TextInputLayout.java 文件源码

void passwordVisibilityToggleRequested() {
  if (mPasswordToggleEnabled) {
    // Store the current cursor position
    final int selection = mEditText.getSelectionEnd();

    if (hasPasswordTransformation()) {
      mEditText.setTransformationMethod(null);
      mPasswordToggledVisible = true;
    } else {
      mEditText.setTransformationMethod(PasswordTransformationMethod.getInstance());
      mPasswordToggledVisible = false;
    }

    mPasswordToggleView.setChecked(mPasswordToggledVisible);

    // And restore the cursor position
    mEditText.setSelection(selection);
  }
}