我有一个包含片段的活动。让我们假设有一个列表片段,其中包含一系列内容。现在,我想让用户添加一个东西,所以我使用FragmentManager将列表片段替换为具有EditText的插入片段。EditText获得焦点,光标闪烁。但是软键盘打不开。反过来也是一样的:如果用户输入了新的内容并将其添加到列表中,我就用一个列表片段替换掉插入片段。但是,尽管不再有EditText,键盘却无法关闭。
实现这一点的正确方法是什么?我不敢相信我必须在所有的转换中手动显示和隐藏键盘?!
发布于 2015-05-26 03:29:57
我想做以下几件事:
扩展Fragment
classOverride onAttach()
和onDetach()
callbacksImplement显示和隐藏软件键盘方法
示例代码:
class MyFragment extends Fragment {
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
//show keyboard when any fragment of this class has been attached
showSoftwareKeyboard(true);
}
@Override
public void onDetach() {
super.onDetach();
//hide keyboard when any fragment of this class has been detached
showSoftwareKeyboard(false);
}
protected void showSoftwareKeyboard(boolean showKeyboard){
final Activity activity = getActivity();
final InputMethodManager inputManager = (InputMethodManager)activity.getSystemService(Context.INPUT_METHOD_SERVICE);
inputManager.hideSoftInputFromWindow(activity.getCurrentFocus().getWindowToken(), showKeyboard ? InputMethodManager.SHOW_FORCED : InputMethodManager.HIDE_NOT_ALWAYS);
}
}
发布于 2015-05-26 00:37:53
我的应用程序也有同样的问题,最后我们有两个选择,首先创建一个通用函数并在所有转换中调用它,或者创建一个全局转换,如下所示:
public static void RemoveAndReplaceFragment(FragmentManager fragmentManager, int FragmentContent, Fragment PlaceHolderFragment,Activity context){
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.remove(fragmentManager.findFragmentById(R.id.frgMainActivity))
.commit();
//Close keyBoard in transition
InputMethodManager inputManager = (InputMethodManager) context.getSystemService(
Context.INPUT_METHOD_SERVICE);
inputManager.hideSoftInputFromWindow(context.getCurrentFocus().getWindowToken(),
InputMethodManager.HIDE_NOT_ALWAYS);
fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.setCustomAnimations(R.anim.animation_fade_in,R.anim.animation_fade_out);
fragmentTransaction.replace(R.id.frgMainActivity, new PlaceholderFragment_MainActivity_AcceptAndFollowTask()).commit();
}
}
最好的方法是捕获过渡事件,但目前我们不能...如果我能帮你,请告诉我,祝你好运!
发布于 2015-05-22 20:18:34
这肯定会起作用:
private void hideKeyboard() {
// Check if no view has focus:
View view = this.getCurrentFocus();
if (view != null) {
InputMethodManager inputManager = (InputMethodManager) this.getSystemService(Context.INPUT_METHOD_SERVICE);
inputManager.hideSoftInputFromWindow(view.getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
}
private void showKeyboard(){
EditText myEditText = (EditText) findViewById(R.id.myEditText);
InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(myEditText.getWindowToken(), 0);
}
https://stackoverflow.com/questions/25675883
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