编辑文本密码切换Android

Question

我试图在输入类型为文本密码的编辑文本中显示用户输入的密码。

我实现gesturelistener在切换图标像这个 -

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; 
    } 

我不知道什么是错的，任何帮助将不胜感激。

Answer 1

自支持库v24.2.0。你可以achivie这很容易

您需要做的仅仅是：

1. 设计库一起添加到您的依赖条件

   dependencies { 
       compile "com.android.support:design:25.1.0" 
   } 
   

2. 使用TextInputEditText与TextInputLayout

   <android.support.design.widget.TextInputLayout 
       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"/> 
   </android.support.design.widget.TextInputLayout> 
   

passwordToggleEnabled属性将密码切换显示

在你的根布局不要忘记添加xmlns:app="http://schemas.android.com/apk/res-auto"

您可以通过使用自定义密码切换：

app:passwordToggleDrawable - 可绘制用作密码输入可见性切换图标。
app:passwordToggleTint - 用于密码输入可见性切换的图标。
app:passwordToggleTintMode - 用于应用背景色调的混合模式。

更多详细信息在TextInputLayout documentation。

Answer 2

请尝试以下方法。在这里，我们正在设置一个复合绘图，当点击时将显示或隐藏密码：

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; 
      } 
     }); 
    } 

Answer 3

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; 
    } 

我希望它能工作，谢谢。