SplashActivity.java

package com.wisedu.scc.love.activity;

import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.widget.ImageView;

import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.assist.FailReason;
import com.nostra13.universalimageloader.core.listener.ImageLoadingListener;
import com.wisedu.scc.love.R;
import com.wisedu.scc.love.activity.base.BaseActivity;
import com.wisedu.scc.love.application.LoveApplication;
import com.wisedu.scc.love.config.Define;
import com.wisedu.scc.love.sqlite.ModelFactory;
import com.wisedu.scc.love.sqlite.SqlBuilder;
import com.wisedu.scc.love.sqlite.SqliteHelper;
import com.wisedu.scc.love.utils.BitmapUtil;
import com.wisedu.scc.love.utils.CommonUtil;
import com.wisedu.scc.love.utils.TerminalHelper;

import org.androidannotations.annotations.AfterViews;
import org.androidannotations.annotations.Bean;
import org.androidannotations.annotations.EActivity;
import org.androidannotations.annotations.ViewById;

import java.io.File;

/**
 * Created by JZ on 2015/3/5.
 */
@EActivity(R.layout.activity_splash)
public class SplashActivity extends BaseActivity{

    @Bean
    public TerminalHelper terminalHelper;

    /*定义消息常量*/
    private static final int LOAD_SPLASH_IMAGE = 0;
    private static final int DO_INIT_TASK = 1;
    private static final int TO_LOGIN_ACTIVITY = 2;
    private static final int TO_MAIN_ACTIVITY = 3;
    private String splashUri = "drawable://" + R.drawable.splash;

    @Bean
    public Define define;

    @Bean
    public SqliteHelper sqliteHelper;

    @ViewById(R.id.splashImage)
    public ImageView splashImage;

    // 处理器
    private Handler splashHandler = new Handler(){
        @Override
        public void handleMessage(Message msg) {
            switch (msg.what) {
                case LOAD_SPLASH_IMAGE:
                    loadSplash();
                    break;
                case DO_INIT_TASK:
                    initTask();
                    break;
                case TO_LOGIN_ACTIVITY:
                    toLoginActivity();
                    break;
                case TO_MAIN_ACTIVITY:
                    toMainActivity();
                    break;
            }
        }
    };

    @AfterViews
    public void doAfterViews(){
        splashHandler.sendEmptyMessage(LOAD_SPLASH_IMAGE);
    }

    /*加载图片*/
    public void loadSplash(){
       ImageLoader.getInstance().displayImage(
               splashUri, // 加载图片地址
               splashImage, // 目标图片控件
               Define.NORMAL_OPTIONS,
               new ImageLoadingListener() {
                   @Override
                   public void onLoadingStarted(String s, View view) {}

                   @Override
                   public void onLoadingFailed(String s, View view, FailReason failReason) {
                       CommonUtil.shortToast(SplashActivity.this, "网络不通，请检查网络设置");
                   }

                   @Override
                   public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
                       if (loadedImage != null) {
                           splashImage.setImageBitmap(loadedImage);
                           splashImage.setScaleType(ImageView.ScaleType.FIT_XY);
                           splashHandler.sendEmptyMessage(DO_INIT_TASK);
                       }
                   }

                   @Override
                   public void onLoadingCancelled(String imageUri, View view) {}
               });
    }

    /*初始化资源*/
    public void initTask(){
        new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    // 在此初始化资源
                    dealInit();
                    Thread.sleep(2000);
                    splashHandler.sendEmptyMessage(TO_LOGIN_ACTIVITY);
                } catch (Exception e){
                    e.printStackTrace();
                }
            }
        }).start();
    }

    /*跳转至登录页*/
    public void toLoginActivity(){
        if(checkLogin()){
            splashHandler.sendEmptyMessage(TO_MAIN_ACTIVITY);
        } else {
            startActivity(new Intent(this, LoginActivity_.class));
            SplashActivity.this.finish();
        }
    }

    /*跳转至主页*/
    public void toMainActivity(){
        startActivity(new Intent(this, MainActivity_.class));
        SplashActivity.this.finish();
    }

    /**
     * 检查是否已登录
     * @return
     */
    private boolean checkLogin(){
        return sqliteHelper.check(ModelFactory.getLoginTableName()
        , SqlBuilder.geneWhere("=", "status"), new String[]{"on"});
    }

    /**
     * TODO 初始化要做的事情
     */
    private void dealInit(){
        /*sqliteHelper.dropTable(ModelFactory.getLoginTableName());
        sqliteHelper.dropTable(ModelFactory.getUserTableName());*/
        // 判断默认头像是否存在，不存在则复制到SD卡
        File file = BitmapUtil.getImageFile(getApplicationContext(), LoveApplication.DEFAULT_AVATAR);
        if(!file.exists() || file.isFile()){
            Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.avatar_default);
            BitmapUtil.saveBitmap(file, bitmap);
        }
    }

}