Android 编辑文本密码切换

我试图向用户显示编辑文本中键入的密码，其输入类型为文本密码

我在切换图标上实现了gesturelistener，如下所示-

public boolean onTouch(View view, MotionEvent motionEvent) {
        switch (view.getId())
        {
            case R.id.ivPasswordToggle:

                switch ( motionEvent.getAction() ) {
                    case MotionEvent.ACTION_DOWN:
                        Toast.makeText(getContext(),"show",Toast.LENGTH_SHORT).show();
                        etPassword.setInputType(InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
                        break;
                    case MotionEvent.ACTION_UP:
                        etPassword.setInputType(InputType.TYPE_TEXT_VARIATION_PASSWORD | InputType.TYPE_CLASS_TEXT);
                        Toast.makeText(getContext(),"hide",Toast.LENGTH_SHORT).show();
                        break;
                }
                break;
        }
        return true;
    }

---

我不知道出了什么问题，任何帮助都将不胜感激。

尝试以下方法。在这里，我们正在设置一个复合可绘制文件，单击该文件将显示或隐藏密码：

private boolean passwordShown = false;

private void addPasswordViewToggle() {
        getPasswordEditText().setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                final int DRAWABLE_RIGHT = 2; //index

                if (event.getAction() == MotionEvent.ACTION_UP) {
                    if (event.getRawX() >= (getPasswordEditText().getRight() - getPasswordEditText().getCompoundDrawables()[DRAWABLE_RIGHT].getBounds().width())) {
                        if (passwordShown) {
                            passwordShown = false;
                            // 129 is obtained by bitwise ORing InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD
                            getPasswordEditText().setInputType(129);

                            // Need to call following as the font is changed to mono-space by default for password fields
                            getPasswordEditText().setTypeface(Typeface.SANS_SERIF);
                            getPasswordEditText().setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.locked_icon, 0); // This is lock icon
                        } else {
                            passwordShown = true;
                            getPasswordEditText().setInputType(InputType.TYPE_TEXT_VARIATION_PASSWORD);

                            getPasswordEditText().setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.unlocked_icon, 0); // Unlock icon
                        }

                        return true;
                    }
                }
                return false;
            }
        });
    }

请尝试此代码

public boolean onTouch(View view, MotionEvent motionEvent) {
        switch (view.getId())
        {
            case R.id.ivPasswordToggle:

                switch ( motionEvent.getAction() ) {
                    case MotionEvent.ACTION_DOWN:
                        Toast.makeText(getContext(),"show",Toast.LENGTH_SHORT).show();
                         etPassword.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
                        break;
                    case MotionEvent.ACTION_UP:
                         etPassword.setTransformationMethod(PasswordTransformationMethod.getInstance());
                        Toast.makeText(getContext(),"hide",Toast.LENGTH_SHORT).show();
                        break;
                }
                break;
        }
        return true;
    }

我希望它能起作用，谢谢。

（为AndroidX更新）

从支持库v24.2.0开始。你可以很容易地做到这一点

您需要做的只是：

将设计库添加到从属项中

 dependencies {
     implementation "com.google.android.material:material:1.2.1"
 }

将

textInputText

与

TextInputLayout

 <com.google.android.material.textfield.TextInputLayout
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:id="@+id/etPasswordLayout"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     app:passwordToggleEnabled="true">

     <android.support.design.widget.TextInputEditText
         android:id="@+id/etPassword"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:hint="@string/password_hint"
         android:inputType="textPassword"/>
 </com.google.android.material.textfield.TextInputLayout>

如果您不想要任何额外的bool或依赖项，那么

    <EditText
        android:id="@+id/et_input_pass"
        android:layout_width="match_parent"
        android:layout_height="48dp"
        android:layout_marginTop="3dp"
        android:layout_marginStart="56dp"
        android:layout_marginEnd="56dp"
        android:hint="Password"
        android:inputType="textPassword"
        android:singleLine="true"
        android:textSize="13sp"
        android:background="@color/transparent"
        android:theme="@style/MyEditText" />

就这样
 应用程序：passwordToggleEnabled=“true”

如果要使用EditText或AppCompatEditText，可以通过以下方式实现所需的输出：

<androidx.constraintlayout.widget.ConstraintLayout
                android:id="@+id/layout_password"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/spinner_role"
                >

                <androidx.appcompat.widget.AppCompatEditText
                    android:id="@+id/edit_text_password"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="10dp"
                    android:autofillHints="@string/password"
                    android:hint="@string/password"
                    android:inputType="textPassword"
                    android:textSize="16sp"
                    app:backgroundTint="#59A6B6"
                    app:layout_constraintStart_toStartOf="parent"
                    app:layout_constraintTop_toTopOf="parent" />

                <androidx.appcompat.widget.AppCompatImageView
                    android:id="@+id/button_password_toggle"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginEnd="4dp"
                    android:src="@drawable/ic_visibility_off"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintTop_toTopOf="@+id/register_user_password_et" />

            </androidx.constraintlayout.widget.ConstraintLayout>

我的祝酒词工作正常，但对编辑文本没有影响谢谢。代码工作正常，但每次我单击drawable时，编辑文本光标都会转到第一个位置在两种切换情况下尝试此操作。。。。。etPassword.setSelection（etPassword.getText（）.length（））；&如果它不起作用，请告诉我。我得到了答案，我必须添加edittext.setSelection（位置）。在这两者中，操作向下和操作向上。默认情况下，我希望密码不可见。如何实现此功能如何实现与支持库23.4.0相同的功能如何删除背景水平线？app:endIconMode=“password\u toggle”此答案与几年前发布的已接受答案有何不同？请重新考虑现有答案比粘贴同样答案。
<com.google.android.material.textfield.TextInputLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:passwordToggleEnabled="true">

    <androidx.appcompat.widget.AppCompatEditText
        android:id="@+id/etPassword"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Enter Password"
        android:inputType="textPassword"
        android:maxLines="1" />

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

 fragmentLoginBinding.imageViewEye.setOnClickListener(v -> {
        if (!isPasswordVisible) {
            fragmentLoginBinding.editTextPassword.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
            fragmentLoginBinding.imageViewEye.setImageDrawable(getResources().getDrawable(R.mipmap.feather_eye_crossed));
            isPasswordVisible = true;
        } else {
            fragmentLoginBinding.editTextPassword.setTransformationMethod(PasswordTransformationMethod.getInstance());
            fragmentLoginBinding.imageViewEye.setImageDrawable(getResources().getDrawable(R.mipmap.feather_eye));
            isPasswordVisible = false;
        }
    });

<androidx.constraintlayout.widget.ConstraintLayout
                android:id="@+id/layout_password"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/spinner_role"
                >

                <androidx.appcompat.widget.AppCompatEditText
                    android:id="@+id/edit_text_password"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="10dp"
                    android:autofillHints="@string/password"
                    android:hint="@string/password"
                    android:inputType="textPassword"
                    android:textSize="16sp"
                    app:backgroundTint="#59A6B6"
                    app:layout_constraintStart_toStartOf="parent"
                    app:layout_constraintTop_toTopOf="parent" />

                <androidx.appcompat.widget.AppCompatImageView
                    android:id="@+id/button_password_toggle"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginEnd="4dp"
                    android:src="@drawable/ic_visibility_off"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintTop_toTopOf="@+id/register_user_password_et" />

            </androidx.constraintlayout.widget.ConstraintLayout>

if (registerUserBinding.editTextPassword.transformationMethod.equals(
            PasswordTransformationMethod.getInstance()
        )
    ) {
        registerUserBinding.registerUserPasswordEt.transformationMethod =
            HideReturnsTransformationMethod.getInstance()
        registerUserBinding.buttonPasswordToggle.setImageDrawable(
            ContextCompat.getDrawable(
                registerUserBinding.registerUserPasswordEt.context,
                R.drawable.ic_visibility
            )
        )

    } else {
        registerUserBinding.editTextPassword.transformationMethod =
            PasswordTransformationMethod.getInstance()
        registerUserBinding.buttonPasswordToggle.setImageDrawable(
            ContextCompat.getDrawable(
                registerUserBinding.registerUserPasswordEt.context,
                R.drawable.ic_visibility_off
            )
        )
    }