i created CustomTextview as below
public class CustomTextView extends AppCompatTextView {
public CustomTextView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
// im changing font family here .ttf files
}
}
.
<com.android.app.CustomTextView
android:id="@+id/view”
/>
what is the difference between
This
CustomTextView textView = findViewbyId(R.id.view);
and this
TextView textView = findViewbyId(R.id.view);
When i put this TextView textView = findViewbyId(R.id.view); IDE runs without throwing error. Why? Thanks!
A real life comparison:
When you learn to drive a manual transmission car, you can drive almost any manual transmission car. Imagine how bad it would be if you had to learn to drive every different model of car you encounter.
Source (+)
Another example : Mercedes Benz inherits Car class. Benz is always a car and if you say i drive a car (instead of Mercedes Benz), your are not wrong at all, so this is normal that IDE runs without throwing error!