python for android : 贷款等额本息每月还款额计算

dkjs1.py

# -*- coding: utf-8 -*-
import android
import os,sys
reload(sys)
sys.setdefaultencoding('utf-8')
droid = android.Android()

# 等额本息 每月还款额计算公式如下：
# =(贷款本金*月利率*(1+月利率)^还款月数)/((1+月利率)^还款月数－1)
def compute1():
    rate= droid.fullQueryDetail("editText1").result["text"]
    cap = droid.fullQueryDetail("editText2").result["text"]
    months= droid.fullQueryDetail("editText3").result["text"]
    print rate,cap,months
    try:
        c = float(cap)
        r = float(rate)
        m = float(months)
        if m >360.0: return
        mhk = (c*(r/1200)*(1+r/1200)**m)/((1+r/1200)**m-1)
        total = mhk*m
        print 'total: %.2f' % (total)
        out = "每月还款额: %.2f元\n还款总利息= %.2f元\n" % (mhk,total-c)
        droid.fullSetProperty("Text2","text",out)
    except:
        droid.makeToast('Error: 输入数字有错误')
        return

def eventloop():
  while True:
    event=droid.eventWait().result
    if event["name"]=="click":
      id=event["data"]["id"]
      if id=="button1":
        compute1()
      if id=="Exit":
        return
    elif event["name"]=="screen":
      if event["data"]=="destroy":
        return

layout = """

  
        
        
        
            
        
  
  
        
            
        
        
            
        
  
    
    
    
    

"""

droid.fullShow(layout)
eventloop()
droid.fullDismiss()

参考 https://code.google.com/p/android-scripting/wiki/FullScreenUI