EditText request focus not working

问题:

I have an EditText and a Button. On click of the button i want to open the EditText keyboard and at the same time request focus on the EditText, So that the user directly start typing in the keyboard and text appears in the EditText. But in my case when i click the button it open the keyboard, but it won't set focus on the EditText, because of which user has to click the EditText again to write on it. What is the issue. Any help or suggestion.

Code On click of button

m_SearchEditText.requestFocus();
InputMethodManager inputMethodManager=(InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
inputMethodManager.toggleSoftInputFromWindow(m_SearchEditText.getApplicationWindowToken(), InputMethodManager.SHOW_FORCED, 0);

回答1:

ensure that the edittext is focusable in touch mode. You can do it two way.

In xml:

android:focusableInTouchMode="true"

in Java:

view.setFocusableInTouchMode(true);

Personally I don't trust the XML definition of this param. I always request focus by these two lines of code:

view.setFocusableInTouchMode(true);
view.requestFocus();

The keyboard shoul appear on itself without the need to call InputMethodManager.

It works in most of the cases. Once it did not work for me because I have lost the reference to the object due to quite heavy processing - ensure that this is not your issue.

回答2:

In my case it worked by adding a handler after you clicked to button and focus set in another view the focus can get back to your needed view.

just put this in your code:

final Handler handler = new Handler();
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        lastview.getEditText().clearFocus();
                        m_SearchEditText.requestFocus();
                        InputMethodManager mgr = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);


                        mgr.showSoftInput(mLastNameET, InputMethodManager.SHOW_IMPLICIT);

                    }
                }, 100);

I hope it was helpful

回答3:

In your manifest.xml write:

<activity android:name=".MainActivity"
android:label="@string/app_name"
android:windowSoftInputMode="stateAlwaysVisible" />

And call m_SearchEditText.requestfocus() in oncreate().
OR,
Try:

if(m_SearchEditText.requestFocus()) {
    getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
}

回答4:

The following works for me and should help:

EditText yourEditText= (EditText) findViewById(R.id.yourEditText);
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(yourEditText, InputMethodManager.SHOW_IMPLICIT);

回答5:

As an extension to this answer (I didn't add it as a comment because of reputation...).

If you want to reduce the delayed time to zero, use handler.post() instead. Full code:

final Handler handler = new Handler();
handler.post(new Runnable() {
    @Override
    public void run() {
        lastview.getEditText().clearFocus();
        m_SearchEditText.requestFocus();
        InputMethodManager mgr = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);


        mgr.showSoftInput(mLastNameET, InputMethodManager.SHOW_IMPLICIT);
    }
});

回答6:

U need two xml attributes also to achieve this:

android:focusable="true"
android:focusableInTouchMode="true"

Add them to the EditText as well as the parent layouts(Any layout inside which these views are). By default these are false, so the focus is not given to the requested view.

Source: https://developer.android.com/reference/android/view/View.html#attr_android:focusable

After u show the EditText based on the checkbox selection, add the next and previous focus points dynamically in code.

Hope this helps.

回答7:

Minimalist Kotlin extension version because we should pretend these sorts of obtuse calls into system services are not necessary:

fun EditText.requestKeyboardFocus() {
    val inputMethodManager = context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
    inputMethodManager.showSoftInput(this, InputMethodManager.SHOW_IMPLICIT)
}