Android自定义View仿支付宝输入六位密码功能

<?xml version="1.0" encoding="utf-8"?>
<relativelayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/bg_pop_window"
android:orientation="vertical">
<linearlayout
android:id="@+id/ll_main_password"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignparentbottom="true"
android:background="#fff"
android:orientation="vertical">
<relativelayout
android:layout_width="match_parent"
android:layout_height="50dp">
<imageview
android:id="@+id/iv_pay_back"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centervertical="true"
android:layout_marginleft="10dp"
android:background="@drawable/back_white"/>
<textview
android:id="@+id/tv_pay_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerhorizontal="true"
android:layout_marginleft="15dp"
android:layout_margintop="15dp"
android:text="标题"
android:textcolor="#333"
android:textsize="18dp"/>
</relativelayout>
<view
android:layout_width="match_parent"
android:layout_height="0.5dp"
android:background="#e5e5e5"/>
<!-- 6位密码框布局，需要一个圆角边框的shape作为layout的背景 -->
<linearlayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginleft="20dp"
android:layout_marginright="20dp"
android:layout_margintop="20dp"
android:background="@drawable/shape_input_area"
android:orientation="horizontal">
<!-- inputtype设置隐藏密码明文
textsize设置大一点，否则“点”太小了，不美观 -->
<textview
android:id="@+id/tv_pass1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:inputtype="numberpassword"
android:paddingbottom="5dp"
android:paddingtop="5dp"
android:textsize="32sp"/>
<view
android:layout_width="1dp"
android:layout_height="match_parent"
android:background="#e5e5e5"/>
<textview
android:id="@+id/tv_pass2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:inputtype="numberpassword"
android:paddingbottom="5dp"
android:paddingtop="5dp"
android:textsize="32sp"/>
<view
android:layout_width="1dp"
android:layout_height="match_parent"
android:background="#e5e5e5"/>
<textview
android:id="@+id/tv_pass3"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:inputtype="numberpassword"
android:paddingbottom="5dp"
android:paddingtop="5dp"
android:textsize="32sp"/>
<view
android:layout_width="1dp"
android:layout_height="match_parent"
android:background="#e5e5e5"/>
<textview
android:id="@+id/tv_pass4"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:inputtype="numberpassword"
android:paddingbottom="5dp"
android:paddingtop="5dp"
android:textsize="32sp"/>
<view
android:layout_width="1dp"
android:layout_height="match_parent"
android:background="#e5e5e5"/>
<textview
android:id="@+id/tv_pass5"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:inputtype="numberpassword"
android:paddingbottom="5dp"
android:paddingtop="5dp"
android:textsize="32sp"/>
<view
android:layout_width="1dp"
android:layout_height="match_parent"
android:background="#e5e5e5"/>
<textview
android:id="@+id/tv_pass6"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:inputtype="numberpassword"
android:paddingbottom="5dp"
android:paddingtop="5dp"
android:textsize="32sp"/>
</linearlayout>
<textview
android:id="@+id/tv_pay_forgetpwd"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:layout_margin="15dp"
android:text="忘记密码？"
android:textcolor="#354eef"/>
<!-- 输入键盘 -->
<gridview
android:id="@+id/gv_keybord"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/ll_main_password"
android:layout_margintop="30dp"
android:horizontalspacing="0.5dp"
android:background="#8e8e8e"
android:numcolumns="3"
android:verticalspacing="0.5dp"/>
</linearlayout>
</relativelayout>

/**
* created by zhpan on 2016/9/25.
*/
public class payview extends relativelayout{
private mainactivity mcontext;
private string mstringpassword; //输入的密码
private textview[] mtextviewpsw; // 用数组保存6个textview
private gridview mgridview; //支付键盘布局
private arraylist<map<string, string>> valuelist;
private imageview mimageviewcancel;
private textview mtextviewforgetpsw;
private int currentindex = -1;// 用于记录当前输入密码格位置
private view mview;
private textview mtextviewtitle;
private textview mtextviewdel;
public payview(context context) {
super(context, null);
}
public payview(context context, attributeset attrs) {
super(context, attrs);
mcontext = (mainactivity) context;
mview = view.inflate(context, r.layout.pay_view, null);
valuelist = new arraylist<>();
mtextviewpsw = new textview[6];
mimageviewcancel = (imageview) mview.findviewbyid(r.id.iv_pay_back);
mtextviewpsw[0] = (textview) mview.findviewbyid(r.id.tv_pass1);
mtextviewpsw[1] = (textview) mview.findviewbyid(r.id.tv_pass2);
mtextviewpsw[2] = (textview) mview.findviewbyid(r.id.tv_pass3);
mtextviewpsw[3] = (textview) mview.findviewbyid(r.id.tv_pass4);
mtextviewpsw[4] = (textview) mview.findviewbyid(r.id.tv_pass5);
mtextviewpsw[5] = (textview) mview.findviewbyid(r.id.tv_pass6);
mgridview = (gridview) mview.findviewbyid(r.id.gv_keybord);
mtextviewtitle = (textview) mview.findviewbyid(r.id.tv_pay_title);
mtextviewforgetpsw = (textview) mview.findviewbyid(r.id.tv_pay_forgetpwd);
setview();
addview(mview); //必须要，不然不显示控件
}
// 初始化按钮上应该显示的数字
private void setview() {
for (int i = 1; i < 13; i++) {
map<string, string> map = new hashmap<>();
if (i < 10) {
map.put("name", string.valueof(i));
} else if (i == 10) {
map.put("name", "");
} else if (i == 11) {
map.put("name", string.valueof(0));
} else if (i == 12) {
map.put("name", "<-");
}
valuelist.add(map);
}
mgridview.setadapter(adapter);
}
/**
* 设置监听方法，在第6位输入完后触发
*/
public void setonfinishinput(final onpasswordinputfinish pass) {
mtextviewpsw[5].addtextchangedlistener(new textwatcher() {
@override
public void beforetextchanged(charsequence s, int start, int count, int after) {
}
@override
public void ontextchanged(charsequence s, int start, int before, int count) {
}
@override
public void aftertextchanged(editable s) {
if (s.tostring().length() == 1) {
mstringpassword = ""; //每次触发都要将mstringpassword置空再重新获取，避免由于输入删除再输入造成混乱
for (int i = 0; i < 6; i++) {
mstringpassword += mtextviewpsw[i].gettext().tostring().trim();
}
pass.inputfinish();//接口中要实现的方法，完成密码输入完成后的响应逻辑
}
}
});
}
/**
* 获取输入的密码
*/
public string getpassword() {
return mstringpassword;
}
/**
* 返回取消支付的imageview
*/
public imageview getcancel() {
return mimageviewcancel;
}
/**
* 返回忘记密码的textview
*/
public textview getforgetpsw() {
return mtextviewforgetpsw;
}
/**
* 返回标题的textview
*/
public textview gettitle() {
return mtextviewtitle;
}
// gridview的适配器
baseadapter adapter = new baseadapter() {
@override
public int getcount() {
return valuelist.size();
}
@override
public object getitem(int position) {
return valuelist.get(position);
}
@override
public long getitemid(int position) {
return position;
}
@override
public view getview(final int position, view convertview, viewgroup parent) {
viewholder holder;
if (convertview == null) {
convertview = view.inflate(mcontext, r.layout.item_pay_gride, null);
holder = new viewholder();
holder.btnkey = (textview) convertview.findviewbyid(r.id.btn_keys);
convertview.settag(holder);
} else {
holder = (viewholder) convertview.gettag();
}
holder.btnkey.settext(valuelist.get(position).get("name"));
if (position == 9) {
holder.btnkey.setbackgroundresource(r.drawable.selector_key_del);
}
if (position == 11) {
mtextviewdel = holder.btnkey;
holder.btnkey.setbackgroundresource(r.drawable.selector_key_del);
}
holder.btnkey.setonclicklistener(new onclicklistener() {
@override
public void onclick(view v) {
if (position < 11 && currentindex != 9&&position!=9) { //点击0-9按钮
if (currentindex >= -1 && currentindex < 5) { //判断输入位置
mtextviewpsw[++currentindex].settext(valuelist.get(position).get("name"));
}
} else {
if (position == 11) { //点击退格键
if (currentindex - 1 >= -1) { // 判断是否删除完毕
mtextviewpsw[currentindex--].settext("");
}
}
if(position==9){
}
}
}
});
return convertview;
}
};
static class viewholder {
public textview btnkey;
}
}

<?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">
<com.example.zhpan.mypayui.payview
android:id="@+id/pv_pop_win"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</linearlayout>

public class mainactivity extends appcompatactivity implements view.onclicklistener {
private textview mtextview;
private popupwindow mpopupwindow;
private view popview;
private payview mpayview;
@override
protected void oncreate(bundle savedinstancestate) {
super.oncreate(savedinstancestate);
setcontentview(r.layout.activity_main);
initview();
setlistener();
}
private void initview() {
mtextview = (textview) findviewbyid(r.id.tv_main_pay);
}
private void setlistener() {
mtextview.setonclicklistener(this);
}
// 显示弹窗
public void showpopupwindow() {
// 初始化弹窗
popview = view.inflate(this, r.layout.pop_window, null);
mpopupwindow = new popupwindow(popview, viewgroup.layoutparams.match_parent,
viewgroup.layoutparams.match_parent);
mpayview = (payview) popview.findviewbyid(r.id.pv_pop_win);
mpayview.gettitle().settext("选择到账银行卡");
// 设置动画
mpopupwindow.setanimationstyle(r.style.popwin_anim_style);
mpopupwindow.showasdropdown(findviewbyid(r.id.ll_main), 0, 0);
mpopupwindow.setoutsidetouchable(true);
mpayview.setonfinishinput(new onpasswordinputfinish() {
@override
public void inputfinish() {
toast.maketext(mainactivity.this, mpayview.getpassword(), toast.length_short).show();
}
});
mpayview.getcancel().setonclicklistener(this);
mpayview.getforgetpsw().setonclicklistener(this);
}
@override
public void onclick(view v) {
switch (v.getid()) {
case r.id.tv_main_pay:
showpopupwindow();
break;
case r.id.iv_pay_back:
mpopupwindow.dismiss();
break;
case r.id.tv_pay_forgetpwd:
toast.maketext(mainactivity.this,"忘记密码",toast.length_short).show();
break;
}
}
}