操作栏下的进度条 [英] ProgressBar under Action Bar
问题描述
问题摘要:如何将 ProgressBar
集成到 ActionBar
中,就像在 Chrome 应用中一样?
Question Summary: How can I make a ProgressBar
integrated inside the ActionBar
, like on the Chrome App?
详细信息:在 Chrome 中查看此屏幕截图:
Details: Look at this screenshot from Chrome:
我想像这样创建一个操作栏.就在操作栏下方,有一个根据页面加载填充的 ProgressBar.我已经从很多应用程序中看到了这个例子,比如 Feedly,但我一直无法创建自己的实现.我尝试使用 Android 自己的 API 来创建它:
I want to create an Action Bar just like this. Just under the Action Bar, there's a ProgressBar that fills according to page load. I've seen this example from many apps, like Feedly, but I haven't been able to create my own implementation. I tried using Android's own APIs to create it:
@Override
protected void onCreate(Bundle savedInstanceState) {
//Request Permission to display the Progress Bar...
this.requestWindowFeature(Window.FEATURE_PROGRESS);
this.setWindowContentView(R.layout.activity_main)
super.onCreate(savedInstanceState);
this.setProgressBarIndeterminate(true);
}
但这段代码只会使 ProgressBar 显示超过操作栏,如下所示:
But this code only causes the ProgressBar to show over the Action Bar, like so:
那么,如何让我的 ProgressBar 出现在操作栏下,就像在 Chrome 应用上一样?
So, how can I make my ProgressBar appear under the Action Bar, like on the Chrome App?
推荐答案
这现在是可以使用 SwipeRefreshLayout.
你可以用 SwipeRefreshLayout
包裹你的可滚动视图,然后你只需要监听 onRefresh 事件:
You can wrap your scrollable view with a SwipeRefreshLayout
and then you just need to listen to onRefresh events:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
swipeLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_container);
swipeLayout.setOnRefreshListener(this);
swipeLayout.setColorScheme(android.R.color.holo_blue_bright,
android.R.color.holo_green_light,
android.R.color.holo_orange_light,
android.R.color.holo_red_light);
}
@Override public void onRefresh() {
new Handler().postDelayed(new Runnable() {
@Override public void run() {
swipeLayout.setRefreshing(false);
}
}, 5000);
}
可以在此博客中找到一个不错的简单教程.
A nice and simple tutorial can be found in this blog.
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