我在Android中遇到这个奇怪的问题。当我使用以下代码创建弹出窗口时,TextInputLayout中的TextInputEditText消失。此弹出式窗口是在扩展AppCompatActivity的正常初始为空的活动中创建的。
private void createPopupWindow() {
// inflate the layout of the popup window
LayoutInflater inflater = (LayoutInflater)
getSystemService(LAYOUT_INFLATER_SERVICE);
View popupView = inflater.inflate(R.layout.popup_window_two, null);
// create the popup window
int width = LinearLayout.LayoutParams.WRAP_CONTENT;
int height = LinearLayout.LayoutParams.WRAP_CONTENT;
boolean focusable = false; // lets taps outside the popup also dismiss it
popupWindow = new PopupWindow(popupView, width, height, focusable);
popupWindow.showAtLocation(popupView, Gravity.CENTER, 0, 0);
createOkButton();
}
这是XML:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.TextInputLayout
android:id="@+id/inputGroupNameLayout"
android:layout_width="368dp"
android:layout_height="63dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:background="@color/tan"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.055">
<android.support.design.widget.TextInputEditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Enter Group Name" />
</android.support.design.widget.TextInputLayout>
</android.support.constraint.ConstraintLayout>
TextInputEditText中的提示会显示一秒钟,但不会一直停留,并且用户无法输入文本。
为什么会这样?
答案 0 :(得分:1)
键盘没有显示,因为您将focusable
的{{1}}参数作为PopupWindow
传递了。如果想显示它,则需要通过false
。
您看到的带有true
提示的行为是由于输入自动需要窗口焦点引起的。为了避免这种情况,请添加:
TextInputEditText
致android:focusableInTouchMode="true"
的根元素android.support.constraint.ConstraintLayout
。