whenever I try to get .tag() My App Crashes. It's been a while and , i can't solve the problem....
public class MainActivity extends AppCompatActivity {
public void translateFrench(View view){
Button button = (Button) view;
Log.i("Nothing", button.getTag().toString());
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
XML:
<android.support.v7.widget.GridLayout
android:layout_width="368dp"
android:layout_height="495dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:columnCount="2"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:rowCount="4">
<Button
android:id="@+id/button1"
android:text="Do you speak \nEnglish?"
app:layout_columnWeight="1"
app:layout_gravity="fill"
app:layout_rowWeight="1"
android:onClick="translateFrench"/>
<Button
android:id="@+id/button2"
android:text="Good Evening"
app:layout_columnWeight="1"
app:layout_gravity="fill"
app:layout_rowWeight="1"
android:onClick="translateFrench"/>
</android.support.v7.widget.GridLayout>
Error Log:
Caused by: java.lang.reflect.InvocationTargetException Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference at
