Android AndEngine NullPointer创建声音时出现异常
快速问题: 我有这个密码:Android AndEngine NullPointer创建声音时出现异常,android,nullpointerexception,andengine,audio,Android,Nullpointerexception,Andengine,Audio,快速问题: 我有这个密码: public EngineOptions onCreateEngineOptions() { instance = this; mCamera = new org.andengine.engine.camera.Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT); EngineOptions engineOptions = new EngineOptions(true, ScreenOrientation.L
public EngineOptions onCreateEngineOptions() {
instance = this;
mCamera = new org.andengine.engine.camera.Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT);
EngineOptions engineOptions = new EngineOptions(true, ScreenOrientation.LANDSCAPE_SENSOR, new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT), mCamera);
engineOptions.getAudioOptions().setNeedsSound(true);
//engineOptions.getAudioOptions().setNeedsMusic(true);
return engineOptions;
}
及
最后,我在另一个课堂上玩了这个游戏,这个课堂上有这样的活动:
activity.mCurrentScene.registerTouchArea(image);
activity.mCurrentScene.setOnAreaTouchListener(new IOnAreaTouchListener() {
@Override
public boolean onAreaTouched(TouchEvent pSceneTouchEvent,
ITouchArea pTouchArea, float pTouchAreaLocalX,
float pTouchAreaLocalY) {
Zancudo.this.activity.testSound.play();
return false;
}
});
你知道我为什么会遇到空指针异常吗
谢谢大家! 对于您正在使用的播放声音,如下所示
Zancudo.this.activity.testSound.play();
这看起来像是一个问题,因为这里的activity对象没有在Zancudo
类中实例化
要访问testSound,您需要获取Zancudo活动的实例
Zancudo.this.activity.testSound.play();