我在Android中有一个活动,包含两个元素:
编辑文本列表视图
当“活动”启动时,EditText立即具有输入焦点(闪烁光标)。我不希望任何控件在启动时具有输入焦点。我尝试了:
EditText.setSelected(false);
EditText.setFocusable(false);
没有运气。如何说服EditText在“活动”启动时不选择自己?
我在Android中有一个活动,包含两个元素:
编辑文本列表视图
当“活动”启动时,EditText立即具有输入焦点(闪烁光标)。我不希望任何控件在启动时具有输入焦点。我尝试了:
EditText.setSelected(false);
EditText.setFocusable(false);
没有运气。如何说服EditText在“活动”启动时不选择自己?
当前回答
<EditText
android:layout_width="match_parent"
android:layout_height="100dp"
android:id="@+id/etComments"
android:hint="Comments.."
android:textSize="14dp"
android:focusable="false"
android:textStyle="italic"/>
其他回答
在第一个可编辑字段之前尝试以下操作:
<TextView
android:id="@+id/dummyfocus"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/foo"
/>
findViewById(R.id.dummyfocus).setFocusableInTouchMode(true);
findViewById(R.id.dummyfocus).requestFocus();
利用其他海报提供的信息,我使用了以下解决方案:
在布局XML中
<!-- Dummy item to prevent AutoCompleteTextView from receiving focus -->
<LinearLayout
android:id="@+id/linearLayout_focus"
android:focusable="true"
android:focusableInTouchMode="true"
android:layout_width="0px"
android:layout_height="0px"/>
<!-- AUTOCOMPLETE -->
<AutoCompleteTextView
android:id="@+id/autocomplete"
android:layout_width="200dip"
android:layout_height="wrap_content"
android:layout_marginTop="20dip"
android:inputType="textNoSuggestions|textVisiblePassword"/>
在onCreate()中
private AutoCompleteTextView mAutoCompleteTextView;
private LinearLayout mLinearLayout;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.mylayout);
//get references to UI components
mAutoCompleteTextView = (AutoCompleteTextView) findViewById(R.id.autocomplete);
mLinearLayout = (LinearLayout) findViewById(R.id.linearLayout_focus);
}
最后,在onResume()中
@Override
protected void onResume() {
super.onResume();
//do not give the editbox focus automatically when activity starts
mAutoCompleteTextView.clearFocus();
mLinearLayout.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.
<EditText
android:layout_width="match_parent"
android:layout_height="100dp"
android:id="@+id/etComments"
android:hint="Comments.."
android:textSize="14dp"
android:focusable="false"
android:textStyle="italic"/>