Hallo Programmierer,
ich habe ein Problem mit meinem Androidspiel. Dabei startet die Main Activity einfach nicht
Code: MainActivity
und als letztes die Fehlermeldung:
Währe cool wenn jemand die Lösung wusste
Scheyschen
ich habe ein Problem mit meinem Androidspiel. Dabei startet die Main Activity einfach nicht
Code: MainActivity
Java:
import android.app.Activity;
import android.os.Bundle;
public class MainActivity extends Activity {
private GameView theGameView;@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(theGameView);
theGameView = new GameView(this);
}
}
Code GameView: import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import de.nikita.bangster.MainActivity;
public class GameView extends SurfaceView {
private List < Sprite > spriteList = new ArrayList < Sprite > ();
private List < Integer > spriteListNum = new ArrayList < Integer > ();
private SurfaceHolder surfaceHolder;
private Bitmap bmp = null;
private Bitmap livesPicture;
private theGameLoopThread thegameLoopThread;
private boolean createSprites = true;
private long lastClick;
private int currentColorNum;
private int lives = 4;
private Paint paintRed, paintBlue, paintGreen, paintYellow;
private Paint currentColor;
private String scoreString;
private String livesString;
private float density;
private MainActivity theMainActivity = new MainActivity();
public GameView(Context context) {
super(context);
theMainActivity = (MainActivity) context;
thegameLoopThread = new theGameLoopThread(this);
surfaceHolder = getHolder();
surfaceHolder.addCallback(new SurfaceHolder.Callback() {
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
boolean retry = true;
thegameLoopThread.setRunning(false);
while (retry) {
try {
thegameLoopThread.join();
retry = false;
} catch (InterruptedException e) {
}
}
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
thegameLoopThread.setRunning(true);
thegameLoopThread.start();
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format,
int width, int height) {
// TODO Auto-generated method stub
}
});
}
protected void onDraw(Canvas canvas) {
}
private void createSprite(int index) {
if (bmp == null);
switch (index) {
case 0:
bmp = BitmapFactory.decodeResource(getResources(),
R.drawable.schwarz);
break;
case 1:
bmp = BitmapFactory.decodeResource(getResources(), R.drawable.rot);
break;
case 2:
bmp = BitmapFactory.decodeResource(getResources(),
R.drawable.arschlecken);
break;
}
Sprite sprite = new Sprite(this, bmp);
spriteList.add(sprite);
spriteListNum.add(index);
}
private void initialSprites() {
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 3; j++)
createSprite(i);
}
createSprites = false;
}
private void rndCreateSprite() {
Random rnd = new Random(System.currentTimeMillis());
int i = rnd.nextInt(4);
createSprite(i);
}
@SuppressLint("ClickableViewAccessibility")@Override
public boolean onTouchEvent(MotionEvent event) {
if (System.currentTimeMillis() - lastClick > 300) {
lastClick = System.currentTimeMillis();
synchronized(getHolder()) {
for (int i = spriteList.size() - 1; i >= 0; i--) {
Sprite sprite = spriteList.get(i);
if (sprite.isTouched(event.getX(), event.getY())) {
rndCreateSprite();
removeSprite(i);
break;
}
}
}
}
return true;
}
private void removeSprite(int index) {
spriteList.remove(index);
spriteListNum.remove(index);
}
}und als letztes die Fehlermeldung:
Code:
07-19 10:47:05.638: E/AndroidRuntime(339): FATAL EXCEPTION: main
07-19 10:47:05.638: E/AndroidRuntime(339): java.lang.RuntimeException: Unable to start activity ComponentInfo{de.nikita.bangster/de.nikita.bangster.MainActivity}: java.lang.NullPointerException
07-19 10:47:05.638: E/AndroidRuntime(339): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
07-19 10:47:05.638: E/AndroidRuntime(339): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
07-19 10:47:05.638: E/AndroidRuntime(339): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
07-19 10:47:05.638: E/AndroidRuntime(339): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
07-19 10:47:05.638: E/AndroidRuntime(339): at android.os.Handler.dispatchMessage(Handler.java:99)
07-19 10:47:05.638: E/AndroidRuntime(339): at android.os.Looper.loop(Looper.java:123)
07-19 10:47:05.638: E/AndroidRuntime(339): at android.app.ActivityThread.main(ActivityThread.java:4627)
07-19 10:47:05.638: E/AndroidRuntime(339): at java.lang.reflect.Method.invokeNative(Native Method)
07-19 10:47:05.638: E/AndroidRuntime(339): at java.lang.reflect.Method.invoke(Method.java:521)
07-19 10:47:05.638: E/AndroidRuntime(339): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
07-19 10:47:05.638: E/AndroidRuntime(339): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
07-19 10:47:05.638: E/AndroidRuntime(339): at dalvik.system.NativeStart.main(Native Method)
07-19 10:47:05.638: E/AndroidRuntime(339): Caused by: java.lang.NullPointerException
07-19 10:47:05.638: E/AndroidRuntime(339): at android.view.ViewGroup.addViewInner(ViewGroup.java:1969)
07-19 10:47:05.638: E/AndroidRuntime(339): at android.view.ViewGroup.addView(ViewGroup.java:1865)
07-19 10:47:05.638: E/AndroidRuntime(339): at android.view.ViewGroup.addView(ViewGroup.java:1845)
07-19 10:47:05.638: E/AndroidRuntime(339): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:217)
07-19 10:47:05.638: E/AndroidRuntime(339): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207)
07-19 10:47:05.638: E/AndroidRuntime(339): at android.app.Activity.setContentView(Activity.java:1658)
07-19 10:47:05.638: E/AndroidRuntime(339): at de.nikita.bangster.MainActivity.onCreate(MainActivity.java:11)
07-19 10:47:05.638: E/AndroidRuntime(339): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
07-19 10:47:05.638: E/AndroidRuntime(339): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
07-19 10:47:05.638: E/AndroidRuntime(339): ... 11 moreWähre cool wenn jemand die Lösung wusste
Scheyschen
Zuletzt bearbeitet von einem Moderator:
