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;
    }
}