I am making a library that can be used to incorporate breaking and entering detection into any application
There is an arduino set to the alarm of the house which sends an SMS to a specific phone upon trigger
Within my sdk I register an sms receiver which upon receiving an sms with a specific text, should show a full screen activity (on top of the lockscreen too) that will alert the user
I created an application to test this behaviour
the application's package is : com.example.demo
the library's package is : com.example.sdk
the sms receiver looks like this:
class SMSReceiver : BroadcastReceiver() {
companion object {
const val TAG = "SMSReceiver"
}
private val logger by lazy { Injections.logger }
override fun onReceive(context: Context?, intent: Intent?) {
logger.log(TAG) { "Got sms" }
val ctx = context ?: return
val bundle = intent?.extras ?: return
val format = bundle.getString("format") ?: return
val pdus = (bundle["pdus"] as? Array<*>) ?: return
for (idx in pdus.indices) {
val pdu = pdus[idx] as? ByteArray ?: continue
val msg = SmsMessage.createFromPdu(pdu, format)
if (msg.messageBody.startsWith("theft event", true)) {
logger.log(TAG) { "Got theft event" }
abortBroadcast()
showTheftActivity(ctx, msg.messageBody)
break
}
}
}
private fun showTheftActivity(context: Context, messageBody: String) {
val intent = Intent(context, TheftActivity::class.java)
intent.addFlags(Intent.FLAG_FROM_BACKGROUND)
.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
// .addCategory(Intent.CATEGORY_LAUNCHER)
val location = messageBody.split(" ").getOrNull(2)
if (location != null) {
val coords = location.split(",")
if (coords.size == 2) {
val x = coords[0].toBigDecimalOrNull()
val y = coords[1].toBigDecimalOrNull()
if (x != null && y != null) {
intent.putExtra(TheftActivity.X, x.toString())
intent.putExtra(TheftActivity.Y, y.toString())
}
}
}
context.startActivity(intent)
}
}
the activity that should show on top of everything is this :
class TheftActivity : Activity() {
companion object {
const val X = "locationX"
const val Y = "locationY"
}
private val x: String? by lazy { intent.getStringExtra(X) }
private val y: String? by lazy { intent.getStringExtra(Y) }
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_theft)
val location = findViewById<Button>(R.id.locate)
if (x != null && y != null) {
location.setOnClickListener { Toast.makeText(applicationContext, "Going to $x , $y", Toast.LENGTH_SHORT).show() }
location.isEnabled = true
finish()
} else {
location.isEnabled = false
}
findViewById<Button>(R.id.cancel).setOnClickListener {
finish()
}
turnScreenOnAndKeyguardOff()
}
private fun turnScreenOnAndKeyguardOff() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) {
setShowWhenLocked(true)
setTurnScreenOn(true)
} else {
window.addFlags(
WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
or WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
)
}
with(getSystemService(Context.KEYGUARD_SERVICE) as KeyguardManager) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
requestDismissKeyguard(this@TheftActivity, null)
}
}
}
override fun onDestroy() {
super.onDestroy()
turnScreenOffAndKeyguardOn()
}
private fun turnScreenOffAndKeyguardOn() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) {
setShowWhenLocked(false)
setTurnScreenOn(false)
} else {
window.clearFlags(
WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
or WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
)
}
}
}
and the sdk's android manifest contains this:
<application>
<activity
android:name=".ui.TheftActivity"
android:configChanges="orientation|keyboardHidden|screenSize"
android:excludeFromRecents="true"
android:label="@string/title_activity_theft"
android:showOnLockScreen="true"
android:theme="@style/Theme.Sdk.Fullscreen" />
<receiver
android:name=".receivers.SMSReceiver"
android:enabled="true"
android:exported="true"
android:permission="android.permission.BROADCAST_SMS">
<intent-filter>
<action android:name="android.provider.Telephony.SMS_RECEIVED" />
</intent-filter>
</receiver>
</application>
when testing this on an emulator I send the sms to trigger the theft event
if the activity for testing (the one in the com.example.demo package) is not closed then it is brought to the front , but if it is closed nothing happens (though I do see the log messages from the receiver)
how can I make my sms receiver open the TheftActivity instead of the main activity from the main package?
edit: if it helps, the theft activity seems to start and then get immediately destroyed
