<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <!--  標(biāo)題View -->
    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="?actionBarSize">

    </androidx.constraintlayout.widget.ConstraintLayout>

    <!--  聊天展示View   android:layout_weight="1" 讓聊天內(nèi)容填充剩下內(nèi)容-->
    <com.scwang.smart.refresh.layout.SmartRefreshLayout
        android:id="@+id/smartRefreshLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        app:srlEnableLoadMore="false"
        app:srlEnableRefresh="true">

 <!--  添加FrameLayout 是為了讓鍵盤彈起時候，聊天內(nèi)容（RecyclerView）平移上去效果-->
        <FrameLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <androidx.recyclerview.widget.RecyclerView
                android:id="@+id/recyler"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_gravity="bottom"
                android:overScrollMode="never"
                android:scrollbars="none"
                android:visibility="invisible" />

        </FrameLayout>


    </com.scwang.smart.refresh.layout.SmartRefreshLayout>

    <!-- 按鈕：發(fā)送、輸入框等View -->
    <LinearLayout
        android:id="@+id/button_input"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">


    </LinearLayout>

    <!-- 圖片選擇、語音、視頻等View -->
    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/other_select"
        android:layout_width="match_parent"
        android:layout_height="@dimen/common_dp_114"
        android:visibility="gone">

    </androidx.constraintlayout.widget.ConstraintLayout>

    <!-- emotion 表情選擇View  這個是自定義View-->
    <EmotionView
        android:id="@+id/emotion"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:visibility="gone" />

</LinearLayout>

 private void viewLockHeight(int height) {
        LinearLayout.LayoutParams layoutParams = (LinearLayout.LayoutParams) smartRefreshLayout.getLayoutParams();
        layoutParams.height = height == 0 ? smartRefreshLayout.getHeight() : height;
        layoutParams.weight = 0.0F;
        smartRefreshLayout.setLayoutParams(layoutParams);
    }

 private void viewReleaseLockHeight(int delayMillis) {
        if (smartRefreshLayout != null) {
            smartRefreshLayout.postDelayed(new Runnable() {
                @Override
                public void run() {
                    if (smartRefreshLayout != null) {
                        LinearLayout.LayoutParams layoutParams = (LinearLayout.LayoutParams) smartRefreshLayout.getLayoutParams();
                        layoutParams.height = LinearLayout.LayoutParams.MATCH_PARENT;
                        layoutParams.weight = 1.0F;
                        smartRefreshLayout.setLayoutParams(layoutParams);
                    }
                }
            }, delayMillis == 0 ? 200L : delayMillis);
        }
    }

  public void recyclerStopScroll() {
        recyclerView.stopScroll();
        layoutManager.scrollToPositionWithOffset(0, 0);
    }