by going

Graphics[Square, Background -> White]

I get this:

enter image description here

Argh! How can I make the background really white? Note that the problem also occurs when I specify white using RGBColor.

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color – Background colour suitable for both black and white text

Foreground light blue, white, gray, yellow color texts are present. Colors that don’t go with black color background are not visible.

I’ll withold judgement until I actually see an image or link to your design, but it sounds like you’re already trying to mix oil and water. There probably isn’t a background color to solve that problem, so let’s address the more interesting question…


You ask for

a background color that goes with both black and white foreground text color.

The right orange (and many other hues) can pull that off. See this paletton, and imagine it with a heavier font:

enter image description here

The white and black text are acceptably readable (to me, at least). But that color as a full page background would be overwhelming. Here’s the same palette desaturated a bit:

enter image description here

I think that looks ugly, but the black/white text is still fairly readable. Let’s desaturate to almost gray:

enter image description here

Now it’s more of a warm gray, and it doesn’t look so bad. But we’re starting to run up against the problem that ecc’s answer mentioned. Let’s fully desaturate to see what I mean:

enter image description here

Without the color saturation, the white and black text are too similar to the background, so they will be difficult and/or tiresome to read.

IMO, the second version (slightly desaturated) isn’t overwhelming and the text contrast is acceptable. Too bad it looks like grasshopper vomit.

Finally, keep in mind that any of the above versions will look very close to the grayscale version under certain kinds of colorblindness (dyschromatopsia and achromatopsia). That’s one of the reasons for this principle:

Background and text colors should have high value contrast, because hue and saturation contrast are too dependent upon individual perception and monitor/printer representation.

By using text that is white (value == 255) and black (value == 0), you are limited to a value contrast with the background of at most 127 (the middle of that range). For the sake of readability for most people on most devices, you should choose either bright text on a dark background, or dark text on a bright background. You can have bright text and dark text on the same page, just make sure they have different backgrounds:

enter image description here

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