摘要:效果图源码地址最近开发项目需要自定义收银键盘,网上查了查都感觉不是太好,于是自己写了一个,自定义的键盘主要是根据结合来写的如下然后自己写了一个,设置了键盘的文字和类型。
效果图:
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源码地址(github)
最近开发项目需要自定义收银键盘,网上查了查都感觉不是太好,于是自己写了一个,自定义的键盘主要是根据GridView+EditText结合来写的.
1.GridView如下:
2.然后自己写了一个PayKeyAdapter,设置了键盘的文字和类型。
package com.example.qzs.keyboard_cash; import android.content.Context; import android.graphics.Color; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.TextView; public class PayKeyAdapter extends BaseAdapter { private Context mContext; private Context context; public PayKeyAdapter(Context context) { this.context=context; } private String[] texts = { //九宫格图片下方文字的设置 "1", "2", "3", "清空", "4", "5", "6", "←", "7", "8", "9", "=", ".", "0", "+", "收款", }; private String[] types = { //存放在text的tag中 "num", "num", "num", "cancel", "num", "num", "num", "back", "num", "num", "num", "equal", "point", "num", "plus", "pay", }; @Override public int getCount() { return texts.length; } @Override public Object getItem(int position) { return position; } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View view, ViewGroup viewgroup) { ImgTextWrapper wrapper; if(view==null) { wrapper = new ImgTextWrapper(); LayoutInflater inflater = LayoutInflater.from(context); view = inflater.inflate(R.layout.grid_menu_item_pay, null); view.setTag(wrapper); view.setPadding(3, 3, 3, 3); //每格的间距 } else { wrapper = (ImgTextWrapper)view.getTag(); } wrapper.textView = (TextView)view.findViewById(R.id.GridTextView); wrapper.textView.setText(texts[position]); wrapper.textView.setTag(types[position]); if(types[position].equals("back") || types[position].equals("cancel") || types[position].equals("equal")){ wrapper.textView.setBackgroundResource(R.drawable.btn_cell_delete); }else if(types[position].equals("pay")){ wrapper.textView.setBackgroundResource(R.drawable.btn_cell_pay); wrapper.textView.setTextColor(Color.WHITE); } // wrapper.textView = (TextView)view.findViewById(R.id.GridItemText); // wrapper.textView.setText(texts[position]); // wrapper.textView.setTag(payTypes[position]); return view; } class ImgTextWrapper { ImageView imageView; TextView textView; } }
3.核心的语法在GridView的setOnItemClickListener事件.
gridview.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView> adapterView, View view, int i, long l) { String keyType = view.findViewById(R.id.GridTextView).getTag().toString(); String textValue = ((TextView)view.findViewById(R.id.GridTextView)).getText().toString(); String editText = editMemberAmount.getText().toString(); if(keyType.equals("num")){ //数字键 try{ String orgValue = numList.get(numIndex); if(editText.equals("0")){ editMemberAmount.setText(textValue); }else{ //小数点最多只能后两位 if(orgValue.equals("0.00")){ orgValue=textValue; numList.set(numIndex, textValue); editMemberAmount.setText(textValue); return; } if(orgValue.lastIndexOf(".")!=-1 && orgValue.lastIndexOf(".")=18){ Toast.makeText(getApplicationContext(),"一次输入算式无法超过18个字符",Toast.LENGTH_SHORT).show(); return; } int numLen = orgValue.length(); if(orgValue.lastIndexOf(".")!=-1){ numLen = orgValue.lastIndexOf(".")+1; } if(numLen==7){ Toast.makeText(getApplicationContext(),"收款金额不能超过7位数",Toast.LENGTH_SHORT).show(); }else{ numList.set(numIndex, orgValue+textValue); editMemberAmount.setText(editText+textValue); } } } }catch(Exception e){ numIndex=0; numList=new ArrayList (); numList.add(textValue); editMemberAmount.setText(textValue); } } if(keyType.equals("back")){ //退格 try{ if(editText.lastIndexOf("+") == editText.length()-1){ //最后为加则减少一位 numList.set(numIndex,""); numIndex--; editMemberAmount.setText(editText.substring(0,editText.length()-1)); }else{ String orgValue = numList.get(numIndex); if(!orgValue.equals("")){ numList.set(numIndex, orgValue.substring(0,orgValue.length()-1)); } if(editText.equals("0")||editText.length()==1){ editMemberAmount.setText("0.00"); numList.set(numIndex,"0.00"); }else{ editMemberAmount.setText(editText.substring(0,editText.length()-1)); } } }catch(Exception e){ numIndex=0; numList=new ArrayList (); numList.add("0"); editMemberAmount.setText(""); } } if(keyType.equals("point")){ //小数点 try{ String orgValue = numList.get(numIndex); if(orgValue.lastIndexOf(".")!=-1){ Toast.makeText(getApplicationContext(),"已存在小数点",Toast.LENGTH_SHORT).show(); }else{ if(editText.lastIndexOf("+") == editText.length()-1){ //最后为加则补0 numList.set(numIndex, orgValue+"0"+textValue); editMemberAmount.setText(editText+"0"+textValue); }else{ numList.set(numIndex, orgValue+textValue); editMemberAmount.setText(editText+textValue); } } }catch(Exception e){ numIndex=0; numList=new ArrayList (); numList.add("0."); editMemberAmount.setText("0."); } } if(keyType.equals("plus")){ //加 try{ if(editText.lastIndexOf("+") == editText.length()-1){ //最后为加则不处理 }else{ numIndex++; numList.add(""); editMemberAmount.setText(editText+textValue); } }catch(Exception e){ numIndex=0; numList=new ArrayList (); numList.add("0"); editMemberAmount.setText(""); } } if(keyType.equals("cancel")){ //清空 //确认是否清空 AlertDialog.Builder clearBuilder = new AlertDialog.Builder(MainActivity.this);// 添加按钮的单击事件 clearBuilder.setMessage("是否确认要清空当前收款数据?") . // 设置确定按钮 setPositiveButton("确定", new DialogInterface.OnClickListener() { // 单击事件 public void onClick( DialogInterface dialog, int which) { // 设置TextView文本 clearInputData(); } }) . // 设置取消按钮 setNegativeButton("取消", new DialogInterface.OnClickListener() { public void onClick( DialogInterface dialog, int which) { } }); // 创建对话框 AlertDialog ad = clearBuilder.create(); // 显示对话框 ad.show(); } if(keyType.equals("equal")||keyType.equals("pay")){ //等于 try{ double sum = 0.0; for(String value :numList){ if(!value.equals("")){ sum+= Double.parseDouble(value)+0.00d; } } String sumStr=new DecimalFormat("##.##").format(sum); if(!sumStr.contains(".")){ sumStr+=".00"; } if(sumStr.substring(sumStr.lastIndexOf(".")+1).length()<2){ sumStr+="0"; } numIndex=0; numList=new ArrayList (); numList.add(sumStr); editMemberAmount.setText(sumStr); }catch(Exception e){ numIndex=0; numList=new ArrayList (); numList.add("0"); editMemberAmount.setText(""); } } if(keyType.equals("pay")){ //收款 if (editMemberAmount.getText().toString().length() < 1||editMemberAmount.getText().toString().equals("0.00") || editMemberAmount.getText().toString().equals("0")) { Toast.makeText(getApplicationContext(),"请输入金额",Toast.LENGTH_SHORT).show(); return; }else { Toast.makeText(getApplicationContext(),"收款成功",Toast.LENGTH_SHORT).show(); } } } });
4.具体的完整项目请访问我的github,地址在上方已贴出.
我的公众号如下:
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摘要:首先先祝大家国庆节快乐今天距离为我运营公众号已经一个月了,今天把文章整合一下,希望对大家有帮助,也谢谢朋友的支持,我会继续坚持原创,写更好的文章给大家一视频获取学习资源分享合集二功能篇实现金额的语音播报功能基于模式风格的封装之路炫酷动画跳 showImg(https://segmentfault.com/img/remote/1460000011437678?w=900&h=500);...
摘要:首先先祝大家国庆节快乐今天距离为我运营公众号已经一个月了,今天把文章整合一下,希望对大家有帮助,也谢谢朋友的支持,我会继续坚持原创,写更好的文章给大家一视频获取学习资源分享合集二功能篇实现金额的语音播报功能基于模式风格的封装之路炫酷动画跳 showImg(https://segmentfault.com/img/remote/1460000011437678?w=900&h=500);...
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