1.设置整个小程序通用标题,在app.json里设置:
"window": {
"navigationBarTitleText": "默认标题"
}
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2.单独设置页面标题,在对应页面json文件里设置(子页面设置会覆盖通用设置):
{
"navigationBarTitleText": "首页"
}
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3.动态设置,比如说:我们从接口拿到商品名称后,把商品名称设置到标题上
wx.request({
url: "请求接口url",
method: "POST",
data: {},
success: function (res) {
if (res.data.code == 200) {
// 修改navigationBarTitleText
wx.setNavigationBarTitle({
title: goods_name
})
}
}
})
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tips:动态设置 >页面独立设置 >通用设置
效果图:
当然,另外我们可以通过点击事件来动态设置标题:
test: function () {
wx.setNavigationBarTitle({
title: "我是点击后的标题"
})
}
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效果图:
二、wx.setNavigationBarColor
设置页面导航条颜色
wx.setNavigationBarColor({
frontColor: '#ffffff',
backgroundColor: '#ff0000',
animation: {
duration: 400,
timingFunc: 'easeIn'
}
})
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frontColor:前景颜色值,包括按钮、标题、状态栏的颜色,仅支持 #ffffff 和 #000000
backgroundColor:背景颜色值,有效值为十六进制颜色
animation:动画效果
①animation的结构包括:duration,timingFunc;
②timingFunc:linear(动画从头到尾的速度是相同的),easeIn(动画以低速开始),easeOut(动画以低速结束),easeInOut(动画以低速开始和结束)
效果图:
三、wx.showNavigationBarLoading和wx.hideNavigationBarLoading
wx.showNavigationBarLoading:在当前页面显示导航条加载动画
wx.hideNavigationBarLoading:在当前页面隐藏导航条加载动画
index.wxml
<button bindtap="showLoading">显示加载动画</button>
<button bindtap="hideLoading">隐藏加载动画</button>
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index.js
// 显示加载动画
showLoading: function () {
wx.showNavigationBarLoading()
},
// 隐藏加载动画
hideLoading: function () {
wx.hideNavigationBarLoading()
}
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效果图:
四、wx.hideHomeButton
隐藏返回首页按钮。微信7.0.7版本起,当用户打开的小程序最底层页面是非首页时,默认展示“返回首页”按钮,开发者可在页面 onShow 中调用 hideHomeButton 进行隐藏。
分类: 电脑/网络 >>程序设计 >>其他编程语言问题描述:
我们修的汇编语言是JAVA,怎奈自己学术不精.现在此象高手请教.小程序是期末做课程设计用的.题目有日历记事本,学籍管理系统,计算器,画图程序.其他的也可以.现需要两个程序,谢谢大家!
解析:
import java.io.*
import java.util.Calendar
import java.awt.*
import java.awt.event.*
import javax.swing.*
public class NoteBook extends JFrame implements ActionListener,ItemListener,WindowListener,MouseListener{
Container c = this.getContentPane()
JMenuBar jmb = new JMenuBar()
JColorChooser jcc = new JColorChooser()
JMenu jm1 = new JMenu("文件(F)")
JMenu jm2 = new JMenu("编辑(E)")
JMenu jm3 = new JMenu("格式(O)")
JMenu jm4 = new JMenu("查看(V)")
JMenu jm5 = new JMenu("帮助(H)")
JMenuItem jmi1 = new JMenuItem("新建(N)")
JMenuItem jmi2 = new JMenuItem("打开(O)")
JMenuItem jmi3 = new JMenuItem("保存(S)")
JMenuItem jmi4 = new JMenuItem("退出(X)")
JMenuItem jmi5 = new JMenuItem("撤消(U)")
JMenuItem jmi6 = new JMenuItem("复制(C)")
JMenuItem jmi7 = new JMenuItem("粘贴(P)")
JMenuItem jmi8 = new JMenuItem("剪切(T)")
JMenuItem jmi12 = new JMenuItem("日期和时间")
JMenuItem jmi9 = new JMenuItem("字体(E)")
JCheckBoxMenuItem jcbmi = new JCheckBoxMenuItem("自动换行(W)")
JMenuItem jmi10 = new JMenuItem("删除(S)")
JMenuItem jmi11 = new JMenuItem("背景颜色(H)")
JTextArea jta = new JTextArea(15,15)
JScrollPane jsp = new JScrollPane(jta)
PupolMenu pm = new Pupolmenu()
NoteBook(){
this.addWindowListener(this)
c.setLayout(new BorderLayout())
c.add(jmb,BorderLayout.NORTH)
this.setTitle("新建 文本文档")
jmb.add(jm1)
jm1.setMnemonic('f')
jm1.addActionListener(this)
jmb.add(jm2)
jm2.setMnemonic('e')
jmb.add(jm3)
jm3.setMnemonic('o')
jmb.add(jm4)
jm4.setMnemonic('v')
jmb.add(jm5)
jm5.setMnemonic('h')
jm1.add(jmi1)
jmi1.addActionListener(this)
jmi1.setAccelerator(KeyStroke.getKeyStroke('N',Event.CTRL_MASK,false))
jm1.addSeparator()
jm1.add(jmi2)
jmi2.setAccelerator(KeyStroke.getKeyStroke('O',Event.CTRL_MASK,false))
jmi2.addActionListener(this)
jm1.addSeparator()
jm1.add(jmi3)
jmi3.setAccelerator(KeyStroke.getKeyStroke('S',Event.CTRL_MASK,false))
jmi3.addActionListener(this)
jm1.addSeparator()
jm1.add(jmi4)
jmi1.setMnemonic('n')
jmi2.setMnemonic('o')
jmi3.setMnemonic('s')
jmi4.setMnemonic('x')
jmi4.addActionListener(this)
jm2.add(jmi5)
jm2.addSeparator()
jm2.add(jmi6)
jm2.addSeparator()
jm2.add(jmi7)
jm2.addSeparator()
jm2.add(jmi8)
jm2.add(jmi12)
jmi12.addActionListener(this)
jm3.add(jcbmi)
jcbmi.addItemListener(this)
jm3.addSeparator()
jm3.add(jmi9)
jm4.add(jmi10)
jmi10.addActionListener(this)
jm5.add(jmi11)
jmi11.addActionListener(this)
c.add(jsp)
this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE)
this.setSize(500,500)
this.setVisible(true)
}
public void actionPerformed(ActionEvent e){
if(e.getSource()==jmi1){
jta.setText("")
this.setTitle("无标题 - 记事本")
}
if(e.getSource()==jmi2){
File f1
JFileChooser jfc1 = new JFileChooser()
int num1 = jfc1.showOpenDialog(this)
if(num1==JFileChooser.APPROVE_OPTION){
try{
f1 = jfc1.getSelectedFile()
this.setTitle(f1.getName())
FileReader fr = new FileReader(f1)
BufferedReader br = new BufferedReader(fr)
String str
while((str = br.readLine())!=null){
jta.setText(str)
}
fr.close()
br.close()
}catch(FileNotFoundException e1){
e1.printStackTrace()
}catch(IOException e2){
e2.printStackTrace()
}
}
}
if(e.getSource()==jmi3){
File f2 = null
JFileChooser jfc2 = new JFileChooser()
int num2 = jfc2.showSaveDialog(this)
if(num2==JFileChooser.APPROVE_OPTION){
f2=jfc2.getSelectedFile()
this.setTitle(f2.getName())
try{
FileWriter fw = new FileWriter(f2)
BufferedWriter bw = new BufferedWriter(fw)
bw.write(jta.getText())
bw.close()
fw.close()
}catch(IOException e2){
e2.printStackTrace()
}
}
}
if(e.getSource()==jmi4){
int a = JOptionPane.showConfirmDialog(this,"文件已被改变,是否要保存?","提示",JOptionPane.YES_NO_CANCEL_OPTION)
if(a==1){
this.dispose()
}else if(a==0){
File f2 = null
JFileChooser jfc2 = new JFileChooser()
int num2 = jfc2.showSaveDialog(this)
if(num2==JFileChooser.APPROVE_OPTION){
f2=jfc2.getSelectedFile()
this.setTitle(f2.getName())
try{
FileWriter fw = new FileWriter(f2)
BufferedWriter bw = new BufferedWriter(fw)
bw.write(jta.getText())
bw.close()
fw.close()
}catch(IOException e2){
e2.printStackTrace()
}
this.dispose()
}
}
}
if(e.getSource()==jmi12){
Calendar c1 =Calendar.getInstance()
int y = c1.get(Calendar.YEAR)
int m = c1.get(Calendar.MONTH)
int d = c1.get(Calendar.DATE)
int h = c1.get(Calendar.HOUR)
int m1 = c1.get(Calendar.MINUTE)
int m2 = m+1
jta.setText(y+"年"+m2+"月"+d+"日"+h+":"+m1)
}
if(e.getSource()==jmi11){
Color ccc = JColorChooser.showDialog(this,"color",Color.BLACK)
jta.setSelectedTextColor(ccc)
jta.setBackground(ccc)
}
if(e.getSource()==jmi10){
jta.replaceRange("",jta.getSelectionStart(),jta.getSelectionEnd())
}
}
public void itemStateChanged(ItemEvent e2){
if(e2.getItemSelectable()==jcbmi){
jta.setLineWrap(true)
}else
jta.setLineWrap(false)
}
public static void main(String[] args){
new NoteBook()
}
public void windowOpened(WindowEvent arg0) {
}
public void windowClosing(WindowEvent arg0) {
int a = JOptionPane.showConfirmDialog(this,"文件已被改变,是否要保存?","提示",JOptionPane.YES_NO_CANCEL_OPTION)
if(a==1){
this.dispose()
}else if(a==0){
File f2 = null
JFileChooser jfc2 = new JFileChooser()
int num2 = jfc2.showSaveDialog(this)
if(num2==JFileChooser.APPROVE_OPTION){
f2=jfc2.getSelectedFile()
this.setTitle(f2.getName())
try{
FileWriter fw = new FileWriter(f2)
BufferedWriter bw = new BufferedWriter(fw)
bw.write(jta.getText())
bw.close()
fw.close()
}catch(IOException e2){
e2.printStackTrace()
}
}
if(a==2){
????/????????????????????????????????????????????????????????????????
}
}
}
public void windowClosed(WindowEvent arg0) {
}
public void windowIconified(WindowEvent arg0) {
TODO Auto-generated method stub
}
public void windowDeiconified(WindowEvent arg0) {
TODO Auto-generated method stub
}
public void windowActivated(WindowEvent arg0) {
TODO Auto-generated method stub
}
public void windowDeactivated(WindowEvent arg0) {
TODO Auto-generated method stub
}
public void mouseClicked(MouseEvent arg0) {
TODO Auto-generated method stub
}
public void mousePressed(MouseEvent arg0) {
TODO Auto-generated method stub
}
public void mouseReleased(MouseEvent arg0) {
TODO Auto-generated method stub
}
public void mouseEntered(MouseEvent arg0) {
TODO Auto-generated method stub
}
public void mouseExited(MouseEvent arg0) {
TODO Auto-generated method stub
}
}
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