Android 使用Application类保存应用的全局数据

    <application
        android:name="MeterApplication"
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
   </application>

public class MeterApplication extends Application {

    private List<ReadyTask> DownloadList;
    private static MeterApplication instance;

    
    private HashMap<String, List<ReadyTask>> DownLoadResult;   
    private List<String> UnitNumList;    
    private String CurOPNUM;                                     
    
    private boolean BlueConStatus;
    
    private int CurStauts;   // 当前运行状态
    @Override
    public void onCreate() {
        // TODO Auto-generated method stub
        instance = this;
        DownloadList = new ArrayList<ReadyTask>();
        super.onCreate();
    }


    public boolean isBlueConStatus() {
        return BlueConStatus;
    }


    public void setBlueConStatus(boolean blueConStatus) {
        BlueConStatus = blueConStatus;
    }


    public List<String> getUnitNumList() {
        return UnitNumList;
    }

    public void setUnitNumList(List<String> unitNumList) {
        UnitNumList = unitNumList;
    }

    public HashMap<String, List<ReadyTask>> getDownLoadResult() {
        return DownLoadResult;
    }

    public void setDownLoadResult(HashMap<String, List<ReadyTask>> downLoadResult) {
        DownLoadResult = downLoadResult;
    }

    public static MeterApplication getInstance() {
        return instance;
    }

    public List<ReadyTask> getDownloadList() {   //下载List的值
        return DownloadList;
    }

    public void setDownloadList(List<ReadyTask> downloadList) {
        DownloadList = downloadList;
    }

    public int getCurStauts() {
        return CurStauts;
    }

    public void setCurStauts(int curStauts) {
        CurStauts = curStauts;
    }

    public String getCurOPNUM() {
        return CurOPNUM;
    }

    public void setCurOPNUM(String curOPNUM) {
        CurOPNUM = curOPNUM;
    } 
    
    
}