活动“SubmitListActivity”包含需要在“SettingsActivity”中刷新的SwipeRefreshLayout。
activity_submitlist.xml
<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:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".SubmitlistActivity">
<android.support.v4.widget.SwipeRefreshLayout
android:id="@+id/swipeContainerSubmitList"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v7.widget.RecyclerView
android:id="@+id/submitList"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.v4.widget.SwipeRefreshLayout>
submit list activity.Java
// this works!
submitListRefreshLayout = (SwipeRefreshLayout)findViewById(R.id.swipeContainerSubmitList);
submitListRefreshLayout.setRefreshing(true);
setting activity.Java
// This throws an error
LayoutInflater inflator = LayoutInflater.from(getApplicationContext());
View layout = inflator.inflate(R.layout.activity_submitlist, null);
SwipeRefreshLayout submitList = layout.findViewById(R.id.swipeContainerSubmitList);
submitList.setRefreshing(true);
抛出错误:
android.view.InflateException: Binary XML file line #10: Binary XML file line #10: Error inflating class <unknown>
Caused by: android.view.InflateException: Binary XML file line #10: Error inflating class <unknown>
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.newInstance0(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:430)
at android.view.LayoutInflater.createView(LayoutInflater.java:645)
Q1:是否可以刷新SettingsActivity中的swipeRefreshLayout?
Q2:当按下后退按钮时,SubmitListActivity再次滑入 - >是否有一个方法可以放在SubmitListActivity中来捕获它并将逻辑放在后面?
从另一个活动刷新SwipeRefreshLayout
在另一个Activity中调用一个活动的方法根本不是一个好习惯。对于您的问题,请按照以下解决
在你的submitListRefreshLayout.setRefreshing(true);
方法中的SubmitlistActivity中调用onRestartActivity()
,如下所示....
@Override
protected void onRestart() {
super.onRestart();
submitListRefreshLayout.setRefreshing(true);
}
注意: - 每当你从settingActivity
回到SubmitlistActivity
onRestart()时都会打电话。