87 lines
2.2 KiB
Java
87 lines
2.2 KiB
Java
package com.zlm.hp.async;
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import com.zlm.hp.handler.WeakRefHandler;
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/**
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* 异步handler任务
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* Created by zhangliangming on 2018-08-12.
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*/
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public class AsyncHandlerTask {
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private WeakRefHandler mUIHandler;
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private WeakRefHandler mWorkerHandler;
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public AsyncHandlerTask(WeakRefHandler uiHandler, WeakRefHandler workerHandler) {
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this.mUIHandler = uiHandler;
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this.mWorkerHandler = workerHandler;
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}
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/**
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* 执行后台任务
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*
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* @param task 任务
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*/
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public void execute(Task task) {
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execute(mUIHandler, mWorkerHandler, task);
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}
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/**
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* 执行后台任务，子线程返回或者主线程返回
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*
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* @param uiHandler
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* @param workerHandler
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* @param task
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*/
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private void execute(final WeakRefHandler uiHandler, final WeakRefHandler workerHandler, final Task task) {
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if (workerHandler != null) {
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workerHandler.post(new Runnable() {
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@Override
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public void run() {
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Object result = null;
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if (workerHandler.isAlive()) {
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if (task != null) {
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result = task.doInBackground();
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}
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}
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if (uiHandler != null) {
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final Object finalResult = result;
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uiHandler.post(new Runnable() {
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@Override
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public void run() {
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if (uiHandler.isAlive()) {
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if (task != null) {
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task.onPostExecute(finalResult);
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}
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}
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}
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});
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}
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}
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});
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}
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}
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/**
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* 工作任务
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*/
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public static abstract class Task<T> {
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/**
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* 后台执行
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*
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* @return
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*/
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protected abstract T doInBackground();
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/**
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* 主线程回调
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*
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* @param result
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*/
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protected void onPostExecute(T result) {
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}
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}
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}
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