blocks|key|538035|text|可以通过调用View#getFocusables来实现这一点，它将返回一个视图中所有可聚焦视图的数组列表。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|538036|然后，您可以使用(instanceof)检查它们是否为EditTexts，或者对所有它们执行操作。|538037|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.android.com/reference/android/view/View.html#getFocusables%2528int%2529^0|6|I|6|I|0|0|9|A|R|8|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]]|D|@$9|S|A|T|1|U]]|E|$]]|$1|F|3|G|5|6|7|V|8|@$9|W|A|X|B|C]|$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|10|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

You can do it by calling <a href="http://developer.android.com/reference/android/view/View.html#getFocusables%28int%29" rel="noreferrer"><code>View#getFocusables</code></a>, which will return an arraylist of all focusable views in a View. 

Then you can either check if they are <code>EditText</code>s, with (<code>instanceof</code>) or act on all of them.

blocks|key|538126|text|这是我写的一个方法，用来递归地检查ViewGroup的所有EditText子代，对于我必须做的长注册表单来说很方便，而且可能更易于维护。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|538127|private+EditText+traverseEditTexts(ViewGroup+v)
{
++++EditText+invalid+=+null;
++++for+(int+i+=+0;+i+<+v.getChildCount();+i%2B%2B)
++++{
++++++++Object+child+=+v.getChildAt(i);+
++++++++if+(child+instanceof+EditText)
++++++++{
++++++++++++EditText+e+=+(EditText)child;
++++++++++++if(e.getText().length()+==+0)++++//+Whatever+logic+here+to+determine+if+valid.
++++++++++++{
++++++++++++++++return+e;+++//+Stops+at+first+invalid+one.+But+you+could+add+this+to+a+list.
++++++++++++}
++++++++}
++++++++else+if(child+instanceof+ViewGroup)
++++++++{
++++++++++++invalid+=+traverseEditTexts((ViewGroup)child);++//+Recursive+call.
++++++++++++if(invalid+!=+null)
++++++++++++{
++++++++++++++++break;
++++++++++++}
++++++++}
++++}
++++return+invalid;
}

private+boolean+validateFields()
{+++
++++EditText+emptyText+=+traverseEditTexts(mainLayout);
++++if(emptyText+!=+null)
++++{
++++++++Toast.makeText(this,+"This+field+cannot+be+empty.",+Toast.LENGTH_SHORT).show();
++++++++emptyText.requestFocus();++++++//+Scrolls+view+to+this+field.
++++}
++++return+emptyText+==+null;
}|code-block|syntax|javascript|538128|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|$]]

Here's a method I wrote to recursively check all EditText children of a ViewGroup, handy for a long sign-up form I had to do and probably more maintainable.

<pre><code>private EditText traverseEditTexts(ViewGroup v)
{
 EditText invalid = null;
 for (int i = 0; i &lt; v.getChildCount(); i++)
 {
 Object child = v.getChildAt(i); 
 if (child instanceof EditText)
 {
 EditText e = (EditText)child;
 if(e.getText().length() == 0) // Whatever logic here to determine if valid.
 {
 return e; // Stops at first invalid one. But you could add this to a list.
 }
 }
 else if(child instanceof ViewGroup)
 {
 invalid = traverseEditTexts((ViewGroup)child); // Recursive call.
 if(invalid != null)
 {
 break;
 }
 }
 }
 return invalid;
}

private boolean validateFields()
{ 
 EditText emptyText = traverseEditTexts(mainLayout);
 if(emptyText != null)
 {
 Toast.makeText(this, "This field cannot be empty.", Toast.LENGTH_SHORT).show();
 emptyText.requestFocus(); // Scrolls view to this field.
 }
 return emptyText == null;
}
</code></pre>

blocks|key|538206|text|这个方法递归地遍历所有ViewGroups并收集它们的TextViews。我用它来给所有的TextViews分配一个新的颜色(即使是那些嵌入到预定义的小部件中的小部件，比如Switch等，这些小部件都使用了TextViews)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|538207|private+HashSet<TextView>+getTextViews(ViewGroup+root){
++++HashSet<TextView>+views=new+HashSet<>();
++++for(int+i=0;i<root.getChildCount();i%2B%2B){
++++++++View+v=root.getChildAt(i);
++++++++if(v+instanceof+TextView){
++++++++++++views.add((TextView)v);
++++++++}else+if(v+instanceof+ViewGroup){
++++++++++++views.addAll(getTextViews((ViewGroup)v));
++++++++}
++++}
++++return+views;
}|code-block|syntax|javascript|538208|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|$]]

This Methods walks recursively through all ViewGroups and collects their TextViews. I use this to assign a new Color to all TextViews (even those embedded in predefined Widgets like Switch etc that make use of TextViews) 

<pre><code>private HashSet&lt;TextView&gt; getTextViews(ViewGroup root){
 HashSet&lt;TextView&gt; views=new HashSet&lt;&gt;();
 for(int i=0;i&lt;root.getChildCount();i++){
 View v=root.getChildAt(i);
 if(v instanceof TextView){
 views.add((TextView)v);
 }else if(v instanceof ViewGroup){
 views.addAll(getTextViews((ViewGroup)v));
 }
 }
 return views;
}
</code></pre>

blocks|key|754766|text|获取任意类型布局中的所有编辑文本。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|754767|public+List<EditText>+getAllEditTexts(ViewGroup+layout){
++++++++List<EditText>+views+=+new+ArrayList<>();
++++++++for(int+i+=0;+i<+layout.getChildCount();+i%2B%2B){
++++++++++++View+v+=layout.getChildAt(i);
++++++++++++if(v+instanceof+EditText){
++++++++++++++++views.add((EditText)v);
++++++++++++}
++++++++}
++++++++return+views;
++++}|code-block|syntax|javascript|754768|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|$]]

Get all Edit Text in any type of layout.

<pre><code>public List&lt;EditText&gt; getAllEditTexts(ViewGroup layout){
 List&lt;EditText&gt; views = new ArrayList&lt;&gt;();
 for(int i =0; i&lt; layout.getChildCount(); i++){
 View v =layout.getChildAt(i);
 if(v instanceof EditText){
 views.add((EditText)v);
 }
 }
 return views;
 }
</code></pre>

can anyone help me with coding a method to get all EditTexts in a view? I would like to implement the solution htafoya posted here:
<a href="https://stackoverflow.com/questions/4165414/how-to-hide-soft-keyboard-on-android-after-clicking-outside-edittext/4168116#4168116">How to hide soft keyboard on android after clicking outside EditText?</a>

Unfortunately the <code>getFields()</code> method is missing and htafoya did not answer our request to share his <code>getFields()</code> method.

Method to get all EditTexts in a View

有没有人可以帮我编写一个方法，让所有的EditTexts都出现在一个视图中？我想在这里实现htafoya发布的解决方案：不幸的是，getFields()方法丢失了，并且htafoya没有响应我们分享他的getFields()方法的请求。

问方法来获取视图中的所有EditTexts
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问方法来获取视图中的所有EditTextsEN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问方法来获取视图中的所有EditTexts
EN