Android password visibility toggle not working with support library 25?

Try it this way.

<android.support.design.widget.TextInputLayout   android:layout_width="match_parent"   android:layout_height="wrap_content"   app:passwordToggleEnabled="true"><EditText    android:id="@+id/returning_password"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:hint="@string/prompt_password"    android:inputType="textPassword"    android:maxLines="1"    android:textSize="14sp" /></android.support.design.widget.TextInputLayout>

This might be helpful for you!!

The TextInputLayout password toggle is now disabled by default to avoid unnecessarily overwriting developer-specified end drawables. It may be manually enabled via the passwordToggleEnabled XML attribute.

Recent Support Library Revisions

if you use Jetpack then

add these dependencies

implementation 'com.google.android.material:material:1.0.0'

and add app:passwordToggleEnabled="true" in xml and one more thing, use inputType= textPassword and if you use rather than this then toggle button won't be shown.

Instead of using

<android.support.design.widget.TextInputLayout   android:layout_width="match_parent"   android:layout_height="wrap_content"   app:passwordToggleEnabled="true"><EditText    android:id="@+id/returning_password"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:hint="@string/prompt_password"    android:inputType="textPassword"    android:maxLines="1"    android:textSize="14sp" /></android.support.design.widget.TextInputLayout>

, you need to use

<com.google.android.material.textfield.TextInputLayout android:layout_width="match_parent"   android:layout_height="wrap_content"   app:passwordToggleEnabled="true"><EditText    android:id="@+id/returning_password"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:hint="@string/prompt_password"    android:inputType="textPassword"    android:maxLines="1"    android:textSize="14sp" /></com.google.android.material.textfield.TextInputLayout>

You don't need to add following:

app:passwordToggleEnabled="true"

just change your dependency to:

compile 'com.android.support:design:25.0.0'

That's the same bug I faced too while updating dependency.

Edit:

Now

app:passwordToggleEnabled="true"

is working with,

compile 'com.android.support:design:25.3.0'