Unterschied bei App Emulator und Code (Falsche Formatierung)

java code:


package com.example.rd1000_ptlgtv0pkvbg.barcode_app;


import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;


public class MainActivity extends AppCompatActivity {


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


        final EditText etName = (EditText) findViewById(R.id.etName);
        final EditText etPassword = (EditText) findViewById(R.id.etPassword);
        final Button bLogin = (Button) findViewById(R.id.bLogin);
        final TextView TRegister = (TextView) findViewById(R.id.TRegister);
    }


    public void startRegister(View view) {
        setContentView(R.layout.activity_register);
    }
}


xml code:


    <?xml version="1.0" encoding="utf-8"?>
    <android.support.constraint.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"
        android:background="@color/colorPrimaryDark"
        tools:context="com.example.rd1000_ptlgtv0pkvbg.barcode_app.MainActivity">


        <EditText
            android:id="@+id/etPassword"
            android:layout_width="267dp"
            android:layout_height="40dp"
            android:ems="10"
            android:inputType="textPassword"
            android:text="Password"
            android:shadowColor="@android:color/background_light"
            android:backgroundTint="#ffffff"
            android:textColor="@android:color/background_light"
            tools:layout_editor_absoluteX="59dp"
            tools:layout_editor_absoluteY="284dp" />


        <EditText
            android:id="@+id/etName"
            android:layout_width="267dp"
            android:layout_height="40dp"
            android:ems="10"
            android:inputType="textPersonName"
            android:shadowColor


="@android:color/background_light"
        android:backgroundTint="#ffffff"
        android:text="Name"
        android:textColor="@android:color/background_light"
        tools:layout_editor_absoluteX="59dp"
        tools:layout_editor_absoluteY="235dp" />


    <Button
        android:id="@+id/bLogin"
        android:layout_width="268dp"
        android:layout_height="43dp"
        android:text="Login"
        android:textColor="@color/colorPrimaryDark"
        tools:layout_editor_absoluteX="58dp"
        tools:layout_editor_absoluteY="335dp" />


    <TextView
        android:id="@+id/TRegister"
        android:layout_width="85dp"
        android:layout_height="19dp"
        android:text="Register here"
        android:onClick="startRegister"
        android:textColor="@android:color/background_light"
        tools:layout_editor_absoluteX="150dp"
        tools:layout_editor_absoluteY="388dp" />


    <ImageView
        android:id="@+id/imageView11"
        android:layout_width="333dp"
        android:layout_height="221dp"
        app:srcCompat="@drawable/if_barcode_363078"
        tools:layout_editor_absoluteX="27dp"
        tools:layout_editor_absoluteY="0dp" />


</android.support.constraint.ConstraintLayout>