How to Change programmatically Edittext Cursor Color in android?

Question

In android we can change the cursor color via:

android:textCursorDrawable=\"@drawable/black_color_cursor\".

How can we do this dynamically?

Answer 1

android:textCursorDrawable="@null"

Then in the application:

final EditText input = new EditText(nyactivity);
input.setTextColor(getResources().getColor(R.color.black));

Get from here

Answer 2

This is a rewritten version of the function from @Jared Rummler with a couple of improvements:

• Support for Android 4.0.x
• The special getDrawable(Context, int) function sience the getDrawable(int) is deprecated for API 22 and above.

private static final Field
        sEditorField,
        sCursorDrawableField,
        sCursorDrawableResourceField;

static {
    Field editorField = null;
    Field cursorDrawableField = null;
    Field cursorDrawableResourceField = null;
    boolean exceptionThrown = false;
    try {
        cursorDrawableResourceField = TextView.class.getDeclaredField("mCursorDrawableRes");
        cursorDrawableResourceField.setAccessible(true);
        final Class<?> drawableFieldClass;
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
            drawableFieldClass = TextView.class;
        } else {
            editorField = TextView.class.getDeclaredField("mEditor");
            editorField.setAccessible(true);
            drawableFieldClass = editorField.getType();
        }
        cursorDrawableField = drawableFieldClass.getDeclaredField("mCursorDrawable");
        cursorDrawableField.setAccessible(true);
    } catch (Exception e) {
        exceptionThrown = true;
    }
    if (exceptionThrown) {
        sEditorField = null;
        sCursorDrawableField = null;
        sCursorDrawableResourceField = null;
    } else {
        sEditorField = editorField;
        sCursorDrawableField = cursorDrawableField;
        sCursorDrawableResourceField = cursorDrawableResourceField;
    }
}

public static void setCursorColor(EditText editText, int color) {
    if (sCursorDrawableField == null) {
        return;
    }
    try {
        final Drawable drawable = getDrawable(editText.getContext(), 
                sCursorDrawableResourceField.getInt(editText));
        drawable.setColorFilter(color, PorterDuff.Mode.SRC_IN);
        sCursorDrawableField.set(Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN
                ? editText : sEditorField.get(editText), new Drawable[] {drawable, drawable});
    } catch (Exception ignored) {
    }
}

private static Drawable getDrawable(Context context, int id) {
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
        return context.getResources().getDrawable(id);
    } else {
        return context.getDrawable(id);
    }
}

Answer 3

2019 Updated: working smooth and easy https://material.io/develop/android/docs/getting-started/

If you are using material component just simply use textCursorDrawable with color or your custom drawable.

    <com.google.android.material.textfield.TextInputLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="12dp">

        <com.google.android.material.textfield.TextInputEditText
            android:layout_width="match_parent"
            android:textCursorDrawable="@color/red"
            android:cursorVisible="true"
            android:layout_height="wrap_content" />

    </com.google.android.material.textfield.TextInputLayout>