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Android仿抖音评论列表

Android仿抖音评论列表

作者: 坑逼的严 | 来源:发表于2021-08-12 18:37 被阅读0次
    1628820214838.gif

    BottomSheetDialogFragment是可以上下滑动退出的dialogFragment,里面就是behavior起到了作用,感兴趣的可以去了解了解,我这里记录一下写过的demo。仔细观察抖音的评论列表,它底部的请输入框其实是个Textview,点击后才弹出输入的dialog弹窗,如果不这样做,会有一个问题,就是列表往下滑的时候,底部的布局并没有跟着移动。当然,我们也能做一个recycleview的底部条目为输入框,这里我采取了点击弹出真正的对话框的方式。好,下面直接上代码。

    评论列表

    列表fragment

    public class CommendMsgDialogFragment extends BottomSheetDialogFragment {
    
    
        private RecyclerView mRecyclerView;
        private CommendAdapter mCommendAdapter;
        private FragmentCommendMsgDialogBinding mBinding;
        private String mUniquekey;
        private CommendInputDialogFragment mCommendInputDialog;
    
        public CommendMsgDialogFragment() {
            // Required empty public constructor
        }
    
        public static CommendMsgDialogFragment newInstance(String uniquekey) {
            CommendMsgDialogFragment fragment = new CommendMsgDialogFragment();
            Bundle args = new Bundle();
            args.putString("uniquekey",uniquekey);
            fragment.setArguments(args);
            return fragment;
        }
    
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            //设置背景透明,才能显示出layout中诸如圆角的布局,否则会有白色底(框)
            setStyle(BottomSheetDialogFragment.STYLE_NORMAL, R.style.CustomBottomSheetDialogTheme);
            if (getArguments() != null) {
                mUniquekey = getArguments().getString("uniquekey");
                mUniquekey = "c322b12d56a3125e73e7b2978ff846c0";
            }
        }
    
        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                 Bundle savedInstanceState) {
            // Inflate the layout for this fragment
            mBinding = DataBindingUtil.inflate(getLayoutInflater(), R.layout.fragment_commend_msg_dialog, container, false);
            return mBinding.getRoot();
        }
    
        @Override
        public void onActivityCreated(@Nullable Bundle savedInstanceState) {
            Window window = getDialog().getWindow();
            window.requestFeature(Window.FEATURE_NO_TITLE);
            super.onActivityCreated(savedInstanceState);
            //设置背景为透明
            window.setWindowAnimations(R.style.AnimBottom);
            window.setBackgroundDrawable(ContextCompat.getDrawable(getContext(), android.R.color.transparent));
            //去除阴影
            window.setGravity(Gravity.BOTTOM);
            WindowManager.LayoutParams layoutParams = window.getAttributes();
            layoutParams.width = ViewGroup.LayoutParams.MATCH_PARENT;
            layoutParams.dimAmount = 0.1f;
            window.setAttributes(layoutParams);
            getDialog().setOnDismissListener(new DialogInterface.OnDismissListener() {
                @Override
                public void onDismiss(DialogInterface dialog) {
                    if(mOnDisMissCallBack != null){
                        mOnDisMissCallBack.onDismiss();
                    }
                    dismissAllowingStateLoss();
                }
            });
        }
    
        @Override
        public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
            super.onViewCreated(view, savedInstanceState);
            mRecyclerView = mBinding.mBottomSheet;
            mRecyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
            mCommendAdapter = new CommendAdapter();
            mRecyclerView.setAdapter(mCommendAdapter);
            mBinding.mTextView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    showInputDialog();
                }
            });
            mBinding.mTvSend.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    savePost();
                }
            });
            initData();
        }
    
        private void showInputDialog() {
            if(mCommendInputDialog == null){
                mCommendInputDialog = CommendInputDialogFragment.newInstance(mUniquekey,mBinding.mTextView.getText().toString());
                mCommendInputDialog.setOnDisMissCallBack(new CommendInputDialogFragment.OnDisMissCallBack() {
                    @Override
                    public void onDismiss() {
                        mCommendInputDialog = null;
                    }
    
                    @Override
                    public void saveCommend() {
                        savePost();
                    }
    
                    @Override
                    public void onCommendTextChanged(String contend) {
                        mBinding.mTextView.setText(contend);
                    }
                });
                mCommendInputDialog.show(getChildFragmentManager(),mCommendInputDialog.getTag());
            }
        }
    
        /**
         * 根据key值获取他的所有评论,按时间排序
         */
        private void initData() {
            if (BmobUser.isLogin()) {
                BmobQuery<CommentBean> query = new BmobQuery<>();
                query.addWhereEqualTo("uniquekey", mUniquekey);
                query.order("-updatedAt");
                //包含作者信息
                query.include("user");
                query.findObjects(new FindListener<CommentBean>() {
                    @Override
                    public void done(List<CommentBean> object, BmobException e) {
                        if (e == null) {
                            mCommendAdapter.refreshList(object);
                        } else {
                            Toast.makeText(App.getInstance(), "请求失败:"+e.getMessage(), Toast.LENGTH_SHORT).show();
                        }
                    }
    
                });
            } else {
                Toast.makeText(App.getInstance(), "请先登录~", Toast.LENGTH_SHORT).show();
            }
        }
    
        /**
         * 添加一对一关联,当前用户发布帖子
         */
        private void savePost() {
            String content = mBinding.mTextView.getText().toString();
            if (TextUtils.isEmpty(content)) {
                Toast.makeText(App.getInstance(), "内容不能为空", Toast.LENGTH_SHORT).show();
                return;
            }
            if (BmobUser.isLogin()) {
                CommentBean post = new CommentBean();
                post.setContent(content);
                post.setUniquekey(mUniquekey);
                //添加一对一关联,用户关联帖子
                post.setUser(BmobUser.getCurrentUser(User.class));
                post.save(new SaveListener<String>() {
                    @Override
                    public void done(String s, BmobException e) {
                        if (e == null) {
                            Toast.makeText(App.getInstance(), "评论成功~", Toast.LENGTH_SHORT).show();
                        } else {
                            Toast.makeText(App.getInstance(), "评论失败:" + e.getMessage(), Toast.LENGTH_SHORT).show();
                        }
                    }
                });
            } else {
                Toast.makeText(App.getInstance(), "请先登录~", Toast.LENGTH_SHORT).show();
            }
        }
    
        public interface OnDisMissCallBack{
            void onDismiss();
        }
        private OnDisMissCallBack mOnDisMissCallBack;
    
        public void setOnDisMissCallBack(OnDisMissCallBack mOnDisMissCallBack) {
            this.mOnDisMissCallBack = mOnDisMissCallBack;
        }
    }
    

    这里的initData方法是数据源,我这里用的是bmbo第三方sdk,他可以把数据存到他们的数据库中,并且可以用sql代码查询,少量的数据是免费的,适合学生党来写毕业论文。
    然后是布局

    <?xml version="1.0" encoding="utf-8"?>
    <layout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:fitsSystemWindows="true">
    
        <data>
    
        </data>
    
        <androidx.constraintlayout.widget.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            tools:context=".fragments.dialogfragments.CommendMsgDialogFragment">
    
            <androidx.recyclerview.widget.RecyclerView
                android:id="@+id/mBottomSheet"
                android:layout_width="match_parent"
                android:layout_height="400dp"
                android:orientation="vertical"
                app:behavior_hideable="true"
                app:behavior_peekHeight="66dp"
                android:paddingBottom="50dp"
                app:layout_behavior="@string/bottom_sheet_behavior"
                android:background="@drawable/bg_round15_top_white"
                app:layout_constraintTop_toTopOf="parent"></androidx.recyclerview.widget.RecyclerView>
            <RelativeLayout
                android:layout_width="match_parent"
                android:layout_height="50dp"
                android:background="@drawable/storke_line_1dp_dcdcdc"
                android:layout_gravity="bottom"
                app:layout_constraintBottom_toBottomOf="parent">
    
                <TextView
                    android:id="@+id/mTvSend"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="发送"
                    android:textSize="16sp"
                    android:textColor="@color/write"
                    android:paddingTop="5dp"
                    android:paddingBottom="5dp"
                    android:paddingLeft="15dp"
                    android:paddingRight="15dp"
                    android:layout_alignParentRight="true"
                    android:layout_marginRight="15dp"
                    android:layout_centerVertical="true"
                    android:background="@drawable/send_commend_bg" />
    
                <TextView
                    android:id="@+id/mTextView"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:minHeight="35dp"
                    android:background="@drawable/et_search_bg"
                    android:layout_toLeftOf="@id/mTvSend"
                    android:layout_marginRight="15dp"
                    android:layout_centerVertical="true"
                    android:layout_marginLeft="15dp"
                    android:text=""
                    android:gravity="center_vertical"
                    android:hint="发个评论,说不定能火"
                    android:paddingTop="3dp"
                    android:paddingBottom="3dp"
                    android:maxLines="2"
                    android:paddingLeft="10dp"
                    android:paddingRight="10dp"
                    android:textColor="@color/ff333333"
                    android:textSize="14sp" />
            </RelativeLayout>
        </androidx.constraintlayout.widget.ConstraintLayout>
    </layout>
    

    adapter代码

    public class CommendAdapter extends RecyclerView.Adapter<CommendAdapter.ViewHolder> {
        private List<CommentBean> list = new ArrayList<>();
        @NonNull
        @Override
        public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
            View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.commend_item_layout, parent, false);
            CommendItemLayoutBinding bind = DataBindingUtil.bind(view);
            return new ViewHolder(bind);
        }
    
        @Override
        public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
            CommentBean commentBean = list.get(position);
            if(commentBean != null){
                if(commentBean.getUser().getAvatar() != null){
                    ImageLoader.getInstance().loadCircleImage(holder.mBinding.mIvHead.getContext(),
                            commentBean.getUser().getAvatar().getUrl(),R.mipmap.default_head_img,holder.mBinding.mIvHead);
                }
                holder.mBinding.mTvNickName.setText(commentBean.getUser().getNickname());
                holder.mBinding.mTvContent.setText(commentBean.getContent());
            }
        }
    
        @Override
        public int getItemCount() {
            return list.size();
        }
    
        public void refreshList(List<CommentBean> object) {
            this.list.clear();
            this.list.addAll(object);
            notifyDataSetChanged();
        }
    
    
        public class ViewHolder extends RecyclerView.ViewHolder {
            CommendItemLayoutBinding mBinding;
            public ViewHolder(@NonNull View itemView) {
                super(itemView);
            }
            public ViewHolder(@NonNull CommendItemLayoutBinding bind) {
                super(bind.getRoot());
                mBinding = bind;
            }
        }
    }
    
    

    然后是条目布局

    <?xml version="1.0" encoding="utf-8"?>
    <layout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto">
    
        <data>
    
        </data>
    
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:paddingLeft="10dp"
            android:paddingRight="10dp"
            android:paddingTop="10dp"
            android:orientation="vertical">
    
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal">
    
                <ImageView
                    android:id="@+id/mIvHead"
                    android:layout_width="50dp"
                    android:layout_height="50dp"
                    android:src="@mipmap/default_head_img" />
    
                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="5dp"
                    android:orientation="vertical">
    
                    <TextView
                        android:id="@+id/mTvNickName"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:text="昵称"
                        android:textColor="@color/ff333333"
                        android:textSize="18sp" />
    
                    <TextView
                        android:id="@+id/mTvContent"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:text=""
                        android:textColor="@color/ff949494"
                        android:textSize="14sp"
                        android:layout_marginTop="5dp" />
                </LinearLayout>
            </LinearLayout>
    
            <View
                android:layout_width="match_parent"
                android:layout_height="0.5dp"
                android:layout_marginTop="10dp"
                android:layout_marginBottom="10dp"
                android:background="@color/f5f5f5" />
        </LinearLayout>
    </layout>
    

    很简单的布局
    好当我们点击底部的输入框时,弹出真正的输入弹窗。

    mBinding.mTextView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    showInputDialog();
                }
            });
    
    private void showInputDialog() {
            if(mCommendInputDialog == null){
                mCommendInputDialog = CommendInputDialogFragment.newInstance(mUniquekey,mBinding.mTextView.getText().toString());
                mCommendInputDialog.setOnDisMissCallBack(new CommendInputDialogFragment.OnDisMissCallBack() {
                    @Override
                    public void onDismiss() {
                        mCommendInputDialog = null;
                    }
    
                    @Override
                    public void saveCommend() {
                        savePost();
                    }
    
                    @Override
                    public void onCommendTextChanged(String contend) {
                        mBinding.mTextView.setText(contend);
                    }
                });
                mCommendInputDialog.show(getChildFragmentManager(),mCommendInputDialog.getTag());
            }
        }
    

    接下来上输入框弹窗的代码

    输入框

    public class CommendInputDialogFragment extends DialogFragment {
    
        private FragmentCommendInputDialogBinding mBinding;
        private int mAllowableErrorHeight;
    
        public CommendInputDialogFragment() {
            // Required empty public constructor
        }
    
        private String mUniquekey;
        private String mContent;
        private int mLastDiff = 0;
        public static final String UNIQUEKEY = "uniquekey";
        public static final String CONTENT = "content";
    
        public static CommendInputDialogFragment newInstance(String uniquekey,String content) {
            CommendInputDialogFragment fragment = new CommendInputDialogFragment();
            Bundle args = new Bundle();
            args.putString(UNIQUEKEY, uniquekey);
            args.putString(CONTENT, content);
            fragment.setArguments(args);
            return fragment;
        }
    
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            if (getArguments() != null) {
                mUniquekey = getArguments().getString(UNIQUEKEY);
                mUniquekey = "c322b12d56a3125e73e7b2978ff846c0";
                mContent = getArguments().getString(CONTENT);
            }
        }
    
        @Override
        public void onActivityCreated(@Nullable Bundle savedInstanceState) {
            Window window = getDialog().getWindow();
            super.onActivityCreated(savedInstanceState);
            getDialog().setCancelable(true);
            getDialog().setCanceledOnTouchOutside(true);
            //设置背景为透明
            window.setWindowAnimations(R.style.AnimBottom);
            window.setBackgroundDrawable(ContextCompat.getDrawable(getContext(), android.R.color.transparent));
            //去除阴影
            window.setGravity(Gravity.BOTTOM);
            WindowManager.LayoutParams layoutParams = window.getAttributes();
            layoutParams.width = ViewGroup.LayoutParams.MATCH_PARENT;
            layoutParams.height = ViewGroup.LayoutParams.WRAP_CONTENT;
            layoutParams.dimAmount = 0.5f;
            window.setAttributes(layoutParams);
            window.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE|WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN);
            getDialog().setOnDismissListener(new DialogInterface.OnDismissListener() {
                @Override
                public void onDismiss(DialogInterface dialog) {
                    dismissDialog();
                }
            });
    
        }
    
        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                 Bundle savedInstanceState) {
            // Inflate the layout for this fragment
            mBinding = DataBindingUtil.bind(inflater.inflate(R.layout.fragment_commend_input_dialog, container, false));
            return mBinding.getRoot();
        }
    
        @Override
        public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
            super.onViewCreated(view, savedInstanceState);
            mBinding.mTvSend.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    String content = mBinding.mEditText.getText().toString();
                    if (TextUtils.isEmpty(content)) {
                        Toast.makeText(App.getInstance(), "内容不能为空", Toast.LENGTH_SHORT).show();
                        return;
                    }
                    if (mOnDisMissCallBack != null) {
                        mOnDisMissCallBack.saveCommend();
                    }
                    dismissDialog();
                }
            });
            mBinding.mEditText.setFocusable(true);
            mBinding.mEditText.setFocusableInTouchMode(true);
            mBinding.mEditText.requestFocus();
            mBinding.mEditText.postDelayed(new Runnable() {
                @Override
                public void run() {
                    InputMethodManager imm = (InputMethodManager) getContext()
                            .getSystemService(Context.INPUT_METHOD_SERVICE);
                    imm.toggleSoftInput(0, InputMethodManager.SHOW_FORCED);
                    Rect r = new Rect();
                    //获取当前界面可视部分
                    getActivity().getWindow().getDecorView().getRootView().getWindowVisibleDisplayFrame(r);
                    //获取屏幕的高度
                    int screenHeight = getActivity().getWindow().getDecorView().getRootView().getHeight();
    
                    //此处就是用来获取键盘的高度的, 在键盘没有弹出的时候 此高度为0 键盘弹出的时候为一个正数
                    mAllowableErrorHeight = screenHeight - r.bottom;
                    setOnKeyBordListener();
                }
            },100);
            mBinding.mEditText.addTextChangedListener(new TextWatcher() {
                @Override
                public void beforeTextChanged(CharSequence s, int start, int count, int after) {
    
                }
    
                @Override
                public void onTextChanged(CharSequence s, int start, int before, int count) {
                    String content = mBinding.mEditText.getText().toString();
                    if(mOnDisMissCallBack != null){
                        mOnDisMissCallBack.onCommendTextChanged(content);
                    }
                }
    
                @Override
                public void afterTextChanged(Editable s) {
    
                }
            });
            //设置已经填过的文字,以及移动光标
            mBinding.mEditText.setText(mContent);
            if(!TextUtils.isEmpty(mContent) && mContent.length() > 0){
                mBinding.mEditText.setSelection(mContent.length());
            }
        }
    
        private void setOnKeyBordListener() {
            getActivity().getWindow().getDecorView().addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
                @Override
                public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
                    try {
                        Rect r = new Rect();
                        //获取当前界面可视部分
                        getActivity().getWindow().getDecorView().getRootView().getWindowVisibleDisplayFrame(r);
                        //获取屏幕的高度
                        int screenHeight = getActivity().getWindow().getDecorView().getRootView().getHeight();
    
                        //此处就是用来获取键盘的高度的, 在键盘没有弹出的时候 此高度为0 键盘弹出的时候为一个正数
                        int heightDifference = screenHeight - r.bottom;
                        if (heightDifference > mAllowableErrorHeight && mLastDiff >= 0) {
                            //开软键盘
                        } else {
                            //关闭软键盘
                            dismissDialog();
                        }
                        mLastDiff = heightDifference;
                    }catch (Exception e){
                        e.printStackTrace();
                    }
                }
            });
    //        mBinding.mRoot.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
    //            @Override
    //            public void onLayoutChange(View view, int i, int i1, int i2, int i3, int i4, int i5, int i6, int i7) {
    //                Rect r = new Rect();
    //                //获取当前界面可视部分
    //                getActivity().getWindow().getDecorView().getWindowVisibleDisplayFrame(r);
    //                //获取屏幕的高度
    //                int screenHeight = getActivity().getWindow().getDecorView().getRootView().getHeight();
    //
    //                //此处就是用来获取键盘的高度的, 在键盘没有弹出的时候 此高度为0 键盘弹出的时候为一个正数
    //                int heightDifference = screenHeight - r.bottom;
    //                if (heightDifference <= mAllowableErrorHeight && mLastDiff >= 0) {
    //                    //开软键盘
    //                } else {
    //                    //关闭软键盘
    //                    dismissDialog();
    //                }
    //                Log.d("yanjin","heightDifference = "+heightDifference+" mLastDiff="+mLastDiff);
    //                mLastDiff = heightDifference;
    //            }
    //        });
        }
    
        private void dismissDialog() {
            if (mOnDisMissCallBack != null) {
                mOnDisMissCallBack.onDismiss();
            }
            dismissAllowingStateLoss();
        }
    
        @Override
        public void dismiss() {
            super.dismiss();
            mLastDiff = 0;
        }
    
        public interface OnDisMissCallBack {
            void onDismiss();
            void saveCommend();
            void onCommendTextChanged(String contend);
        }
    
        private OnDisMissCallBack mOnDisMissCallBack;
    
        public void setOnDisMissCallBack(OnDisMissCallBack mOnDisMissCallBack) {
            this.mOnDisMissCallBack = mOnDisMissCallBack;
        }
    }
    

    布局

    <?xml version="1.0" encoding="utf-8"?>
    <layout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools">
    
        <data>
    
        </data>
    
        <FrameLayout
            android:id="@+id/mRoot"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            tools:context=".adapter.CommendInputDialogFragment">
    
            <RelativeLayout
                android:id="@+id/rldlgview"
                android:layout_width="match_parent"
                android:layout_height="50dp"
                android:background="@drawable/storke_line_1dp_dcdcdc">
    
                <TextView
                    android:id="@+id/mTvSend"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="发送"
                    android:textSize="16sp"
                    android:textColor="@color/write"
                    android:paddingTop="5dp"
                    android:paddingBottom="5dp"
                    android:paddingLeft="15dp"
                    android:paddingRight="15dp"
                    android:layout_alignParentRight="true"
                    android:layout_marginRight="15dp"
                    android:layout_centerVertical="true"
                    android:background="@drawable/send_commend_bg" />
    
                <EditText
                    android:id="@+id/mEditText"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:minHeight="35dp"
                    android:background="@drawable/et_search_bg"
                    android:layout_toLeftOf="@id/mTvSend"
                    android:layout_marginRight="15dp"
                    android:layout_centerVertical="true"
                    android:layout_marginLeft="15dp"
                    android:text=""
                    android:hint="发个评论,说不定能火"
                    android:paddingTop="3dp"
                    android:paddingBottom="3dp"
                    android:maxLines="2"
                    android:gravity="center_vertical"
                    android:paddingLeft="10dp"
                    android:paddingRight="10dp"
                    android:textColor="@color/ff333333"
                    android:textSize="14sp" />
            </RelativeLayout>
    
        </FrameLayout>
    </layout>
    

    仔细观察抖音,他是点击弹窗外部,隐藏dialog和软键盘、点击物理返回键隐藏dialog、点击软键盘的收起按钮隐藏dialog。这三点很重要

    //解决点击弹窗外部,隐藏dialog和软键盘
    getDialog().setCanceledOnTouchOutside(true);
    

    而点击物理返回键隐藏dialog、点击软键盘的收起按钮隐藏dialog这两个其实都只要监听软键盘隐藏就可以了,那怎么做呢?看下面的代码。

    private void setOnKeyBordListener() {
            mBinding.rldlgview.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
                @Override
                public void onLayoutChange(View view, int i, int i1, int i2, int i3, int i4, int i5, int i6, int i7) {
                    Rect r = new Rect();
                    //获取当前界面可视部分
                    getActivity().getWindow().getDecorView().getWindowVisibleDisplayFrame(r);
                    //获取屏幕的高度
                    int screenHeight = getActivity().getWindow().getDecorView().getRootView().getHeight();
                    //此处就是用来获取键盘的高度的, 在键盘没有弹出的时候 此高度为0 键盘弹出的时候为一个正数
                    int heightDifference = screenHeight - r.bottom;
    
                    if (heightDifference <= 0 && mLastDiff >= 0) {
                        //开软键盘
                    } else {
                        //关闭软键盘
                        dismissDialog();
                    }
                    mLastDiff = heightDifference;
                }
            });
        }
    

    好,写完收工。
    哦,对了怎么调起弹窗呢?看如下代码即可:

    if(mCommendMsgDialogFragment == null){
                    mCommendMsgDialogFragment = CommendMsgDialogFragment.newInstance(uniquekey);
                    mCommendMsgDialogFragment.setOnDisMissCallBack(new CommendMsgDialogFragment.OnDisMissCallBack() {
                        @Override
                        public void onDismiss() {
                            mCommendMsgDialogFragment = null;
                        }
                    });
                    mCommendMsgDialogFragment.show(getSupportFragmentManager(), mCommendMsgDialogFragment.getTag());
                }
    
    

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