android 自定义view -- 实现自定义 邮箱验证的Edittext

//onFinishInflate 当View中所有的子控件均被映射成xml后触发   

/**
 * 实现自定义 实现邮箱验证的EidtText
 */
public class CustomEditText extends RelativeLayout {
 
    private Context context;
    private EditText mEditText;
    private ImageView mImage;
 
    public CustomEditText(Context context, AttributeSet attrs) {
        super(context, attrs);
        this.context = context;
        inint();
 
        TypedArray typeArray = context.obtainStyledAttributes(attrs, R.styleable.CustomEditText);
 
        int textColor = typeArray.getColor(R.styleable.CustomEditText_textColors, 0);
        String hintText = typeArray.getString(R.styleable.CustomEditText_hint);
        int textSize = typeArray.getInt(R.styleable.CustomEditText_textSizes, 10);   
        LogUtils.logE(hintText);
        mEditText.setTextColor(textColor);
        mEditText.setHint(hintText);
        mEditText.setTextSize(textSize);
        typeArray.recycle();
 
    }
 
    private void inint() {
        //设置字体的大小
        LayoutInflater inflater = LayoutInflater.from(context);
        View view = inflater.inflate(R.layout.view_custom_eidttext, this);
        mEditText = (EditText) view.findViewById(R.id.edittext);
        mImage = (ImageView) view.findViewById(R.id.image);
    }
 
    //onFinishInflate 当View中所有的子控件均被映射成xml后触发
    @Override
    protected void onFinishInflate() {
        super.onFinishInflate();
        // 文本框的text改变监听
        mEditText.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
                //在text 改变之执行
 
            }
 
            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
                //在text 正在改变的时候执行
 
            }
 
            @Override
            public void afterTextChanged(Editable s) {
                //在text  改变之后执行
                setDrawable();
                LogUtils.logE(s.toString());
            }
        });
    }
 
    // 根据文本框是否为空设置不同的图片
    private void setDrawable() {
        if (checkEmail(mEditText.getText().toString())) {
            mImage.setImageResource(R.mipmap.pass);
            //mImage.setImageResource(nullImgRes);
        } else {
            //mImage.setImageResource(imgRes);
            mImage.setImageResource(R.mipmap.close);
        }
    }
 
    /**
     * 验证邮箱
     *
     * @param email
     * @return
     */
    public static boolean checkEmail(String email) {
        boolean flag = false;
        try {
            String check = "^([a-z0-9A-Z]+[-|_|\\.]?)+[a-z0-9A-Z]@([a-z0-9A-Z]+(-[a-z0-9A-Z]+)?\\.)+[a-zA-Z]{2,}$";
            Pattern regex = Pattern.compile(check);
            Matcher matcher = regex.matcher(email);
            flag = matcher.matches();
        } catch (Exception e) {
            flag = false;
        }
        return flag;
    }
}
 
//attrs 文件

<resources>
    <declare-styleable name="CustomEditText">
        <attr name="textSizes" format="integer"></attr>
        <attr name="textColors" format="color|reference"></attr>
        <attr name="text" format="string"></attr>
        <attr name="hint" format="string"></attr>
    </declare-styleable>
</resources>
 
//布局文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:zhy="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
 
    <newdemo.jeno.designdemo.view.CustomEditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        zhy:textColors="@android:color/holo_red_dark"
        zhy:textSizes="20">
 
    </newdemo.jeno.designdemo.view.CustomEditText>
</LinearLayout>