android项目文件简介 及JSON文件解析

 

1  src

存放源文件的地方

2.  gen

自动生成的文件

3  android 2.1 的库文件

4assets 存放外部文件的地方如json文件

4   res

里面有layout ,布局，控件可以画上去的那种

values定义标题名字的地方可以

AndroidManifest.xml 这个文件也很重要，在里面设置新的active的地方。

 

package com.android.ling;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.UnsupportedEncodingException;import java.util.Iterator;import java.util.LinkedList;import java.util.Map;import org.json.JSONArray;import org.json.JSONException;import org.json.JSONObject;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.util.Log;import android.view.View;import android.view.View.OnClickListener;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.ArrayAdapter;import android.widget.Button;import android.widget.ListAdapter;import android.widget.ListView;import android.widget.TextView;public class json extends Activity {private JSONObject dataJson=null;private JSONObject nbaJson=null;private String TAG="com.android.ling"; private ListView lv=null;private String str=new String();private String temp;private String [] result=null;private InputStream fil = null;private BufferedReader br=null;@Overridepublic void onCreate(Bundle savedInstanceState) {   /* try {Thread.sleep(15000,0);} catch (InterruptedException e1) {// TODO Auto-generated catch blocke1.printStackTrace();}*/    super.onCreate(savedInstanceState);    setContentView(R.layout.index);            try{    fil = getAssets().open("list.json");    }catch(IOException e){    e.printStackTrace();    Log.d(TAG,"=========="+fil);      }                try{     br=new BufferedReader(new InputStreamReader(fil,"UTF-8"));    }catch (UnsupportedEncodingException e)  {     e.printStackTrace();     Log.d(TAG,"=========="+br);      }            try{    while(br!=null&&null!=(temp=br.readLine()))    {    str+=temp;     if(null!=str)    Log.d(TAG,"str is =========="+str);     }        }catch(IOException e){    e.printStackTrace();    Log.d(TAG,"=========="+str);      }            try{         dataJson = new JSONObject(str);         if(null!=dataJson)         Log.d(TAG,"datajson is=========="+dataJson);                          }catch (JSONException e){      e.printStackTrace();     Log.d(TAG," datajson is =========="+dataJson);     }            JSONArray js= dataJson.names();      result=new String[js.length()];          for(int i =0;i<js.length();i++)          {                    result[i]=js.optString(i);//解析JSON文件，          }                      lv=(ListView)findViewById(R.id.listView);        ListAdapter adapter=new ArrayAdapter<String>(        this,android.R.layout.simple_list_item_1 ,        result);        lv.setAdapter(adapter);                lv.setOnItemClickListener(new OnItemClickListener()        {                    @Override    public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,    long arg3) {                      String map = arg0.getItemAtPosition(arg2).toString();                          Intent i = new Intent();                                i.setClass(json.this, json1.class);                                  Bundle bundle=new Bundle();                 bundle.putString("KEY_TEXT", map);                 bundle.putString("KEY_Object", str); //向另一个active传值                                   i.putExtras(bundle);                                  startActivity(i);    }            }          );              }}

 

package com.android.ling;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.UnsupportedEncodingException;import java.util.Iterator;import java.util.LinkedList;import org.json.JSONArray;import org.json.JSONException;import org.json.JSONObject;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.util.Log;import android.view.View;import android.widget.AdapterView;import android.widget.ArrayAdapter;import android.widget.ListAdapter;import android.widget.ListView;import android.widget.TextView;import android.widget.AdapterView.OnItemClickListener;public class json1 extends Activity {private ListView lv=null;private String TAG="com.android.ling"; private JSONObject dataJson=null;private JSONObject nbaJson=null;    @Override        public void onCreate(Bundle savedInstanceState)     {            super.onCreate(savedInstanceState);        setContentView(R.layout.main);                try{                lv=(ListView)findViewById(R.id.listView1);        Bundle bundle = this.getIntent().getExtras();         String text = bundle.getString("KEY_TEXT");         String str = bundle.getString("KEY_Object");                 dataJson = new JSONObject(str);        if(null!=dataJson)        Log.d(TAG,"datajson is =========="+dataJson);                    nbaJson = dataJson.getJSONObject(text);                      JSONArray js=nbaJson.names();        String[] result=new String[js.length()];              for(int i=0;i<js.length();i++)        {        result[i]=js.optString(i);        String value=nbaJson.optString(result[i]);        result[i]=result[i]+"  is  "+ value;        }          ListAdapter adapter=new ArrayAdapter<String>(        this,android.R.layout.simple_list_item_1 ,        result);        lv.setAdapter(adapter);     }catch (JSONException e){       e.printStackTrace();     Log.d(TAG," nba is=========="+nbaJson);     }

使用了listview的控件

使用了intent 页面转换

 

不知道做游戏的是怎么做的，现在只是知道了这么点皮毛而已。