如何强制焦点编辑文本 [英] how to force focus to edit text
问题描述
我读到各地有关如何设置对象然而，要重点问题，我似乎无法找到任何的答案，我想做的事情。
使用焦点监听我也做了以下内容：
Ehour.setOnFocusChangeListener（新OnFocusChangeListener（）{
@覆盖
公共无效onFocusChange（查看arg0中，布尔ARG1）{
// TODO自动生成方法存根
如果（！ARG1）{
如果（Ehour.getText（）长度（）＆LT; = 0）{
Toast.makeText（getApplicationContext（），否小时进入，Toast.LENGTH_LONG）.show（）;
日历nohour = Calendar.getInstance（）;
Ehour.setText（的NumberFormatter（nohour.get（Calendar.HOUR_OF_DAY）））;
Ehour.setFocusable（真正的）;
Ehour.requestFocus（）;
}
}
}}）;
我试图从后续的职位建议：
我看到这篇文章，但使用这些建议也似乎不工作： <一href="http://stackoverflow.com/questions/2150656/how-to-set-focus-on-a-view-when-a-layout-is-created-and-displayed">How要创建并显示一个布局时，在视图上设置焦点？
我的目标是当编辑文本焦点丢了，我要搬回来，如果给定项是无效的。
此外根据由比尔·莫特给出的建议，我也尝试过：
Ehour.setOnFocusChangeListener（新OnFocusChangeListener（）{
@覆盖
公共无效onFocusChange（查看arg0中，布尔ARG1）{
// TODO自动生成方法存根
如果（！ARG1）{
如果（Ehour.getText（）长度（）＆LT; = 0）{
Toast.makeText（getApplicationContext（），否小时进入，Toast.LENGTH_LONG）.show（）;
日历nohour = Calendar.getInstance（）;
Ehour.setText（的NumberFormatter（nohour.get（Calendar.HOUR_OF_DAY）））;
（（EditText上）为arg0）.requestFocus（）;
}
}
}}）;
**编辑**
：我的不是requestFocus（）之前，甚至还添加以下行 （（EditText上）为arg0）.setFocusable（真正的）;
*编辑**
这是这个职位的尝试：<一href="http://stackoverflow.com/questions/1555109/stop-edittext-from-gaining-focus-at-activity-startup">Stop从的EditText在活动启动获得焦点
以下变化： 在第一布置头的布局我说：
机器人：ID =@ + ID / enterdata
机器人：descendantFocusability =beforeDescendants
机器人：focusableInTouchMode =真
然后在OnChangeFocusListener我这样做：
Ehour.setOnFocusChangeListener（新OnFocusChangeListener（）{
@覆盖
公共无效onFocusChange（查看arg0中，布尔ARG1）{
// TODO自动生成方法存根
如果（！ARG1）{
如果（（（EditText上）为arg0）.getText（）长度（）＆LT; = 0）{
Toast.makeText（getApplicationContext（），否小时进入，Toast.LENGTH_LONG）.show（）;
日历nohour = Calendar.getInstance（）;
（（EditText上）为arg0）.setText（的NumberFormatter（nohour.get（Calendar.HOUR_OF_DAY）））;
findViewById（R.id.enterdata）.requestFocus（）;
（（EditText上）为arg0）.setFocusable（真正的）;
（（EditText上）为arg0）.setFocusableInTouchMode（真正的）;
（（EditText上）为arg0）.requestFocus（）;
}
}
}}）;
不过，我仍然得到同样的行为之前，即重点转到停留，我想重点转到容貌集中的方式，但在编辑文本，但它似乎无法使用，就好像它仍然是编辑文本等待集中。
*编辑**
：下面按计算器上的地方谁问的问题用户遇到同样的问题，因为我发现最近的文章code
Ehour.setOnFocusChangeListener（新OnFocusChangeListener（）{
@覆盖
公共无效onFocusChange（查看arg0中，布尔ARG1）{
// TODO自动生成方法存根
如果（！ARG1）{
如果（（（EditText上）为arg0）.getText（）长度（）＆LT; = 0）{
日历nohour = Calendar.getInstance（）;
（（EditText上）为arg0）.setText（的NumberFormatter（nohour.get（Calendar.HOUR_OF_DAY）））;
如果（（（EditText上）为arg0）.requestFocus（））{
。getWindow（）setSoftInputMode（WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE）;
Emin.clearFocus（）;
Toast.makeText（getApplicationContext（），否小时进入，Toast.LENGTH_LONG）.show（）;
}
}
}
}}）;
我有同样的问题，这里的code，我来解决：
的EditText EDITTEXT =（EditText上）findViewById（R.id.myTextViewId）;
editText.requestFocus（）;
InputMethodManager IMM =（InputMethodManager）getSystemService（Context.INPUT_METHOD_SERVICE）;
imm.showSoftInput（EDITTEXT，InputMethodManager.SHOW_IMPLICIT）;
最好的问候，
I read around about the questions on how to set an object to be focused however I cannot seem to find either an answer to what I am trying to do.
Using the On Focus Listener I have done the following:
Ehour.setOnFocusChangeListener(new OnFocusChangeListener() {
@Override
public void onFocusChange(View arg0, boolean arg1) {
// TODO Auto-generated method stub
if (!arg1) {
if (Ehour.getText().length()<=0) {
Toast.makeText(getApplicationContext(), "No Hour Entered", Toast.LENGTH_LONG).show();
Calendar nohour = Calendar.getInstance();
Ehour.setText(numberformatter(nohour.get(Calendar.HOUR_OF_DAY)));
Ehour.setFocusable(true);
Ehour.requestFocus();
}
}
}});
I have tried the suggestions from the follow posts:
I read this post but using these suggestions as well do not seem to work: How to set focus on a view when a layout is created and displayed?
My goal is that when the edit text focus is lost, I need to move back to it if the entry given is invalid.
Furthermore as per the suggestion given by Bill Mote I have also tried:
Ehour.setOnFocusChangeListener(new OnFocusChangeListener() {
@Override
public void onFocusChange(View arg0, boolean arg1) {
// TODO Auto-generated method stub
if (!arg1) {
if (Ehour.getText().length()<=0) {
Toast.makeText(getApplicationContext(), "No Hour Entered", Toast.LENGTH_LONG).show();
Calendar nohour = Calendar.getInstance();
Ehour.setText(numberformatter(nohour.get(Calendar.HOUR_OF_DAY)));
((EditText)arg0).requestFocus();
}
}
}});
** EDIT ** I even added the below line before the requestFocus() :
((EditText)arg0).setFocusable(true);
* EDIT **
Tried from this post : Stop EditText from gaining focus at Activity startup
The following changes : In the layout at the first layout header I added :
android:id="@+id/enterdata"
android:descendantFocusability="beforeDescendants"
android:focusableInTouchMode="true"
Then in the OnChangeFocusListener I did this:
Ehour.setOnFocusChangeListener(new OnFocusChangeListener() {
@Override
public void onFocusChange(View arg0, boolean arg1) {
// TODO Auto-generated method stub
if (!arg1) {
if (((EditText)arg0).getText().length()<=0) {
Toast.makeText(getApplicationContext(), "No Hour Entered", Toast.LENGTH_LONG).show();
Calendar nohour = Calendar.getInstance();
((EditText)arg0).setText(numberformatter(nohour.get(Calendar.HOUR_OF_DAY)));
findViewById(R.id.enterdata).requestFocus();
((EditText)arg0).setFocusable(true);
((EditText)arg0).setFocusableInTouchMode(true);
((EditText)arg0).requestFocus();
}
}
}});
However I still get the same behaviour as before, the edit text that the focus goes to stays that way but the edit text that I want the focus to go to looks focused but it cannot seem to be used as though it is still waiting to be focused.
* EDIT **
Code below as per recent post found on stackoverflow where the user who asked the question is experiencing the same problem as me:
Ehour.setOnFocusChangeListener(new OnFocusChangeListener() {
@Override
public void onFocusChange(View arg0, boolean arg1) {
// TODO Auto-generated method stub
if (!arg1) {
if (((EditText)arg0).getText().length()<=0) {
Calendar nohour = Calendar.getInstance();
((EditText)arg0).setText(numberformatter(nohour.get(Calendar.HOUR_OF_DAY)));
if (((EditText)arg0).requestFocus()) {
getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
Emin.clearFocus();
Toast.makeText(getApplicationContext(), "No Hour Entered", Toast.LENGTH_LONG).show();
}
}
}
}});
I had this same issue, here the code that I used to solve:
EditText editText = (EditText) findViewById(R.id.myTextViewId);
editText.requestFocus();
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(editText, InputMethodManager.SHOW_IMPLICIT);
Best Regards,
这篇关于如何强制焦点编辑文本的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
