Android App crasht immer beim starten

Jumpyy · 10. November 2019

Hallo, Ich habe folgendes Problem. Jedes mal wenn ich eine bestimmte Activity starten möchte Crasht meine App.
Hier die MainActivity womit ich eine andere Activity aufrufen möchte, welche dann Crasht:

Java

package com.bekunse.konterbierdastrinkspiel;


import androidx.appcompat.app.AppCompatActivity;


import android.content.Intent;
import android.widget.CheckBox;
import android.os.Bundle;
import android.view.View;
import android.widget.CompoundButton;
import android.widget.ImageButton;




public class MainActivity extends AppCompatActivity {


    ImageButton ImageSubmit;


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


        ImageSubmit=findViewById(R.id.WeiterButton);
        final CheckBox KapitoCheck =findViewById(R.id.KapitoBox);


        KapitoCheck.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if (KapitoCheck.isChecked()){
                    ImageSubmit.setVisibility(View.VISIBLE);
                }
                else{
                    ImageSubmit.setVisibility(View.INVISIBLE);
                }
            }
        });
        ImageSubmit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startActivity(new Intent(MainActivity.this, MainMenu.class));
            }
        });
    }
}

Alles anzeigen

Die Activity, die Crasht:

Java

package com.bekunse.konterbierdastrinkspiel;


import androidx.appcompat.app.AppCompatActivity;


import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.SeekBar;


public class MainMenu extends AppCompatActivity {


    //get Seekbar Maximum, Element and Progress
    SeekBar seekBarPlayer1 = findViewById(R.id.seekBarPlayer);
    //int maxPlayer = seekBarPlayer.getMax();
    int CurrentPlayerNumber = seekBarPlayer1.getProgress();


    //get the Names of the players
    final EditText player1 = findViewById(R.id.player1);
    final EditText player2 = findViewById(R.id.player2);
    final EditText player3 = findViewById(R.id.player3);
    final EditText player4 = findViewById(R.id.player4);
    final EditText player5 = findViewById(R.id.player5);
    final EditText player6 = findViewById(R.id.player6);
    final EditText player7 = findViewById(R.id.player7);
    final EditText player8 = findViewById(R.id.player8);
    final EditText player9 = findViewById(R.id.player9);
    final EditText player10 = findViewById(R.id.player10);


    //put the player Names in Strings
    String playerName1 = player1.getText().toString();
    String playerName2 = player2.getText().toString();
    String playerName3 = player3.getText().toString();
    String playerName4 = player4.getText().toString();
    String playerName5 = player5.getText().toString();
    String playerName6 = player6.getText().toString();
    String playerName7 = player7.getText().toString();
    String playerName8 = player8.getText().toString();
    String playerName9 = player9.getText().toString();
    String playerName10 = player10.getText().toString()


    ImageButton NextBTN = findViewById(R.id.WeiterButton);


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


        if (CurrentPlayerNumber == 2) {
            player3.setVisibility(View.GONE);
            player3.setText("");
            player4.setVisibility(View.GONE);
            player4.setText("");
            player5.setVisibility(View.GONE);
            player5.setText("");
            player6.setVisibility(View.GONE);
            player6.setText("");
            player7.setVisibility(View.GONE);
            player7.setText("");
            player8.setVisibility(View.GONE);
            player8.setText("");
            player9.setVisibility(View.GONE);
            player9.setText("");
            player10.setVisibility(View.GONE);
            player10.setText("");
        }
        if (CurrentPlayerNumber == 3) {
            player3.setVisibility(View.VISIBLE);
            player4.setVisibility(View.GONE);
            player4.setText("");
            player5.setVisibility(View.GONE);
            player5.setText("");
            player6.setVisibility(View.GONE);
            player6.setText("");
            player7.setVisibility(View.GONE);
            player7.setText("");
            player8.setVisibility(View.GONE);
            player8.setText("");
            player9.setVisibility(View.GONE);
            player9.setText("");
            player10.setVisibility(View.GONE);
            player10.setText("");
        }
        if (CurrentPlayerNumber == 4) {
            player3.setVisibility(View.VISIBLE);
            player4.setVisibility(View.VISIBLE);
            player5.setVisibility(View.GONE);
            player5.setText("");
            player6.setVisibility(View.GONE);
            player6.setText("");
            player7.setVisibility(View.GONE);
            player7.setText("");
            player8.setVisibility(View.GONE);
            player8.setText("");
            player9.setVisibility(View.GONE);
            player9.setText("");
            player10.setVisibility(View.GONE);
            player10.setText("");
        }
        if (CurrentPlayerNumber == 5) {
            player3.setVisibility(View.VISIBLE);
            player4.setVisibility(View.VISIBLE);
            player5.setVisibility(View.VISIBLE);
            player6.setVisibility(View.GONE);
            player6.setText("");
            player7.setVisibility(View.GONE);
            player7.setText("");
            player8.setVisibility(View.GONE);
            player8.setText("");
            player9.setVisibility(View.GONE);
            player9.setText("");
            player10.setVisibility(View.GONE);
            player10.setText("");
        }
        if (CurrentPlayerNumber == 6) {
            player3.setVisibility(View.VISIBLE);
            player4.setVisibility(View.VISIBLE);
            player5.setVisibility(View.VISIBLE);
            player6.setVisibility(View.VISIBLE);
            player7.setVisibility(View.GONE);
            player7.setText("");
            player8.setVisibility(View.GONE);
            player8.setText("");
            player9.setVisibility(View.GONE);
            player9.setText("");
            player10.setVisibility(View.GONE);
            player10.setText("");
        }
        if (CurrentPlayerNumber == 7) {
            player3.setVisibility(View.VISIBLE);
            player4.setVisibility(View.VISIBLE);
            player5.setVisibility(View.VISIBLE);
            player6.setVisibility(View.VISIBLE);
            player7.setVisibility(View.VISIBLE);
            player8.setVisibility(View.GONE);
            player8.setText("");
            player9.setVisibility(View.GONE);
            player9.setText("");
            player10.setVisibility(View.GONE);
            player10.setText("");
        }
        if (CurrentPlayerNumber == 8) {
            player3.setVisibility(View.VISIBLE);
            player4.setVisibility(View.VISIBLE);
            player5.setVisibility(View.VISIBLE);
            player6.setVisibility(View.VISIBLE);
            player7.setVisibility(View.VISIBLE);
            player8.setVisibility(View.VISIBLE);
            player9.setVisibility(View.GONE);
            player9.setText("");
            player10.setVisibility(View.GONE);
            player10.setText("");
        }
        if (CurrentPlayerNumber == 9) {
            player3.setVisibility(View.VISIBLE);
            player4.setVisibility(View.VISIBLE);
            player5.setVisibility(View.VISIBLE);
            player6.setVisibility(View.VISIBLE);
            player7.setVisibility(View.VISIBLE);
            player8.setVisibility(View.VISIBLE);
            player9.setVisibility(View.VISIBLE);
            player10.setVisibility(View.GONE);
            player10.setText("");
        }
        if (CurrentPlayerNumber == 10) {
            player3.setVisibility(View.VISIBLE);
            player4.setVisibility(View.VISIBLE);
            player5.setVisibility(View.VISIBLE);
            player6.setVisibility(View.VISIBLE);
            player7.setVisibility(View.VISIBLE);
            player8.setVisibility(View.VISIBLE);
            player9.setVisibility(View.VISIBLE);
            player10.setVisibility(View.VISIBLE);
        }
    }
}

Alles anzeigen

Wenn mir jemand helfen kann wäre das echt super, vielen Dank. Dei XML Datein machen diesen Beitrag zu lang. Wenn doch noch benötigt gerne nachfragen

nono124 · 11. November 2019

Hallo
In Android geht es nicht Statements im Klasserumpf zu verwenden.
Du kannst da nur primitive Datentypen werte zuweisen.

Im Klassenrumpf nur deklariere aber nicht setzen.
Das initialisieren der Variablen gehört in die onCreate.

Frage hast du auch die Activity im Manifest eingetragen?

Jumpyy · 11. November 2019

Hey,
danke für die antwort und ja ich habe die Activity im Manifest eingetragen. Ich probiere es mal mit deinen Tipps. Vielen Dank

LG

Android App crasht immer beim starten

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