增加的Youtube缩略图大小 [英] Increasing a Youtube Thumbnail Size

问题描述

我从下面的教程进口源：

I've imported the source from the following tutorial:

HTTP：//blog.blundell-apps .COM /显示，YouTube的用户，视频-IN-A-列表视图/

https://github.com/blundell/YouTubeUserFeed/tree/master/ RES /布局

但我似乎不能增加缩略图的尺寸 - 我试着从我的XML改变userVideoThumbImageView：

but I cannot seem to increase the size of the thumbnails - I've tried changing userVideoThumbImageView in my XML from:

    android:layout_width="wrap_content"
    android:layout_height="wrap_content"

到

    android:layout_width="80dip"
    android:layout_height="80dip"


    but it only seems to increase the size of the black space around the thumbnail. 

XML：

<?xml version="1.0" encoding="utf-8"?>


<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:gravity="center_vertical"
    android:orientation="horizontal" >

    <com.blundell.tut.ui.widget.UrlImageView
        android:id="@+id/userVideoThumbImageView"
        android:layout_width="80dip"
        android:layout_height="80dip"
        android:contentDescription="YouTube video thumbnail"
        android:src="@drawable/ic_launcher" />

    <TextView
        android:id="@+id/userVideoTitleTextView"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Video Title Not Found" />

</LinearLayout>

截图：

SCREENSHOT:

推荐答案

这教程是不是所有实现异步任务好。虽然可运行做工精细，在Android中一个的AsyncTask将提供更多的控制。

That tutorial isn't all that good in implementing asynchronous tasks. While runnables work fine, in Android an AsyncTask will provide more control.

现在，您所遇到的问题，我认为，YouTube的各种尺寸提供缩略图，你似乎是拉小的。使用一个较大的帮助，但会慢一些。

Now, for the issue you are having, I believe that youtube provides thumbnails in various sizes, you seem to be pulling the small one. Using a larger one will help but will be slower.

在类GetYouTubeUserVideosTask，你会发现code行

In the class GetYouTubeUserVideosTask, you'll find the line of code

字符串thumbUrl = jsonObject.getJSONObject（缩略图）的getString（sqDefault）;

这是拉动正在接收从JSON标准质量的图像，你应该使用高品质的图像。这可以通过改变要实现

It it pulling the Standard Quality image from the JSON being received, you should use the High Quality image. That can be achieved by changing to

字符串thumbUrl = jsonObject.getJSONObject（缩略图）的getString（hqDefault）;

您可以做一个样品要求，看到随​​时将数据通过在URL寻找被使用，回报看起来parcially是这样的：

You can do a sample request and see the data at anytime by looking at the url being used, the return looks parcially like this:

缩略图：{sqDefault： https：//开头我。 ytimg.com/vi/NnL0QOtK-o8/default.jpg ，hqDefault：的 https://i.ytimg.com/vi/NnL0QOtK-o8/hqdefault.jpg }

"thumbnail":{"sqDefault":"https://i.ytimg.com/vi/NnL0QOtK-o8/default.jpg","hqDefault":"https://i.ytimg.com/vi/NnL0QOtK-o8/hqdefault.jpg"}

这样，你知道你有多种选择。

That way you know you have various options.

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