В моем тестовом приложении я отключаю расширение AppBarLayout, когда оно свернуто (путем прокрутки RecycleView).Я делаю это, добавляя addOnOffsetChangedListener к AppBarLayout.Однако, когда я нажимаю EditText, он снова расширяется, но я не хочу, чтобы он расширялся.Как отключить расширение AppBarLayout, когда я нажимаю EditText?
Я поместил весь код, чтобы каждый мог скопировать / вставить код, создать новый проект и быстро протестировать.
Вот как выглядит .gif
Вот код XML:
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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:orientation="vertical">
<android.support.design.widget.AppBarLayout
android:id="@+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="400dp"
android:fitsSystemWindows="true"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleTextAppearance="@android:color/transparent"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="fitXY"
android:src="@drawable/beachcroatia"/>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v7.widget.RecyclerView
android:id="@+id/recycleView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="?attr/actionBarSize"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
<LinearLayout
android:id="@+id/messages_linear_layout"
android:layout_width="match_parent"
android:layout_height="58dp"
android:layout_gravity="bottom"
android:background="#E1F5FE"
android:orientation="horizontal"
tools:layout_editor_absoluteY="453dp">
<EditText
android:id="@+id/editText_messageBox"
android:layout_width="0dp"
android:layout_height="40dp"
android:layout_alignParentBottom="true"
android:layout_gravity="center"
android:layout_weight="0.85"
android:hint="Enter a message"/>
<ImageView
android:id="@+id/messages_sendArrow"
android:layout_width="0dp"
android:layout_height="30dp"
android:layout_gravity="center"
android:layout_weight="0.15"
android:src="@drawable/ic_send_message_" />
</LinearLayout>
</android.support.design.widget.CoordinatorLayout>
Вот полный код MainActivity:
public class MainActivity extends AppCompatActivity {
private RecyclerView mRecyclerChat;
private AdapterChat mAdapterChat;
CollapsingToolbarLayout collapsingToolbarLayout;
AppBarLayout appBarLayout;
ImageView sendMessageImageViewButton;
EditText editTextMessage;
private List<Message> messagesList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
collapsingToolbarLayout = findViewById(R.id.collapsing_toolbar);
appBarLayout = findViewById(R.id.app_bar_layout);
sendMessageImageViewButton = findViewById(R.id.messages_sendArrow);
editTextMessage = findViewById(R.id.editText_messageBox);
messagesList = new ArrayList<>();
messagesList.addAll(getMessagesList());
mRecyclerChat = findViewById(R.id.recycleView);
LinearLayoutManager manager = new LinearLayoutManager(this);
mRecyclerChat.setLayoutManager(manager);
mAdapterChat = new AdapterChat(this, messagesList);
mRecyclerChat.setAdapter(mAdapterChat);
//move to the last item in recycleview
mRecyclerChat.getLayoutManager().scrollToPosition(mAdapterChat.getMessagesObekt().size() - 1);
editTextMessage.requestFocus();
getWindow().setSoftInputMode(
WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);
appBarLayout.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() {
@Override
public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
if (Math.abs(verticalOffset) == appBarLayout.getTotalScrollRange()) {
// Collapsed
Toast.makeText(MainActivity.this, "Collapsed", Toast.LENGTH_SHORT).show();
// disable expanding
AppBarLayout.LayoutParams params = (AppBarLayout.LayoutParams) collapsingToolbarLayout.getLayoutParams();
params.setScrollFlags(0);
} else if (verticalOffset == 0) {
Toast.makeText(MainActivity.this, "Extend", Toast.LENGTH_SHORT).show();
// Expanded
} else {
// Somewhere in between
}
}
});
//sending new message and updating recycleview
sendMessageImageViewButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(MainActivity.this, "Message Send", Toast.LENGTH_SHORT).show();
mAdapterChat.updateLastMessage(new Message(editTextMessage.getText().toString()));
editTextMessage.getText().clear();
mRecyclerChat.getLayoutManager().scrollToPosition(mAdapterChat.getMessagesObekt().size() - 1);
}
});
}
//ading some items to a list
private List<Message> getMessagesList() {
List<Message> mMessages = new ArrayList<>();
for (int i = 0; i < 200; i++) {
mMessages.add(new Message("message " + i));
}
return mMessages;
}
}
Вот мой класс сообщений, в который я добавляю фиктивные данные для отображения в RecycleView
public class Message {
private String message;
public Message(String message) {
this.message = message;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
}
Вот код адаптера RecycleView:
package com.example.petar.collapsingtolbartestiramo;
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
public class AdapterChat extends RecyclerView.Adapter<AdapterChat.ChatHolder> {
private LayoutInflater mInflater;
private List<Message> messagesObekt;
public AdapterChat(Context context, List<Message> listOfMassages) {
mInflater = LayoutInflater.from(context);
messagesObekt = new ArrayList<>();
messagesObekt.addAll(listOfMassages);
notifyDataSetChanged();
}
public void updateChat(List<Message> porukeObjekt){
this.messagesObekt.addAll(porukeObjekt);
notifyDataSetChanged();
}
public void updateLastMessage(Message porukeObjekt) {
this.messagesObekt.add(porukeObjekt);
//notifyDataSetChanged();
notifyItemInserted(messagesObekt.size());
}
public List<Message> getMessagesObekt() {
return messagesObekt;
}
@Override
public ChatHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = mInflater.inflate(R.layout.list_message, parent, false);
ChatHolder holder = new ChatHolder(view, messagesObekt);
return holder;
}
@Override
public void onBindViewHolder(ChatHolder holder, int position) {
holder.textViewMessage.setText(messagesObekt.get(position).getMessage());
}
@Override
public int getItemCount() {
return messagesObekt.size();
}
public static class ChatHolder extends RecyclerView.ViewHolder {
TextView textViewMessage;
public ChatHolder(View itemView, List<Message> messagesObekt) {
super(itemView);
textViewMessage = itemView.findViewById(R.id.rv_message);
}
}
}
Вот XML-код элемента RecycleView (list_message.xml)
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="5dp"
android:orientation="vertical">
<TextView
android:id="@+id/rv_message"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Poruka Ovdje"
android:textSize="14sp"/>
</LinearLayout>
:
EDIT
Я пытался добавить фокус слушателя к EditText, но это не помогло,Вот как я стараюсь:
editTextMessage.setOnFocusChangeListener(new View.OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
if(hasFocus){
appBarLayout.setExpanded(false);
AppBarLayout.LayoutParams params = (AppBarLayout.LayoutParams) collapsingToolbarLayout.getLayoutParams();
params.setScrollFlags(0);
}
}
});