app直播源代码，高仿软件评论底部弹出框

app直播源代码，高仿软件评论底部弹出框

这个弹窗的效果是使用BottomSheetDialogFragment做的，第一个弹出的对话框为CommentListDialogFragment ，第二个弹出的对话框为SendCommentDialogFragment，代码如下：

展示 CommentListDialogFragment。

 
public class CommentListDialogFragment extends BottomSheetDialogFragment {
    private Dialog dialog;
 
    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setStyle(DialogFragment.STYLE_NO_FRAME, R.style.DialogTheme);//给dialog设置主题为透明背景 不然会有默认的白色背景
    }
 
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        dialog = super.onCreateDialog(savedInstanceState);
        dialog.setCanceledOnTouchOutside(true);//设置点击外部可消失
        Window win = dialog.getWindow();
        WindowManager.LayoutParams params = win.getAttributes();
        win.setSoftInputMode(params.SOFT_INPUT_ADJUST_NOTHING);//设置使软键盘弹出的时候dialog不会被顶起
        win.setWindowAnimations(R.style.Anim_Dialog_Bottom);//这里设置dialog的进出动画
        return dialog;
    }
 
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        // 在这里将view的高度设置为精确高度，即可屏蔽向上滑动不占全屏的手势。如果不设置高度的话 会默认向上滑动时dialog覆盖全屏
        View view = inflater.inflate(R.layout.list_dialog, container, false);
        view.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
                getScreenHeight(getActivity()) * 2 / 3));
        return view;
    }
 
    @Override
    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
        TextView postCommentText = view.findViewById(R.id.tv);
        RecyclerView recyclerView = view.findViewById(R.id.rv);
        recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
        ItemAdapter itemAdapter = new ItemAdapter();
        recyclerView.setAdapter(itemAdapter);
        postCommentText.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //写评论的弹出框
                SendCommentDialogFragment dialogFragment = new SendCommentDialogFragment();
                dialogFragment.show(getFragmentManager(),dialogFragment.getClass().getName());
            }
        });
 
    }
 
    /**
     * 得到屏幕的高
     */
    public static int getScreenHeight(Context context) {
        WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
        int height = wm.getDefaultDisplay().getHeight();
        return height;
    }
 
    @Override
    public void onStart() {
        super.onStart();
        final View view = getView();
        view.post(new Runnable() {
            @Override
            public void run() {
                View parent = (View) view.getParent();
                CoordinatorLayout.LayoutParams params = (CoordinatorLayout.LayoutParams) (parent).getLayoutParams();
                CoordinatorLayout.Behavior behavior = params.getBehavior();
                BottomSheetBehavior mBottomSheetBehavior = (BottomSheetBehavior) behavior;
                mBottomSheetBehavior.setHideable(false);//禁止下拉取消弹框
                mBottomSheetBehavior.setPeekHeight(view.getMeasuredHeight());//让dialog的内容显示完整
            }
        });
    } 

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