TextInputLayout setError method throws ClassCastException in 24.2.0

Question

I updated support lib version to 24.2.0 and my registration screen is dead now. The problem is in the TextInputLayout, I have two methods:

    protected void         


        

Answer 1

You can check the code of the TextInputLayout v24.2.x.
Now it works with a FrameLayout.

public TextInputLayout(Context context, AttributeSet attrs, int defStyleAttr) {
    // Can't call through to super(Context, AttributeSet, int) since it doesn't exist on API 10
    super(context, attrs);
    //...
    mInputFrame = new FrameLayout(context);
    mInputFrame.setAddStatesFromChildren(true);
    addView(mInputFrame);

    //....

}

@Override
public void addView(View child, int index, final ViewGroup.LayoutParams params) {
    if (child instanceof EditText) {
        mInputFrame.addView(child, new FrameLayout.LayoutParams(params));
        //...
     } else {
        // Carry on adding the View...
        super.addView(child, index, params);
    }
}

where mInputFrame is a FrameLayout.

It is the reason of your issue (the parent is a FrameLayout).

java.lang.ClassCastException: android.widget.FrameLayout cannot be cast to android.support.design.widget.TextInputLayout

You should use the TextInputLayout as parameter instead of navigating in the view hierarchy.