Programmatically get hint text value in android Edittext

Question

I have to change theTypeface of EditText dynamically and also process the hint text if the Typeface changed. I simply do as following:

<android.support.design.widget.TextInputLayout
    android:id="@+id/input_layout_textBox"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <EditText
        android:id="@+id/textBox"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="@string/hint_date" />
</android.support.design.widget.TextInputLayout>

And my code snippet is as follow:

EditText textBox = (EditText) findViewById(R.id.textBox);
Typeface tf = Typeface.createFromAsset(this, "myfont.ttf");
textBox.setTypeface(tf);
String hintText = textBox.getHint().toString(); //Got NullPointerException here....
String newText = processText(hintText); //This will process the hint text;
textBox.setHint(newText);

When I runt the program, I got the following exception:

java.lang.NullPointerException: Attempt to invoke interface method 'java.lang.String java.lang.CharSequence.toString()' on a null object reference

Please help me to solve this problem.

Answer 1

We need to look at your_layout.xml first to determine that, but you're probably using the design support lib.

If so, you can get your hints as follows:

((TextInputLayout)textBox.getParent()).getHint();

Note

This has already been answered here. (Although we needed to make sure that you were using the design support lin to mark your question as duplicate)