当我在Speak()
中调用onCreate()
时会产生错误
private void speak() {
mTTS.speak("Hello, If Your Case Is Emergency CALL 911 ",TextToSpeech.QUEUE_FLUSH, null);
}
错误:
原因:java.lang.NullPointerException:尝试调用虚拟方法'int android.speech.tts.TextToSpeech.speak(java.lang.String,int,java.util.HashMap)'引用空对象在edu.birzeit.myapplication.home.speak(home.java:197)在edu.birzeit.myapplication.home.onCreate(home.java:39)