Java 是否可以在材料设计中设置计时器以显示/隐藏密码?
因此,我使用androidx库,并在xml中实现了以下代码来显示/隐藏密码Java 是否可以在材料设计中设置计时器以显示/隐藏密码?,java,android,android-textinputlayout,material-components,material-components-android,Java,Android,Android Textinputlayout,Material Components,Material Components Android,因此,我使用androidx库,并在xml中实现了以下代码来显示/隐藏密码 <com.google.android.material.textfield.TextInputLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="@string/hint_text" app:endIconMode="password_togg
<com.google.android.material.textfield.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/hint_text"
app:endIconMode="password_toggle">
<com.google.android.material.textfield.TextInputEditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="textPassword"/>
</com.google.android.material.textfield.TextInputLayout>
我想做的是,当用户输入密码时。。。当用户点击眼睛图标显示密码时。。。它应该在10秒后隐藏密码,眼睛图标会自动改变 要显示/隐藏密码,您可以使用以下方法:
TextInputLayout password = findViewById(R.id......);
EditText editText = password.getEditText();
if (editText == null) {
return;
}
// Store the current cursor position
final int selection = editText.getSelectionEnd();
//This is core condition. It is the key to know if the password is just visible or not.
if (editText != null
&& editText.getTransformationMethod() instanceof PasswordTransformationMethod) {
editText.setTransformationMethod(null);
} else {
editText.setTransformationMethod(PasswordTransformationMethod.getInstance());
}
// And restore the cursor position
editText.setSelection(selection);
这就是我如何添加计时器和隐藏密码的方法。在这里接受了Gabriele Mariotti的帮助您好,感谢您的快速响应。。。实际上,显示/隐藏密码对我来说不是问题。如果密码是可见的,它只需要在上面加一个计时器,如果用户没有隐藏密码,就把它隐藏起来password@DarpalDhyani要知道密码是否可见,请参见以下行:
if(editText!=null&&editText.getTransformationMethod()instanceof PasswordTransformationMethod)
。它可以通过单击结束图标或通过代码来工作。放一个计时器,测试条件,然后显示/隐藏密码。好的,我知道了,谢谢你让我明白。如果您有任何资源可以查看getTransformationMethod()
和PasswordTransformationMethod
,也将不胜感激。。。。。以前从未使用过它。TransformationMethods
被TextView
用于替换字符等操作。这是一个“旧类”,用点替换字符。谢谢你的帮助。它解决了我的问题。用上面的代码设置计时器解决了这个问题。为什么要这样做?看起来可能很烦人。
private void showHidePassword() {
textInputLayout = activityBinding.textInputLayout;
textInputEditText = activityBinding.editTextPassword;
textInputEditText = (TextInputEditText) textInputLayout.getEditText();
if (textInputEditText == null) {
return;
}
textInputEditText.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
try {
if (textInputEditText.getTransformationMethod() == null) {
stopHandlerPassword();
setTimerPasswordEditText();
} else {
stopHandlerPassword();
}
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
public void afterTextChanged(Editable s) {
}
});
}
private void setTimerPasswordEditText() {
passwordEditTextRunnable = new Runnable() {
public void run() {
try {
if (textInputEditText != null && textInputEditText.getTransformationMethod() == null) {
hidePassword();
}
} catch (RuntimeException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
};
passwordHandler.postDelayed(passwordEditTextRunnable, 8000);
}
private void stopHandlerPassword() {
passwordHandler.removeCallbacks(passwordEditTextRunnable);
}
private void hidePassword() {
if (textInputEditText != null) {
textInputEditText.setTransformationMethod(PasswordTransformationMethod.getInstance());
try {
int selection = textInputEditText.getSelectionEnd();
textInputEditText.setSelection(selection);
}
} catch (Exception e) {
e.printStackTrace();
}
}
}