MyApplication.java

package com.txsc;

import java.util.Stack;

import com.nostra13.universalimageloader.cache.disc.naming.Md5FileNameGenerator;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;
import com.nostra13.universalimageloader.core.assist.QueueProcessingType;

import android.app.Activity;
import android.app.Application;
import android.content.Context;

public class MyApplication extends Application {
	/**
	 * 入口application
	 */

	private static Stack<Activity> activityStack;
	private static MyApplication singleton;

	@Override
	public void onCreate() {
		super.onCreate();
		initImageLoader(this);
		singleton = this;
		CrashHandler.getInstance().init(this);
	}

	/**
	 * 初始化图片加载
	 * 
	 * @param context
	 */
	public static void initImageLoader(Context context) {
		ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(
				context).threadPriority(Thread.NORM_PRIORITY - 2)
				.denyCacheImageMultipleSizesInMemory()
				.diskCacheFileNameGenerator(new Md5FileNameGenerator())
				.diskCacheSize(50 * 1024 * 1024) // 50 Mb
				.tasksProcessingOrder(QueueProcessingType.LIFO).build();
		ImageLoader.getInstance().init(config);
	}

	/**
	 * 获得application对象
	 * 
	 * @return
	 */
	public static MyApplication getInstance() {
		return singleton;
	}

	/**
	 * activity加入栈
	 * 
	 * @param paramActivity
	 */
	public void addActivity(Activity paramActivity) {
		if (activityStack == null)
			activityStack = new Stack<Activity>();
		activityStack.add(paramActivity);
	}

	/**
	 * 结束所有activity
	 */
	public void finishAllActivity() {
		try {
			for (Activity activity : activityStack) {
				if (activity != null)
					activity.finish();
			}
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			System.exit(0);
		}
	}

}