Signin.java

package net.oschina.app.ui;

import net.oschina.app.AppContext;
import net.oschina.app.AppException;
import net.oschina.app.AppManager;
import net.oschina.app.R;
import net.oschina.app.bean.Barcode;
import net.oschina.app.bean.JsonResult;
import net.oschina.app.common.UIHelper;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.Toast;

/**
 * 线下活动签到
 * 
 * @author 火蚁（http://my.oschina.net/LittleDY）
 * @version 1.0
 * @created 2014-03-18
 */
public class Signin extends BaseActivity {
    private AppContext ac;
    private TextView mTitle;// 活动标题

    private Button mPublish;
    private ImageButton mClose;
    private ProgressDialog mProgress;
    private Barcode barcode;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.signin);
        this.initView();
        initData();
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        AppManager.getAppManager().finishActivity(this);
    }

    private void initView() {
        ac = (AppContext) getApplication();
        mTitle = (TextView) findViewById(R.id.signin_title);
        mPublish = (Button) findViewById(R.id.sigin_publish);
        mClose = (ImageButton) findViewById(R.id.signin_close_button);
        mClose.setOnClickListener(UIHelper.finish(this));
        mPublish.setOnClickListener(publishListener);
    }

    private void initData() {
        Intent data = this.getIntent();
        barcode = (Barcode) data.getSerializableExtra("barcode");
        mTitle.setText(barcode.getTitle());
    }

    private OnClickListener publishListener = new OnClickListener() {
        public void onClick(View v) {
            signIn(barcode);
        }
    };

    /**
     * 签到
     * 
     * @param barcode
     */
    private void signIn(final Barcode barcode) {
        // 如果网络没有连接则返回
        if (!ac.isNetworkConnected()) {
            UIHelper.ToastMessage(Signin.this, "当前网络不可用，请检查网络设置", Toast.LENGTH_LONG);
            finish();
            return;
        }
        mProgress = ProgressDialog.show(Signin.this, null, "正在签到，请稍候...", true, true);
        final Handler handler = new Handler() {
            public void handleMessage(Message msg) {
                if (mProgress != null)
                    mProgress.dismiss();
                if (msg.what == 0) {
                    try {
                        JsonResult res = JsonResult.parse(msg.obj.toString());
                        if (res.isOk()) {
                            UIHelper.ToastMessage(Signin.this, res.getMessage(), Toast.LENGTH_LONG);
                        } else {
                            UIHelper.ToastMessage(Signin.this, res.getErrorMes(), Toast.LENGTH_LONG);
                        }
                    } catch (AppException e) {
                        e.printStackTrace();
                    }
                } else {
                    ((AppException) msg.obj).makeToast(Signin.this);
                }
            }
        };
        new Thread() {
            public void run() {
                Message msg = new Message();
                String res = "";
                try {
                    res = ac.signIn(barcode);
                    if (mProgress != null && mProgress.isShowing()) {
                        mProgress.dismiss();
                    }
                    msg.what = 0;
                    msg.obj = res;
                } catch (AppException e) {
                    e.printStackTrace();
                    msg.what = -1;
                    msg.obj = e;
                }
                handler.sendMessage(msg);
            }
        }.start();
    }
}