设置TextView的密码效果以及跑马灯效果

密码效果以及跑马灯效果：

　

xml:

 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical" >

     <CheckBox
         android:id="@+id/chk_01"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:text="保存账号及密码" />

     <EditText
         android:id="@+id/et_logName"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:hint="Please input your LogName" />

     <EditText
         android:id="@+id/et_logPassword"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:hint="Please input your PassWord" />

     <Button
         android:id="@+id/btn_save"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:text="保存" />

     <com.wyl.fragementtest.MaqueeText
         android:id="@+id/tv_01_pmd"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:ellipsize="marquee"
         android:focusable="true"
         android:focusableInTouchMode="true"
         android:singleLine="true"
         android:text="将文本框的内容以明文显示:editText1.setTransformationMethod(HideReturnsTransformationMethod.getInstance());" />

     <com.wyl.fragementtest.MaqueeText
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:ellipsize="marquee"
         android:focusable="true"
         android:focusableInTouchMode="true"
         android:marqueeRepeatLimit="marquee_forever"
         android:singleLine="true"
         android:text="editText1.setTransformationMethod(PasswordTransformationMethod.getInstance());//将文本框的内容以密码显示" />

     <com.wyl.fragementtest.MaqueeText
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:ellipsize="marquee"
         android:focusable="true"
         android:focusableInTouchMode="true"
         android:marqueeRepeatLimit="marquee_forever"
         android:singleLine="false"
         android:text="将文本框的内容以密码显示：editText1.setTransformationMethod(PasswordTransformationMethod.getInstance());将文本框的内容以明文显示:editText1.setTransformationMethod(HideReturnsTransformationMethod.getInstance());" />

 </LinearLayout>

MaqueeText.java

 package com.wyl.fragementtest;

 import android.content.Context;
 import android.util.AttributeSet;
 import android.widget.TextView;

 public class MaqueeText extends TextView{

     public MaqueeText(Context context) {
         super(context);
         // TODO Auto-generated constructor stub
     }

     public MaqueeText(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
         // TODO Auto-generated constructor stub
     }

     public MaqueeText(Context context, AttributeSet attrs) {
         super(context, attrs);
         // TODO Auto-generated constructor stub
     }
     @Override
     public boolean isFocused() {
         //返回true，表示MaqueeText控件活的焦点，只有获得了焦点textView才会有跑马灯效果
         return true;
     }
 }