blocks|key|4358915|text|你有没有尝试设置你发布的链接中描述的所有四个属性？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4358916|例如。|4358917|app:autoSizeTextType="uniform"
app:autoSizeMaxTextSize="13sp"
app:autoSizeMinTextSize="5sp"
app:autoSizeStepGranularity="1sp"|code-block|syntax|javascript|4358918|您还可以尝试将宽度和高度都设置为wrap_content，并将minWidth和maxWidth设置为56dp。|4358919|正如pos还在评论中提到的，maxline似乎会带来问题(对我也是)，所以试着删除它(自动调整大小可能会通过减小文本大小来解决这个问题)。|4358920|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Have you tried setting all of the four attributes described in the link you posted?

E.g. 

<pre><code>app:autoSizeTextType="uniform"
app:autoSizeMaxTextSize="13sp"
app:autoSizeMinTextSize="5sp"
app:autoSizeStepGranularity="1sp"
</code></pre>

You can also try setting both width and height to wrap_content, and setting minWidth and maxWidth to 56dp.

As poss also mentioned in the comments, maxlines seems to cause problems (for me as well), so try removing that (The autosizing should probably take care of this, by reducing the textsize).

blocks|key|4358941|text|我也有同样的问题。我通过修改gradle中的两行代码解决了这个问题：compile+'com.android.support:support-v4:26.0.1'和compile+'com.android.support:appcompat-v7:26.0.1'，为了适应更长的文本，你必须添加所有四个选项，如下所示：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4358942|<android.support.v7.widget.AppCompatTextView
++++++++android:layout_width="match_parent"
++++++++android:layout_height="match_parent"
++++++++android:text="@string/your_string"
++++++++app:autoSizeTextType="uniform"
++++++++app:autoSizeMaxTextSize="13sp"
++++++++app:autoSizeMinTextSize="5sp"
++++++++app:autoSizeStepGranularity="1sp"/>|code-block|syntax|javascript|4358943|entityMap^0|Y|1B|2A|1D|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

I had the same issue.
I solved it by changing two lines in my gradle:
<code>compile 'com.android.support:support-v4:26.0.1'</code> and 
<code>compile 'com.android.support:appcompat-v7:26.0.1'</code>
To fit longer texts you have to add all four options, like this:

<pre><code>&lt;android.support.v7.widget.AppCompatTextView
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:text="@string/your_string"
 app:autoSizeTextType="uniform"
 app:autoSizeMaxTextSize="13sp"
 app:autoSizeMinTextSize="5sp"
 app:autoSizeStepGranularity="1sp"/&gt;
</code></pre>

blocks|key|4359287|text|如下配置您的TextView|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4359288|<TextView
++++android:id="@%2Bid/vName"
++++android:layout_width="56dp"
++++android:layout_height="wrap_content"
++++android:maxLines="1"
++++android:text="Groupa"
++++app:autoSizeMinTextSize="12sp"
++++app:autoSizeMaxTextSize="20sp"
++++app:autoSizeTextType="uniform"
++++/>|code-block|syntax|javascript|4359289|在Android+22、23、26上运行良好|4359290|📷|atomic|4359291|​|4359292|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/6c7ec4569f42baa607e99246cb9b189e.png|imageAlt^0|6|8|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|13|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|14|8|@]|D|@]|E|$]]|$1|M|3|N|5|O|7|15|8|@]|D|@$9|16|A|17|1|18]]|E|$]]|$1|P|3|Q|5|6|7|19|8|@]|D|@]|E|$]]|$1|R|3|-4|5|6|7|1A|8|@]|D|@]|E|$]]]|S|$T|$5|U|V|W|E|$X|Y|Z|-4]]]]

Config your <code>TextView</code> like this

<pre><code>&lt;TextView
 android:id="@+id/vName"
 android:layout_width="56dp"
 android:layout_height="wrap_content"
 android:maxLines="1"
 android:text="Groupa"
 app:autoSizeMinTextSize="12sp"
 app:autoSizeMaxTextSize="20sp"
 app:autoSizeTextType="uniform"
 /&gt;
</code></pre>

Work well on Android 22, 23, 26 
<a href="https://i.stack.imgur.com/L5rHf.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/L5rHf.png" alt="enter image description here"></a>

blocks|key|4358995|text|如果您不知道文本视图的大小。例如，你将它们放在线性布局中，并将高度或宽度设置为0dp。然后我有了一个解决方案。您需要在OnSizeChanged事件中执行setAutoSizeTextTypeWithDefaults。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4358996|@Override
++++protected+void+onSizeChanged(int+w,+int+h,+int+oldw,+int+oldh)+{
++++++++this.setAutoSizeTextTypeWithDefaults(AUTO_SIZE_TEXT_TYPE_UNIFORM);

++++}|code-block|syntax|javascript|4358997|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

if you do not know size of textview. e.g. you put them in linearlayout and set height or width to 0dp. then I got a solution. you need to setAutoSizeTextTypeWithDefaults in OnSizeChanged event.

<pre><code>@Override
 protected void onSizeChanged(int w, int h, int oldw, int oldh) {
 this.setAutoSizeTextTypeWithDefaults(AUTO_SIZE_TEXT_TYPE_UNIFORM);

 }
</code></pre>

blocks|key|4359413|text|除了其他正确的答案之外，我还发现了另一个阻止自动调整大小的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4359414|请勿将android:singleLine="true"与自动调整大小一起使用。请改用较新的android:maxLines="1"。|offset|length|style|CODE|4359415|entityMap^0|0|3|P|1A|K|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]|$D|N|E|O|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|P|8|@]|9|@]|A|$]]]|I|$]]

Additional to the other correct answers I found another point which prevents autosizing to work.

Do not use <code>android:singleLine="true"</code> together with autosizing. Use the newer <code>android:maxLines="1"</code> instead.

blocks|key|4359456|text|在我的例子中，有一些非常愚蠢的问题:虽然自动调整大小对我来说总是很好，但在恰好有一个TextView上，我使用了android:名称空间而不是app:！我完全忘记了我的错误，一直在想为什么它不起作用。因此，在使用AppCompat主题时，请始终确保使用AppCompat属性，而不是本机属性。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4359457|entityMap^0|1K|8|1Z|4|2Y|9|3I|9|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|G|$]]

In my case something very stupid was the issue: While autosizing always worked fine for me, on exactly one TextView I used the <code>android:</code> namespace instead of <code>app:</code>! I was totally oblivious to my mistake and kept wondering why it didn't work. So when using an <code>AppCompat</code> theme always make sure to use the <code>AppCompat</code> attributes, not the native ones.

blocks|key|4359481|text|确保按照@Henning所说的那样使用android:maxLines=1。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4359482|<androidx.appcompat.widget.AppCompatTextView
++++++++++++android:layout_width="wrap_content"
++++++++++++android:layout_height="wrap_content"
++++++++++++android:gravity="center"
++++++++++++android:textColor="@color/white"
++++++++++++android:textSize="16sp"
++++++++++++android:textStyle="bold"

++++++++++++android:maxLines="1"
++++++++++++app:autoSizeMaxTextSize="16sp"
++++++++++++app:autoSizeMinTextSize="12sp"
++++++++++++app:autoSizeTextType="uniform"

++++++++++++tools:text="Downloading"+/>|code-block|syntax|javascript|4359483|entityMap^0|J|I|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

Makesure use <code>android:maxLines=1</code> as @Henning said.

<pre><code>&lt;androidx.appcompat.widget.AppCompatTextView
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:gravity="center"
 android:textColor="@color/white"
 android:textSize="16sp"
 android:textStyle="bold"

 android:maxLines="1"
 app:autoSizeMaxTextSize="16sp"
 app:autoSizeMinTextSize="12sp"
 app:autoSizeTextType="uniform"

 tools:text="Downloading" /&gt;
</code></pre>

blocks|key|4359499|text|除了单行TextView的自动调整大小属性外，我还必须添加textSize，这样换行的高度就足够大，可以让文本调整到它定义的最大尺寸|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4359500|android:lines="1"
android:maxLines="1"
android:textSize="30sp"
app:autoSizeMaxTextSize="30sp"
app:autoSizeMinTextSize="12sp"
app:autoSizeTextType="uniform"|code-block|syntax|javascript|4359501|entityMap^0|4|8|T|8|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

Beside autosize attributes for single line <code>TextView</code> I had to add <code>textSize</code> too, so the height which was wrap, was big enough to let the text resize to it's maximum size defined
<pre><code>android:lines=&quot;1&quot;
android:maxLines=&quot;1&quot;
android:textSize=&quot;30sp&quot;
app:autoSizeMaxTextSize=&quot;30sp&quot;
app:autoSizeMinTextSize=&quot;12sp&quot;
app:autoSizeTextType=&quot;uniform&quot;
</code></pre>

I use new autosize feature added in support library 26. I read a documentation which can be found here : 
<a href="https://developer.android.com/preview/features/autosizing-textview.html" rel="noreferrer">https://developer.android.com/preview/features/autosizing-textview.html</a>

I suppose that it should work this way: You can enable auto-sizing with this attribute: <code>app:autoSizeTextType="uniform"</code>. I think that <code>TextView</code> should use all available space to display a whole text (not just a part - it shouldn't be cropped) and the <code>textSize</code> should be as big as possible. If you need to limit a maximum or minimum size of the text then you can use these two attributes:

<pre><code>app:autoSizeMinTextSize="XXsp" // (you can also use px or dp values.)
</code></pre>

or

<pre><code>app:autoSizeMaxTextSize="XXsp"
</code></pre>

So far so good. Let's say that I need a TextView with 56dp width. I have texts with a different length and I want to set these texts to this <code>TextView</code>. It should be automatically resized so it displays the whole text (all characters + not cropped) in the biggest possible <code>textSize</code>. 

This is my TextView:

<pre><code>&lt;android.support.v7.widget.AppCompatTextView
 android:id="@+id/vName"
 style="@style/TextView.AutoSize"
 android:layout_width="56dp"
 android:gravity="bottom|center_horizontal"
 android:maxLines="1"
 app:autoSizeMinTextSize="1px"
 app:autoSizeTextType="uniform"
 app:layout_constraintBottom_toTopOf="@id/vGuideline"
 app:layout_constraintLeft_toLeftOf="parent"
 app:layout_constraintRight_toRightOf="parent" /&gt;
</code></pre>

Unfortunately, the text view is cropped. I wanted to set this String as a text to the TextView above: "Groupa" but this is the result:
<a href="https://i.stack.imgur.com/mU6cn.png" rel="noreferrer"><img src="https://i.stack.imgur.com/mU6cn.png" alt="enter image description here"></a>

(TextView is inside ConstraintLayout with yellow circle background.)

As you can see the textview is not resized at all. Do you have any idea what to do? 

Thanks.

Autosizing of TextView doesn't work (Android O)

Android

我使用的是支持库26中新增的自动调整大小功能。我阅读了一个文档，可以在这里找到：我认为它应该是这样工作的:您可以使用以下属性启用自动调整大小：app:autoSizeTextType="uniform"。我认为TextView应该使用所有可用的空间来显示整个文本(而不仅仅是一部分--它不应该被裁剪)，并且textSiz...

问TextView自动调整大小不起作用(Android O)
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