When the soft keyboard appears, it makes my EditText field lose focus

I've got a few EditText fields in a ListView. When I tap on one of the EditText fields, the keyboard slides into view (as it should), but the EditText field I tapped loses focus. I've tried using various InputMethodManager methods to make the keyboard start out in view (in order to get around the problem rather than truly solve it), but that didn't work - the keyboard was not in view when the Activity appeared.

The EditText's type is number , and when the keyboard is sliding in, it is a number keyboard, but when it finishes sliding and the EditText loses focus, it changes to the alphabetical keyboard (which reinforces the idea that the EditText no longer has focus).

My questions are these:

1) How can I make the selection of my EditText field and the subsequent sliding in of the soft keyboard not make my EditText lose focus?

... failing that...

2) How can I make the keyboard start out in view so it never has to slide in (thus avoiding the behavior I find so objectionable)?

My manifest does include android:windowSoftInputMode="stateAlwaysVisible" , but the keyboard does not appear until I tap on an EditText. This ignoring of the 'stateAlwaysVisible' attribute seems to only occur in the emulator - on my provisioned device, it is honored so question number 2 above does work on the device... but not in the emulator.

Thanks for any help you can provide!


Here is how I did it. The onFocusChangeListener() is called several times when you touch a EditText to type text into it. The sequence is:

  • If focus was on a different view, then that view loses focus
  • The target gains focus
  • Soft keyboard pops up.
  • This causes the target to lose focus
  • The code detects this situation and calls target.requestFocus()
  • The leftmost, topmost view gains focus, due to Android nonsense
  • The leftmost view loses focus, due to requestFocus being called
  • Target finally gains focus

    //////////////////////////////////////////////////////////////////
    private final int minDelta = 300;           // threshold in ms
    private long focusTime = 0;                 // time of last touch
    private View focusTarget = null;
    
    View.OnFocusChangeListener onFocusChangeListener = new View.OnFocusChangeListener() {
        @Override
        public void onFocusChange(View view, boolean hasFocus) {
            long t = System.currentTimeMillis();
            long delta = t - focusTime;
            if (hasFocus) {     // gained focus
                if (delta > minDelta) {
                    focusTime = t;
                    focusTarget = view;
                }
            }
            else {              // lost focus
                if (delta <= minDelta  &&  view == focusTarget) {
                    focusTarget.post(new Runnable() {   // reset focus to target
                        public void run() {
                            focusTarget.requestFocus();
                        }
                    });
                }
            }
        }
    };
    
  • The code above works well for the keyboard pop-ups. However, it does not detect the speech-to-text pop-up.


    You need to change in your AndroidManifest.xml

    Add android:windowSoftInputMode="adjustPan" in the activity holding the listview. This will solve your problem.

        <activity android:name=".MyEditTextInListView"
                  android:label="@string/app_name"
                  android:windowSoftInputMode="adjustPan">
    

    Regards


    In my case, this is happening because when the ListView resizes, it re-creates all of the list items (ie it calls getView() again for each visible list item).

    Because the EditText is within the layout that I'm returning from getView(), this means that it's a different instance of EditText than the one which had the focus previously. A secondary consequence is that when the soft-keyboard appears or disappears I found that I was losing the contents of the EditText.

    Because I wanted my view to remain fully accessible (ie I want it to be resized instead of hidden behind the keyboard window with some parts not accessible), I couldn't use Frank's answer, which otherwise seems like the best approach.

    I solved this by using an OnFocusChangeListener on the EditText to record the timestamp when the focus was lost, and then in getView() when recreating the list item, if the current time is within some threshold from when the focus was lost, call requestFocus() to give it back to the EditText in question.

    You can also grab the text from the previous instance of the EditText at that point and transfer it to the new instance.

    private class MyAdapter<Type> extends ArrayAdapter<String>
        implements OnFocusChangeListener
    {
        private EditText mText;
        private long mTextLostFocusTimestamp;
        private LayoutInflater mLayoutInflater;
    
        public MyAdapter(Context context, int resource, int textResourceId, ArrayList<String> data, LayoutInflater li) {
            super(context, resource, textResourceId, data);
            mLayoutInflater = li;
            mTextLostFocusTimestamp = -1;
        }
    
        private void reclaimFocus(View v, long timestamp) {
            if (timestamp == -1)
                return;
            if ((System.currentTimeMillis() - timestamp) < 250)
                v.requestFocus();
        }
    
        @Override public View getView (int position, View convertView, ViewGroup parent)
        {
            View v = mLayoutInflater.inflate(R.layout.mylayout, parent, false);
    
            EditText newText = (EditText) v.findViewById(R.id.email);
            if (mText != null)
                newText.setText(mText.getText());
            mText = newText;
            mText.setOnFocusChangeListener(this);
            reclaimFocus(mText, mTextLostFocusTimestamp);
    
            return v;
        }
    
        @Override public void onFocusChange(View v, boolean hasFocus) {
            if ((v == mText) && !hasFocus)
                mTextLostFocusTimestamp = System.currentTimeMillis();
        }
    }
    
    链接地址: http://www.djcxy.com/p/24218.html

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