I searched google out and did not find a solution. I created two Actionviews through intent. And even one screen goes to the other. But the problem starts when I try to put functions on screen2. The application compiles but it hangs on the phone. I'm going to post the java code and the xmls code
screen1 java:
package com.example.luedry.teste.feature;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.content.Intent;
import android.view.View;
public class MainActivity extends AppCompatActivity {
public void irtela2 (View view){
Intent tela2=new Intent(MainActivity.this,Tela2Activity.class);
startActivity(tela2);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
screen1 xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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/verde"
android:orientation="vertical"
tools:context=".MainActivity">
<LinearLayout
android:layout_width="377dp"
android:layout_height="61dp"
android:orientation="horizontal">
<TextView
android:id="@+id/textView2"
android:layout_width="180dp"
android:layout_height="67dp"
android:layout_weight="1"
android:text="data"
android:textColor="@color/branco"
android:textSize="30sp"
tools:layout_editor_absoluteX="19dp"
tools:layout_editor_absoluteY="0dp" />
<Button
android:id="@+id/button4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@color/fundo"
android:text="configurações"
android:onClick="irtela2"
android:textColor="@color/branco" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="112dp"
android:orientation="vertical">
<TextView
android:id="@+id/textView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:text="Aplicativo mqtt banco de dados"
android:textColor="@color/branco"
android:textSize="30sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="90dp"
android:orientation="horizontal">
<TextView
android:id="@+id/textView4"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center"
android:textColor="@color/branco"
android:textSize="30sp"
android:text="valor da caixa" />
<TextView
android:id="@+id/textView3"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center"
android:text="%s"
android:textColor="@color/branco"
android:textSize="30sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<ImageView
android:id="@+id/imageView"
android:layout_width="575dp"
android:layout_height="match_parent"
android:layout_weight="1"
app:srcCompat="@drawable/icone" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="vertical"></LinearLayout>
</LinearLayout>
</LinearLayout>
screen2 java:
package com.example.luedry.teste.feature;
import android.content.Intent;
import android.graphics.Color;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class Tela2Activity extends AppCompatActivity {
public void voltartela1 (View view){
Intent volta1=new Intent(Tela2Activity.this,MainActivity.class);
startActivity(volta1);
}
Button musica;
TextView txt;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
musica= (Button) findViewById(R.id.customizar);
txt=(TextView) findViewById(R.id.mudar);
musica.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
txt.setBackgroundColor(Color.parseColor("@color/branco"));
}
});
}
}
screen2 xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
android:background="@color/verde"
tools:context=".Tela2Activity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="@+id/textView5"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:text="date"
android:textColor="@color/branco"
android:textSize="30sp" />
<Button
android:id="@+id/button2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="@color/fundo"
android:text="return"
android:onClick="voltartela1"
android:textColor="@color/branco"
android:textSize="20sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="55dp"
android:orientation="horizontal">
<TextView
android:id="@+id/mudar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:text="Tela de configurações"
android:textColor="@color/branco"
android:textSize="30sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="124dp"
android:orientation="vertical">
<TextView
android:id="@+id/textView7"
android:layout_width="match_parent"
android:layout_height="52dp"
android:gravity="center"
android:text="digite host,porta,nome,senha,topico"
android:textColor="@color/branco"
android:textSize="20sp" />
<android.support.design.widget.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.design.widget.TextInputEditText
android:id="@+id/pega"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/branco"
android:gravity="center"
android:hint="hint" />
</android.support.design.widget.TextInputLayout>
<Button
android:id="@+id/button3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="enviar"
android:background="@color/fundo"
android:textColor="@color/branco"
android:textSize="20sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="28dp"
android:orientation="horizontal"></LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="44dp"
android:orientation="vertical">
<Space
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" />
<Button
android:id="@+id/customizar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@color/fundo"
android:text="musica"
android:textColor="@color/branco"
android:textSize="20sp" />
<Space
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" />
<Button
android:id="@+id/button6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@color/fundo"
android:text="vibrar"
android:textColor="@color/branco"
android:textSize="20sp" />
<Space
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ImageView
android:id="@+id/imageView3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:srcCompat="@drawable/icone" />
</LinearLayout>
</LinearLayout>