我有一个 ListView ,每行都有一个 EditText。 EditText 应该收集数值,所以我尝试关闭字母键盘并允许用户只看到数字小键盘。
但是,当 ListView 被填充并且我单击列表中的任何 EditText 时,数字键盘出现 - 但随后很快被完整的 qwerty 键盘取代 - 并且用户必须切换回数字键盘以输入数字。
我已经以编程方式尝试了各种组合,如下所示:
mPercent.setInputType(InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_VARIATION_NORMAL);
以及 XML 的多种组合,例如
android:inputType="phone"
或
android:digits="0123456789"
但是,无论组合如何,它们的键盘总是快速切换回 qwerty 并关闭数字键。
我认为这可能与 TextWatcher 有关。我使用 textwatcher 来指示输入的内容。我删除它,添加该行的 edittext 中可能包含的任何文本,然后添加 textwatcher。
这是我的自定义适配器的核心:
public View getView(final int position, View inView, ViewGroup parent) {
ViewHolder holder = null;
if (inView == null) {
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
inView = inflater.inflate(mLayoutResource, null);
holder = new ViewHolder();
holder.mPercent = (EditText) inView.findViewById(R.id.percent);
holder.mMaterial = (TextView) inView.findViewById(R.id.name);
inView.setTag(holder);
} else {
holder = (ViewHolder) inView.getTag();
}
mMaterial.moveToPosition(position);
holder.mPercent.setInputType(InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_VARIATION_NORMAL);
// remove textwatcher on percentage
holder.mPercent.removeTextChangedListener(percentWatcher);
// insert the percentage for this row
final String material = mMaterial.getString(mMaterial.getColumnIndex(OptionsProvider.OPTIONS_DATA));
final EditText percent = holder.mPercent;
percent.setTag(material); // use material and position as keys into which of the many edittexts the textwatcher is watching
percent.setId(position);
holder.mMaterial.setText(material);
// persist any text the user may have typed in the comment box
if (percentages.containsKey(material)) {
percent.setText(percentages.get(material));
}
else {
percent.setText("");
}
// turn on textwatcher
percentWatcher = new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
// save this text and the position in which is resides.
// if the user scrolls before pressing send, only this position should
// contain the text
String text = percent.getText().toString().trim();
if (text.length() > 0) {
if ((position == percent.getId() &&
(material.equals( percent.getTag().toString())))) {
percentages.put(material, text);
Log.d(TAG, "Percentage inserted "+material+"="+text);
}
}
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) { }
// force the EditText to stay with 3 digits (max of 100%)
@Override
public void afterTextChanged(Editable s) {
if (s.length() > 0) {
int pct = Integer.parseInt(s.toString());
Log.d(TAG, " Material "+(String) percent.getTag()+ " = "+pct);
}
}
};
// add the textwatcher back to the edittext
holder.mPercent.addTextChangedListener(percentWatcher);
有人知道删除/添加文本观察器是否会损坏 InputType 吗?这是我应该探索的路径来弄清楚为什么键盘总是回到 qwerty 吗?
最佳答案
可能是 ListView 抢走了焦点。尝试将此添加到您的 ListView
XML
android:descendantFocusability="afterDescendants"
或者在 Java 中
listView.setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);
关于Android InputType 不受尊重,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/30200631/