Android仿抖音評論列表

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);        //設(shè)置背景透明，才能顯示出layout中諸如圓角的布局，否則會有白色底（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);        //設(shè)置背景為透明        window.setWindowAnimations(R.style.AnimBottom);        window.setBackgroundDrawable(ContextCompat.getDrawable(getContext(), android.R.color.transparent));        //去除陰影        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());        }    }
    /**     * 根據(jù)key值獲取他的所有評論，按時間排序     */    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(), "請求失敗:"+e.getMessage(), Toast.LENGTH_SHORT).show();                    }                }
            });        } else {            Toast.makeText(App.getInstance(), "請先登錄~", Toast.LENGTH_SHORT).show();        }    }
    /**     * 添加一對一關(guān)聯(lián)，當(dāng)前用戶發(fā)布帖子     */    private void savePost() {        String content = mBinding.mTextView.getText().toString();        if (TextUtils.isEmpty(content)) {            Toast.makeText(App.getInstance(), "內(nèi)容不能為空", Toast.LENGTH_SHORT).show();            return;        }        if (BmobUser.isLogin()) {            CommentBean post = new CommentBean();            post.setContent(content);            post.setUniquekey(mUniquekey);            //添加一對一關(guān)聯(lián)，用戶關(guān)聯(lián)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(), "評論成功~", Toast.LENGTH_SHORT).show();                    } else {                        Toast.makeText(App.getInstance(), "評論失敗:" + e.getMessage(), Toast.LENGTH_SHORT).show();                    }                }            });        } else {            Toast.makeText(App.getInstance(), "請先登錄~", Toast.LENGTH_SHORT).show();        }    }
    public interface OnDisMissCallBack{        void onDismiss();    }    private OnDisMissCallBack mOnDisMissCallBack;
    public void setOnDisMissCallBack(OnDisMissCallBack mOnDisMissCallBack) {        this.mOnDisMissCallBack = mOnDisMissCallBack;    }}

<?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="發(fā)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="發(fā)個評論，說不定能火"                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>

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;        }    }}

<?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="昵稱"                    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>

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());        }    }

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);        //設(shè)置背景為透明        window.setWindowAnimations(R.style.AnimBottom);        window.setBackgroundDrawable(ContextCompat.getDrawable(getContext(), android.R.color.transparent));        //去除陰影        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(), "內(nèi)容不能為空", 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();                //獲取當(dāng)前界面可視部分                getActivity().getWindow().getDecorView().getRootView().getWindowVisibleDisplayFrame(r);                //獲取屏幕的高度                int screenHeight = getActivity().getWindow().getDecorView().getRootView().getHeight();
                //此處就是用來獲取鍵盤的高度的， 在鍵盤沒有彈出的時候 此高度為0 鍵盤彈出的時候為一個正數(shù)                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) {
            }        });        //設(shè)置已經(jīng)填過的文字，以及移動光標(biāo)        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();                    //獲取當(dāng)前界面可視部分                    getActivity().getWindow().getDecorView().getRootView().getWindowVisibleDisplayFrame(r);                    //獲取屏幕的高度                    int screenHeight = getActivity().getWindow().getDecorView().getRootView().getHeight();
                    //此處就是用來獲取鍵盤的高度的， 在鍵盤沒有彈出的時候 此高度為0 鍵盤彈出的時候為一個正數(shù)                    int heightDifference = screenHeight - r.bottom;                    if (heightDifference > mAllowableErrorHeight && mLastDiff >= 0) {                        //開軟鍵盤                    } else {                        //關(guān)閉軟鍵盤                        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();//                //獲取當(dāng)前界面可視部分//                getActivity().getWindow().getDecorView().getWindowVisibleDisplayFrame(r);//                //獲取屏幕的高度//                int screenHeight = getActivity().getWindow().getDecorView().getRootView().getHeight();////                //此處就是用來獲取鍵盤的高度的， 在鍵盤沒有彈出的時候 此高度為0 鍵盤彈出的時候為一個正數(shù)//                int heightDifference = screenHeight - r.bottom;//                if (heightDifference <= mAllowableErrorHeight && mLastDiff >= 0) {//                    //開軟鍵盤//                } else {//                    //關(guān)閉軟鍵盤//                    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;    }}

<?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="發(fā)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="發(fā)個評論，說不定能火"                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>

//解決點擊彈窗外部，隱藏dialog和軟鍵盤getDialog().setCanceledOnTouchOutside(true);

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();                //獲取當(dāng)前界面可視部分                getActivity().getWindow().getDecorView().getWindowVisibleDisplayFrame(r);                //獲取屏幕的高度                int screenHeight = getActivity().getWindow().getDecorView().getRootView().getHeight();                //此處就是用來獲取鍵盤的高度的， 在鍵盤沒有彈出的時候 此高度為0 鍵盤彈出的時候為一個正數(shù)                int heightDifference = screenHeight - r.bottom;
                if (heightDifference <= 0 && mLastDiff >= 0) {                    //開軟鍵盤                } else {                    //關(guān)閉軟鍵盤                    dismissDialog();                }                mLastDiff = heightDifference;            }        });    }

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