在Activity的onCreate中，只需在EditText元素上添加useclearFocus（）。例如

edittext = (EditText) findViewById(R.id.edittext);
edittext.clearFocus();

如果您想将焦点转移到另一个元素，请使用requestFocus（）。例如

button = (Button) findViewById(R.id.button);
button.requestFocus();

在父布局（例如LinearLayout或ConstraintLayout）中添加标签android:focusableInTouchMode=“true”和android:focusable=“true”将解决该问题。

<!-- Dummy item to prevent AutoCompleteTextView from receiving focus -->
<LinearLayout
    android:focusable="true" 
    android:focusableInTouchMode="true"
    android:layout_width="0px" 
    android:layout_height="0px"/>

<!-- :nextFocusUp and :nextFocusLeft have been set to the id of this component
to prevent the dummy from receiving focus again -->
<AutoCompleteTextView android:id="@+id/autotext"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content"
    android:nextFocusUp="@id/autotext" 
    android:nextFocusLeft="@id/autotext"/>

当按下按钮时，我使用以下代码阻止EditText窃取焦点。

addButton.setOnClickListener(new OnClickListener() {
    public void onClick(View v) {
        View focused = internalWrapper.getFocusedChild();
        focused.setVisibility(GONE);
        v.requestFocus();
        addPanel();
        focused.setVisibility(VISIBLE);
    }
});

Basically, hide the edit text and then show it again. This works for me as the EditText is **not** in view so it doesn't matter whether it is showing.

You could try hiding and showing it in succession to see if that helps it lose focus.

问题似乎来自我只能在布局的XML形式中看到的属性。

确保在EditText XML标记中删除声明末尾的此行：

<requestFocus />

这应该是这样的：

<EditText
   android:id="@+id/emailField"
   android:layout_width="fill_parent"
   android:layout_height="wrap_content"
   android:inputType="textEmailAddress">

   //<requestFocus /> /* <-- without this line */
</EditText>

我尝试了几个单独的答案，但重点仍然是EditText。我只通过以下两种解决方案一起解决了这个问题。

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:id="@+id/mainLayout"
  android:descendantFocusability="beforeDescendants"
  android:focusableInTouchMode="true" >

（参考Silverhttps://stackoverflow.com/a/8639921/15695 )

并删除

<requestFocus />

在EditText

（来自吸毒者的参考资料https://stackoverflow.com/a/9681809 )

我找到的唯一解决方案是：

创建LinearLayout（我不知道其他类型的Layout是否有效）设置属性android:focusable=“true”和android:focuableInTouchMode=“true“

并且EditText在开始活动后无法获得焦点