Android自定义View仿支付宝输入六位密码功能

<?xml version="1.0" encoding="utf-8"?><RelativeLayoutxmlns: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"><LinearLayoutandroid: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"><RelativeLayoutandroid:layout_width="match_parent"android:layout_height="50dp"><ImageViewandroid: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"/><TextViewandroid: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><Viewandroid: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 --><LinearLayoutandroid: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 --><TextViewandroid: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"/><Viewandroid:layout_width="1dp"android:layout_height="match_parent"android:background="#e5e5e5"/><TextViewandroid: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"/><Viewandroid:layout_width="1dp"android:layout_height="match_parent"android:background="#e5e5e5"/><TextViewandroid: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"/><Viewandroid:layout_width="1dp"android:layout_height="match_parent"android:background="#e5e5e5"/><TextViewandroid: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"/><Viewandroid:layout_width="1dp"android:layout_height="match_parent"android:background="#e5e5e5"/><TextViewandroid: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"/><Viewandroid:layout_width="1dp"android:layout_height="match_parent"android:background="#e5e5e5"/><TextViewandroid: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><TextViewandroid: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 --><GridViewandroid: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TextViewprivate 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() {@Overridepublic void beforeTextChanged(CharSequence s, int start, int count, int after) {}@Overridepublic void onTextChanged(CharSequence s, int start, int before, int count) {}@Overridepublic 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() {@Overridepublic int getCount() {return valueList.size();}@Overridepublic Object getItem(int position) {return valueList.get(position);}@Overridepublic long getItemId(int position) {return position;}@Overridepublic 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() {@Overridepublic 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.PayViewandroid: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;@Overrideprotected 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() {@Overridepublic void inputFinish() {Toast.makeText(MainActivity.this, mPayView.getPassword(), Toast.LENGTH_SHORT).show();}});mPayView.getCancel().setOnClickListener(this);mPayView.getForgetPsw().setOnClickListener(this);}@Overridepublic 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;}}}