天气预报计划

时间:2012-12-07 11:11:58

标签: android android-widget weather

我正在开展“天气预报”项目,信息来自this static URL。我必须获得符合其条件的城市列表。例如,当我输入东京时,它应该显示:

Tokyo, Japan#14#Cloudy ##

我还使用城市列表创建了ArrayList。我已经完成了布局xml文件。

输出格式为text plain:

  • 每个输出行都以换行符(\n)
  • 结束
  • 流程始终由包含两个符号(##)
  • 的行终止

它给了我错误:

Invalid layout of java.lang.String at value

A fatal error has been detected by the Java Runtime Environment:

Internal Error (javaClasses.cpp:129), pid=6464, tid=7052
fatal error: Invalid layout of preloaded class

这是我的代码:

import android.app.Activity;
import android.os.Bundle;

public class Meteo extends Activity{

        @Override
    protected void onCreate(Bundle savedInstanceState) { {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.meteo);

        String url = `http://myexample.info/?cities`;
        // Weather information
        String weather = "Tokyo, Japan#14#Cloudy ##";
        // Get the city name
        String city = url.substring(url.indexOf("?") + 1).trim();
        System.out.println(city);
        // Check the weather of the city: 14#Cloudy
        // Remove city name
        // Remove last #
        if (weather.toLowerCase().contains(city.toLowerCase())) {
            // Get condition: 
            String condition = weather.substring(weather.indexOf("#") + 1,
                    weather.length() - 2);
            System.out.println(condition);
            // Split with # sign and you have a list of conditions
            String[] information = condition.split("#");
            for (int i = 0; i < information.length; i++) {
                System.out.println(information[i]);
            }
        }

            @Override

            protected void onPause() {
                // TODO Auto-generated method stub
                super.onPause();
            }

如何解决无效的布局错误?

1 个答案:

答案 0 :(得分:1)

更改 字符串“` url = http://myexample.info/?cities`

String url =“http://myexample.info/?cities”;

在“url”前面的`弄乱了你的字符串并在http:评论之后做了所有事情,因为//.