@Override
public boolean processMessage(Message msg) {
Log.d("BoringState", "");
return true;
}
}
class SleepState extends State {
@Override
public void enter() {
Log.d("SleepState", "enter Sleep");
}
@Override
public boolean processMessage(Message msg) {
switch (msg.what) {
case MSG_WAKEUP:
//睡觉醒了去⼯作，⼯作的时候收到饿了的讯号
sendMessage(obtainMessage(MSG_HUNGRY));                    deferMessage(msg);
transitionTo(mWorkState);
break;
case MSG_HALTING:
transitionToHaltingState();
break;
default:
return false;
}
return true;
}
@Override
public void exit() {
Log.d("SleepState", "exit Sleep");
}
}
@Override
protected void onHalting() {
Log.d("PersonStateMachine", "halting");
synchronized (this) {
}
}
class WorkState extends State {
@Override
public void enter() {
Log.d("WorkState", "enter Work");
}
@Override
public boolean processMessage(Message msg) {
switch (msg.what) {
case MSG_HUNGRY:
//⼯作饿了去吃饭，吃饭的时候收到累了的讯号
sendMessage(obtainMessage(MSG_TIRED));
deferMessage(msg);
transitionTo(mEatState);
break;
default:
return false;
switch函数用法举例
}
return true;
}
@Override
public void exit() {
Log.d("WorkState", "exit Work");
}
}
class EatState extends State {
以上图中，初始状态为S4，现在⽬标状态mDestState被设置为S7。

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