有没有一个聪明的方法让用户在隐藏和查看密码之间切换在一个android EditText? 许多基于PC的应用程序都允许用户这样做。
当前回答
这是我的解决方案没有使用TextInputEditText和转换方法。
XML
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
style="@style/FormLabel"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/username" />
<EditText
android:id="@+id/loginUsername"
style="@style/EditTextStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:drawableLeft="@drawable/ic_person_outline_black_24dp"
android:drawableStart="@drawable/ic_person_outline_black_24dp"
android:inputType="textEmailAddress"
android:textColor="@color/black" />
<TextView
style="@style/FormLabel"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:text="@string/password" />
<EditText
android:id="@+id/loginPassword"
style="@style/EditTextStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:drawableEnd="@drawable/ic_visibility_off_black_24dp"
android:drawableLeft="@drawable/ic_lock_outline_black_24dp"
android:drawableRight="@drawable/ic_visibility_off_black_24dp"
android:drawableStart="@drawable/ic_lock_outline_black_24dp"
android:inputType="textPassword"
android:textColor="@color/black" />
</LinearLayout>
Java代码
boolean VISIBLE_PASSWORD = false; //declare as global variable befor onCreate()
loginPassword = (EditText)findViewById(R.id.loginPassword);
loginPassword.setOnTouchListener(new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
final int DRAWABLE_LEFT = 0;
final int DRAWABLE_TOP = 1;
final int DRAWABLE_RIGHT = 2;
final int DRAWABLE_BOTTOM = 3;
if (event.getAction() == MotionEvent.ACTION_UP) {
if (event.getRawX() >= (loginPassword.getRight() - loginPassword.getCompoundDrawables()[DRAWABLE_RIGHT].getBounds().width())) {
// your action here
//Helper.toast(LoginActivity.this, "Toggle visibility");
if (VISIBLE_PASSWORD) {
VISIBLE_PASSWORD = false;
loginPassword.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
loginPassword.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_lock_outline_black_24dp, 0, R.drawable.ic_visibility_off_black_24dp, 0);
} else {
VISIBLE_PASSWORD = true;
loginPassword.setInputType(InputType.TYPE_CLASS_TEXT);
loginPassword.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_lock_outline_black_24dp, 0, R.drawable.ic_visibility_black_24dp, 0);
}
return false;
}
}
return false;
}
});
其他回答
如果你想要一个简单的解决方案，你可以使用这个扩展的Android的EditText去这个链接了解更多信息:https://github.com/scottyab/showhidepasswordedittext
将此添加到build.gradle中: 实现“com.github.scottyab: showhidepasswordedittext: 0.8”
然后更改XML文件中的EditText。
来自:< EditText
: < com.scottyab.showhidepasswordedittext.ShowHidePasswordEditText
这是所有。
注意:在XML设计中无法看到它，请尝试在模拟器或物理设备中运行它。
这是我的解决方案没有使用TextInputEditText和转换方法。
XML
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
style="@style/FormLabel"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/username" />
<EditText
android:id="@+id/loginUsername"
style="@style/EditTextStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:drawableLeft="@drawable/ic_person_outline_black_24dp"
android:drawableStart="@drawable/ic_person_outline_black_24dp"
android:inputType="textEmailAddress"
android:textColor="@color/black" />
<TextView
style="@style/FormLabel"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:text="@string/password" />
<EditText
android:id="@+id/loginPassword"
style="@style/EditTextStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:drawableEnd="@drawable/ic_visibility_off_black_24dp"
android:drawableLeft="@drawable/ic_lock_outline_black_24dp"
android:drawableRight="@drawable/ic_visibility_off_black_24dp"
android:drawableStart="@drawable/ic_lock_outline_black_24dp"
android:inputType="textPassword"
android:textColor="@color/black" />
</LinearLayout>
Java代码
boolean VISIBLE_PASSWORD = false; //declare as global variable befor onCreate()
loginPassword = (EditText)findViewById(R.id.loginPassword);
loginPassword.setOnTouchListener(new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
final int DRAWABLE_LEFT = 0;
final int DRAWABLE_TOP = 1;
final int DRAWABLE_RIGHT = 2;
final int DRAWABLE_BOTTOM = 3;
if (event.getAction() == MotionEvent.ACTION_UP) {
if (event.getRawX() >= (loginPassword.getRight() - loginPassword.getCompoundDrawables()[DRAWABLE_RIGHT].getBounds().width())) {
// your action here
//Helper.toast(LoginActivity.this, "Toggle visibility");
if (VISIBLE_PASSWORD) {
VISIBLE_PASSWORD = false;
loginPassword.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
loginPassword.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_lock_outline_black_24dp, 0, R.drawable.ic_visibility_off_black_24dp, 0);
} else {
VISIBLE_PASSWORD = true;
loginPassword.setInputType(InputType.TYPE_CLASS_TEXT);
loginPassword.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_lock_outline_black_24dp, 0, R.drawable.ic_visibility_black_24dp, 0);
}
return false;
}
}
return false;
}
});
你可以使用下面的代码显示/隐藏密码:
XML代码:
<EditText
android:id="@+id/etPassword"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="21dp"
android:layout_marginTop="14dp"
android:ems="10"
android:inputType="textPassword" >
<requestFocus />
</EditText>
<CheckBox
android:id="@+id/cbShowPwd"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/etPassword"
android:layout_below="@+id/etPassword"
android:text="@string/show_pwd" />
JAVA代码:
EditText mEtPwd;
CheckBox mCbShowPwd;
mEtPwd = (EditText) findViewById(R.id.etPassword);
mCbShowPwd = (CheckBox) findViewById(R.id.cbShowPwd);
mCbShowPwd.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// checkbox status is changed from uncheck to checked.
if (!isChecked) {
// show password
mEtPwd.setTransformationMethod(PasswordTransformationMethod.getInstance());
} else {
// hide password
mEtPwd.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
}
}
});
我的Kotlin扩展。编写一次，随处使用
fun EditText.tooglePassWord() {
this.tag = !((this.tag ?: false) as Boolean)
this.inputType = if (this.tag as Boolean)
InputType.TYPE_TEXT_VARIATION_PASSWORD
else
(InputType.TYPE_CLASS_TEXT or InputType.TYPE_TEXT_VARIATION_PASSWORD)
this.setSelection(this.length()) }
您可以将此方法保存在任何文件中，并在任何地方使用它 像这样使用它
ivShowPassword.click { etPassword.tooglePassWord() }
其中ivShowPassword是点击imageview(眼睛)和etPassword是编辑
非常简单的形式:
private fun updatePasswordVisibility(editText: AppCompatEditText) {
if (editText.transformationMethod is PasswordTransformationMethod) {
editText.transformationMethod = null
} else {
editText.transformationMethod = PasswordTransformationMethod()
}
editText.setSelection(editText.length())
}
希望能有所帮助。
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