我有2个活动:主要和评论。 Main Activity具有带有所有listItems的RecyclerView。每个listItem都有按钮->点赞,评论,共享和删除。
评论活动是当我单击Main Activity RecyclerView listItem上的评论按钮时打开的另一个活动。发表评论后,当我单击“后退”按钮时,它返回到“主活动”,但所有按钮均不起作用。它们的行为就像冻结了一样,不再可单击。
主要活动- enter image description here
评论活动- enter image description here
代码-主要活动(一切正常,除了我回到主要活动时,所有按钮似乎都无法在回收视图中使用
// Attach a ChildEventListener : connecting datasource to Listview UI
mMessagesDatabaseReference.addChildEventListener(new ChildEventListener() {
@Override
public void onChildAdded(DataSnapshot dataSnapshot, String s) {
// Get the value from the DataSnapshot and add it to the item list
post itemObject = dataSnapshot.getValue(post.class);
//this is where data from database is entered into a list of objects
postAdapterObject.add(itemObject);
progressBar.setVisibility(View.GONE);
}
@Override
public void onChildChanged(DataSnapshot dataSnapshot, String s) {
post itemObject = dataSnapshot.getValue(post.class);
postAdapterObject.add(itemObject);
progressBar.setVisibility(View.GONE);
}
@Override
public void onChildRemoved(DataSnapshot dataSnapshot) {
// post itemObject = dataSnapshot.getValue(post.class);
//postAdapterObject.add(itemObject);
}
@Override
public void onChildMoved(DataSnapshot dataSnapshot, String s) {
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
我的listItem填充器布局的XML代码-
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/listItemColor"
android:orientation="vertical">
// code of other layout items here
<!--Layout for like comment and buttons starts -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="@+id/like"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#FFFFFF"
android:focusable="false"
android:focusableInTouchMode="false"
android:text="Like"
android:textAllCaps="true"
android:textColor="@color/common_google_signin_btn_text_light_default"
android:textSize="14dp" />
<Button
android:id="@+id/comment"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#FFFFFF"
android:focusable="false"
android:focusableInTouchMode="false"
android:text="Comment"
android:textAllCaps="true"
android:textColor="@color/common_google_signin_btn_text_light_default"
android:textSize="14dp" />
<Button
android:id="@+id/share"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#FFFFFF"
android:focusable="false"
android:focusableInTouchMode="false"
android:text="Share"
android:textAllCaps="true"
android:textColor="@color/common_google_signin_btn_text_light_default"
android:textSize="14dp" />
<Button
android:id="@+id/delete"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#FFFFFF"
android:focusable="false"
android:focusableInTouchMode="false"
android:text="Delete"
android:textAllCaps="true"
android:textColor="@color/common_google_signin_btn_text_light_default"
android:textSize="14dp" />
</LinearLayout>
//rest of the code
主要活动的XML代码-
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:background="@color/colorBackground"
android:descendantFocusability="beforeDescendants"
android:focusableInTouchMode="true"
tools:context=".MainActivity">
// other code
<ListView
android:id="@+id/listViewLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:layout_marginTop="10dp"
android:layout_below="@id/filter"
android:layout_above="@id/buttonBar"
android:dividerHeight="10dp"
android:divider="@android:color/transparent"
android:layout_marginBottom="10dp" />
// other code
请告诉我,我要去哪里了