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Android 碎片中使用碎片，用handler更新UI时报错?报错

class myrunn implements Runnable { @Override public void run() { list = new ArrayList(); for (int i = 0; i list.add("新闻" + i); } handler2.obtainMessag...

关于android更新ui的问题

为什么setClickable可以在线程中修改ui而setEnable和setVisibilty不能在线程中使用。

Android 更新UI 耗时问题

假如现在我得到了某个List,里面有1000个字符串，然后我想我在主线程中按下某个Button之后，把它们都动态地加载到UI上来，完全是用代码动态添加的布局，然后执行的时候发现有点耗时。现在有两个问题： 1.有没有什么机制可以让它加载地更快，因为发现更新UI的语句只能在主线程执行，但是耗时的本身就...

android中使用按钮更新UI 的方法

使用以下代码想实现:当点击一个按钮后要显示一个图像，两秒后这个图像又变得不可见。但是运行代码后，点击按钮，图像一直是不可见的。我是不是该用另一种方法来实现这个功能呢？使用handlers还是不对，还有什么方法呢？

Android Service和广播联合更新UI的例子

在Android中，异步更新UI，通常我们会选用Handler启动线程，或者sendMessage的方式，那么利用Service和广播也可以更新UI的，例子如下：我们建立一个Service： package com.andy import android.app.Service;//引入相关包 im...

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更新时间 2022-10-08 15:24:46

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