自带finish清除网络请求的Activity

最新推荐文章于 2022-06-26 08:53:41 发布

代先生-

最新推荐文章于 2022-06-26 08:53:41 发布

阅读量2.2k

点赞数

CC 4.0 BY-SA版权

分类专栏： Android 文章标签： android 文档 class

本文链接：https://blog.youkuaiyun.com/ElevenDGQ/article/details/50543737

Android 专栏收录该内容

48 篇文章

订阅专栏

本文介绍了一个Android应用中管理网络请求的方法。通过创建Activity基类，包括支持ActionBar和Fragment的Activity，实现了对HttpHandler的统一管理和取消操作。在Activity结束前会取消所有正在进行的网络请求，避免内存泄漏。

package com.yaoxin.newapp;

import java.util.ArrayList;

import android.app.Activity;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;

import com.lidroid.xutils.http.HttpHandler;

public class NetworkActionBarActivity extends ActionBarActivity {

protected ArrayList<HttpHandler<?>> httpHandlers = new ArrayList<HttpHandler<?>>();

public void cancelHandler(HttpHandler<?> handler){
try {
if (handler != null){
handler.cancel();
}
httpHandlers.remove(handler);
} catch (Exception e) {
// TODO: handle exception
}
}

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}

@Override
public void finish(){
for (HttpHandler<?> httpHandler: httpHandlers){
httpHandler.cancel();
}
super.finish();
}

}

package com.yaoxin.newapp;

import java.util.ArrayList;

import android.app.Activity;
import android.os.Bundle;

import com.lidroid.xutils.http.HttpHandler;

public class NetworkActivity extends Activity {

protected ArrayList<HttpHandler<?>> httpHandlers = new ArrayList<HttpHandler<?>>();

public void cancelHandler(HttpHandler<?> handler){
try {
if (handler != null){
handler.cancel();
}
httpHandlers.remove(handler);
} catch (Exception e) {
// TODO: handle exception
}
}

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}

@Override
public void finish(){
for (HttpHandler<?> httpHandler: httpHandlers){
httpHandler.cancel();
}
super.finish();
}

}

package com.yaoxin.newapp;

import java.util.ArrayList;

import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;

import com.lidroid.xutils.http.HttpHandler;

public class NetworkFragmentActivity extends FragmentActivity {

protected ArrayList<HttpHandler<?>> httpHandlers = new ArrayList<HttpHandler<?>>();

public void cancelHandler(HttpHandler<?> handler){
try {
if (handler != null){
handler.cancel();
}
httpHandlers.remove(handler);
} catch (Exception e) {
// TODO: handle exception
}
}

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}

@Override
public void finish(){
for (HttpHandler<?> httpHandler: httpHandlers){
httpHandler.cancel();
}
super.finish();
}

}