如何监控SIM卡状态变化如何监控SIM卡状态变化(How to monitor SIM state

我希望能够做一些东西时，需要SIM卡的PIN当SIM状态变化，即播放声音，但我认为是可以通过这个广播接收机截获没有广播事件......对于注册android.intent.action .PHONE_STATE不只能告诉你，当呼叫状态的变化..另一种可以开始是在一个LISTEN_SERVICE_STATE注册一个PhoneStateListener和反应的服务（状态是当OUT-OF-STATE它可以得到的SIM从TelephonyManager状态看，如果状态SIM_STATE_PIN_REQUIRED）。所以，我的问题是：

1）是否有，我可以用它来拦截SIM状态改变或服务状态变化的任何广播意图是什么？

2）它是一个坏主意，在服务中安装一个PhoneStateListener，并用它在手机状态的通知，交付意图服务本身改由PhoneStateListener收到？

Answer 1:

这样做的目的android.intent.action.SIM_STATE_CHANGED在广播SIM状态变化时。例如，在我与T-Mobile的SIM卡的HTC Desire，如果我把设备进入飞行模式下意图广播：

意图：android.intent.action.SIM_STATE_CHANGED与演员：SS = NOT_READY，原因= NULL

如果我再取出来的飞行模式，下面的意图是广播：

意图：android.intent.action.SIM_STATE_CHANGED与演员：SS =锁定，原因= PIN
意图：与演员android.intent.action.SIM_STATE_CHANGED：SS = READY，原因= NULL
意图：与演员android.intent.action.SIM_STATE_CHANGED：SS = IMSI，原因= NULL
意图：与演员android.intent.action.SIM_STATE_CHANGED：SS =受压，原因= NULL

这可能是不同厂家和不同型号不同的表现。正如他们所说，“您的情况可能会有所不同。”

Answer 2:

大卫的答案是当场上。我想添加一些示例代码，以帮助人们开始实现这样的状态监视器。

/**
 * Handles broadcasts related to SIM card state changes.
 * <p>
 * Possible states that are received here are:
 * <p>
 * Documented:
 * ABSENT
 * NETWORK_LOCKED
 * PIN_REQUIRED
 * PUK_REQUIRED
 * READY
 * UNKNOWN
 * <p>
 * Undocumented:
 * NOT_READY (ICC interface is not ready, e.g. radio is off or powering on)
 * CARD_IO_ERROR (three consecutive times there was a SIM IO error)
 * IMSI (ICC IMSI is ready in property)
 * LOADED (all ICC records, including IMSI, are loaded)
 * <p>
 * Note: some of these are not documented in
 * https://developer.android.com/reference/android/telephony/TelephonyManager.html
 * but they can be found deeper in the source code, namely in com.android.internal.telephony.IccCardConstants.
 */
public class SimStateChangedReceiver extends BroadcastReceiver {

    /**
     * This refers to com.android.internal.telehpony.IccCardConstants.INTENT_KEY_ICC_STATE.
     * It seems not possible to refer it through a builtin class like TelephonyManager, so we
     * define it here manually.
     */
    private static final String EXTRA_SIM_STATE = "ss";

    @Override
    public void onReceive(Context context, Intent intent) {

        String state = intent.getExtras().getString(EXTRA_SIM_STATE);
        if (state == null) {
            return;
        }

        // Do stuff depending on state   
        switch (state) {      
            case "ABSENT": break;
            case "NETWORK_LOCKED": break;
            // etc.
        }
    }
}