android获取SIM卡状态

最近遇到需要获取SIM卡状态，发现可以通过两种方式获得

1.android.telephony.TelephonyManager中的getSimState()来获得，

public
int getSimState() {

//Do-not-delete-multisim-flag
begin

if
(SIM_COUNT_CONFIG_MULTISIM) {

if
(DEBUG) Log.d(TAG, "@@ getSimState() for linkId: " + getDefaultPSSim());

return
getSimStateMSMS(getDefaultPSSim());

}

//Do-not-delete-multisim-flag
end

String
prop = SystemProperties.get(TelephonyProperties.PROPERTY_SIM_STATE);

if
("ABSENT".equals(prop)) {

return
SIM_STATE_ABSENT;

}

else
if ("PIN_REQUIRED".equals(prop)) {

return
SIM_STATE_PIN_REQUIRED;

}

else
if ("PUK_REQUIRED".equals(prop)) {

return
SIM_STATE_PUK_REQUIRED;

}

else
if ("NETWORK_LOCKED".equals(prop)) {

return
SIM_STATE_NETWORK_LOCKED;

}

else
if ("READY".equals(prop)) {

return
SIM_STATE_READY;

}

else
{

return
SIM_STATE_UNKNOWN;

}

}

2.通过导入import com.android.internal.telephony.TelephonyProperties和

import android.os.SystemProperties;

来获得SystemProperties.get(TelephonyProperties.PROPERTY_SIM_STATE)的值如果是"READY"即是有卡，"UNKNOW"即无卡