7
的內部的Android類com.android.internal.telephony.Call包含一個名爲國家和定義枚舉如下:Android電話堆棧中的不同呼叫狀態代表什麼?
public enum State {
IDLE, ACTIVE, HOLDING, DIALING, ALERTING, INCOMING, WAITING, DISCONNECTED, DISCONNECTING;
public boolean isAlive() {
return !(this == IDLE || this == DISCONNECTED || this == DISCONNECTING);
}
public boolean isRinging() {
return this == INCOMING || this == WAITING;
}
public boolean isDialing() {
return this == DIALING || this == ALERTING;
}
}
什麼不同的狀態代表什麼?