com.hadoopz.MyDroidLib.util.ActivityStack Maven / Gradle / Ivy
/*
* Copyright 2017 jw362j.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hadoopz.MyDroidLib.util;
/**
*
* @author jw362j
*/
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Stack;
import android.app.Activity;
/**
* activity堆栈管理
*
* @author blue
*/
public class ActivityStack
{
private static ActivityStack mSingleInstance;
private Stack mActicityStack;
private ActivityStack()
{
mActicityStack = new Stack();
}
public static ActivityStack getInstance()
{
if (null == mSingleInstance)
{
mSingleInstance = new ActivityStack();
}
return mSingleInstance;
}
public Stack getStack()
{
return mActicityStack;
}
/**
* 入栈
*
* @author blue
*/
public void addActivity(Activity activity)
{
mActicityStack.push(activity);
}
/**
* 出栈
*
* @author blue
*/
public void removeActivity(Activity activity)
{
mActicityStack.remove(activity);
}
/**
* 彻底退出
*
* @author blue
*/
public void finishAllActivity()
{
Activity activity;
while (!mActicityStack.empty())
{
activity = mActicityStack.pop();
if (activity != null)
activity.finish();
}
}
/**
* finish指定的activity
*
* @author blue
*/
public boolean finishActivity(Class actCls)
{
Activity act = findActivityByClass(actCls);
if (null != act && !act.isFinishing())
{
act.finish();
return true;
}
return false;
}
public Activity findActivityByClass(Class actCls)
{
Activity aActivity = null;
Iterator itr = mActicityStack.iterator();
while (itr.hasNext())
{
aActivity = itr.next();
if (null != aActivity && aActivity.getClass().getName().equals(actCls.getName()) && !aActivity.isFinishing())
{
break;
}
aActivity = null;
}
return aActivity;
}
/**
* finish指定的activity之上的所有activity
*
* @author blue
*/
public boolean finishToActivity(Class actCls, boolean isIncludeSelf)
{
List buf = new ArrayList();
int size = mActicityStack.size();
Activity activity = null;
for (int i = size - 1; i >= 0; i--)
{
activity = mActicityStack.get(i);
if (activity.getClass().isAssignableFrom(actCls))
{
for (Activity a : buf)
{
a.finish();
}
return true;
} else if (i == size - 1 && isIncludeSelf)
{
buf.add(activity);
} else if (i != size - 1)
{
buf.add(activity);
}
}
return false;
}
}