加载数据时如何实现progressBar? [英] How to implement progressBar while loading data?

问题描述

我想实现下图所示的progressBar.

I want to implement progressBar like on the picture below.

现在，我已经从片段类中分离出了AsyncTask，并且我使用该AsyncTask来加载数据，并且现在我实现了progressBar对话框，但是我想摆脱它，因为我想制作一个更好的UX

Right now, I have AsyncTask whic is sperated from fragments classes, and I use that AsyncTask to load data, and right now I have implement progressBar dialog, but I want to get rid of that, because I want make a better UX.

我在onPreExecute()方法中显示了ProgressBar对话框，然后在onPostExecute上将其关闭.

I show that ProgressBar dialog in onPreExecute() method, and then dismiss it onPostExecute.

所以，我如何实现背景进度栏，如下图所示

So, how I can implement background Progress bar like on the picture below

推荐答案

Dude，

如果您真的只想要一个进度条，如您发布的图片，则只需将进度条的 indeterminate 属性设置为true即可:)

If you really just want a progress bar like the picture you posted, you can simply set the progress bar indeterminate property to true :)

您可以对代码进行编码，也可以直接在xml上进行编码.

You can eighter do on code or directly on the xml.

在代码中:

yourProgressBar.setIndeterminate(true);

在XML中，只需将属性indeterminate设置为true.

In your XML, just set the attribute indeterminate to true.

以下是一个简单的布局示例:

Here's is a simple layout as an example:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

<ProgressBar
    android:id="@+id/progressBar1"
    style="?android:attr/progressBarStyleLarge"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerHorizontal="true"
    android:layout_centerVertical="true"
    android:indeterminate="true" />

</RelativeLayout>

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