从另一个 activity 刷新 SwipeRefreshLayout

Question

Activity "SubmitListActivity" 包含需要从 "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>

SubmitlistActivity.java

 // this works!
 submitListRefreshLayout = (SwipeRefreshLayout)findViewById(R.id.swipeContainerSubmitList);
 submitListRefreshLayout.setRefreshing(true);

SettingActivity.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);

抛出的错误：

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: 是否可以在SettingsActivity中刷新swipeRefreshLayout?

Q2：按下后退按钮时，SubmitListActivity 再次滑入 -> 有没有一种方法可以放在 SubmitListActivity 中以抓住这个并把逻辑抛在脑后？

Answer 1

Refresh SwipeRefreshLayout from another activity

在另一个 Activity 中调用一个 activity 的方法根本不是一个好的做法。对于您的问题，请遵循以下解决方案。

在您的 onRestartActivity() 方法中调用您的提交列表Activity 中的 submitListRefreshLayout.setRefreshing(true);，如下所示....

 @Override
    protected void onRestart() {
        super.onRestart();
        submitListRefreshLayout.setRefreshing(true);
    }

注意：- 每当您从 settingActivity 返回到 SubmitlistActivity 时，都会调用 onRestart()。

从另一个 activity 刷新 SwipeRefreshLayout

Refresh SwipeRefreshLayout from another activity

java

android

swiperefreshlayout