Toast
通話ステータスがアイドルのときに振動させたいと思います。これをマニフェスト ファイルに追加しました。
<receiver android:name="IncomingCallInterceptor">
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE"/>
</intent-filter>
</receiver>
これが IncomingCallInterceptor です
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Vibrator;
import android.telephony.TelephonyManager;
import android.widget.Toast;
import android.app.Activity;
public class IncomingCallInterceptor extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent)
{
String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);
String msg = "Phone state changed to " + state;
if (TelephonyManager.EXTRA_STATE_RINGING.equals(state))
{
String incomingNumber = intent.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER);
msg += ". Incoming number is " + incomingNumber;
}
Toast.makeText(context, msg, Toast.LENGTH_LONG).show();
if(msg == "IDLE")
{
ok() ;
}
}
public void ok()
{
Vibrator v = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
v.vibrate(3000);
}
}
}
そして、私はこのエラーを受け取りました:
Description Resource Path Location Type
The method getSystemService(String) is undefined for the type IncomingCallInterceptor IncomingCallInterceptor.java line 39 Java Problem