Button to vibrate makes android app force close
-
26-06-2021 - |
Pergunta
Im just making a simple app that will vibrate when the button is clicked, but for some reason when i click the button the app says it unexpectedly stopped and needed to force close, below is the source code to the main java file and i have used the android vibrate permission in my manifest. can someone tell me why every time I click the vibrate button it gives me the error that it unexpectedly stopped?
package com.test;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Vibrator;
import android.view.View;
import android.widget.EditText;
public class Main extends Activity {
public final static String EXTRA_MESSAGE = "com.test.MESSAGE";
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
/* Called when the user clicks the button */
public void sendMessage(View view) {
// do something in response to button
Intent intent = new Intent(this, DisplayMessageActivity.class);
EditText editText = (EditText) findViewById(R.id.edit_message);
String message = editText.getText().toString();
intent.putExtra(EXTRA_MESSAGE, message);
startActivity(intent);
}
public void vibrateMe() {
Vibrator vibrate = (Vibrator)getSystemService(Context.VIBRATOR_SERVICE);
vibrate.vibrate(500);
}
public void stopVibrating(Vibrator vibrate) {
vibrate.cancel();
}
}
Solução
You have to change your vibrateMe()
to vibrateMe(View v)
if you use android:onClick="vibrateMe"
For instance, if you specify android:onClick="sayHello", you must declare a public void sayHello(View v) method of your context (typically, your Activity).
Outras dicas
public void stopVibrating(Vibrator vibrate) {
vibrate.cancel();
}
remove this and then check.