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Android Build a Simple Android App (retired 2014) Shaking Things Up The Activity Lifecycle

whats wrong with my java code?

package com.example;

import android.os.Bundle; import android.view.View; import android.hardware.Sensor; import android.hardware.SensorManager;

public class MainActivity extends Activity {

public static String aString;
private SensorManager mSensorManager;
private Sensor mAccelerometer;
private ShakeDetector mShakeDetector;

public void onCreate(Bundle savedInstanceState) {
super.onCreate ( savedInstanceState);

    setContentView(R.layout.activity_main); 

    aString = "This variable is set AFTER the 'otherString' variable in Activity";

    mSensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
    mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
    mShakeDetector = new ShakeDetector();
}

public void onPause() {
super.onPause();
unregisterListener(ShakeDetector );
}

public void onResume() {
    super.onResume();
    mSensorManager.registerListener(mShakeDetector, mAccelerometer, SensorManager.SENSOR_DELAY_UI);
}

}

i believe its something in here

public void onPause() { super.onPause(); unregisterListener(ShakeDetector ); }

Hey Ricky,

It's really difficult for me to help you out unless I know exactly what's happening. Is the program crashing? Is it doing something it's not supposed to do? We don't know.

Also, if you can list your StackTrace from Logcat, I would be able to help you out more.

This is a code challenge.

What is the challenge asking you to do? What's the instructions or objective?

1 Answer

Thanks for the responses but i figured the challenge out :D