老规矩 先上效果图

1542355190753.gif

附下Demo

如果想要实现抖音一样的评论功能,就要再列表dialog上面再弹出一个dialog.

那么问题来了:当评论的dialog弹出来的时候两个dialog就会被顶起,但是我们想要的是评论列表不要被顶起

给评论列表的dialog设置此方法即可

Window win = dialog.getWindow();

WindowManager.LayoutParams params = win.getAttributes();

win.setSoftInputMode(params.SOFT_INPUT_ADJUST_NOTHING);

添加依赖 版本根据你build版本来

implementation 'com.android.support:design:27.1.1'

自定义类：ListBottomSheetDialogFragment继承BottomSheetDialogFragment

/**

* @Author： 淘跑

* @Date: 2018/7/2 15:18

* @Use：

*/

public class ListBottomSheetDialogFragment extends BottomSheetDialogFragment {

@Override

public void onCreate(@Nullable Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

//给dialog设置主题为透明背景 不然会有默认的白色背景

setStyle(DialogFragment.STYLE_NO_FRAME, R.style.CustomBottomSheetDialogTheme);

}

/**

* 如果想要点击外部消失的话 重写此方法

*

* @param savedInstanceState

* @return

*/

@Override

public Dialog onCreateDialog(Bundle savedInstanceState) {

Dialog dialog = super.onCreateDialog(savedInstanceState);

//设置点击外部可消失

dialog.setCanceledOnTouchOutside(true);

//设置使软键盘弹出的时候dialog不会被顶起

Window win = dialog.getWindow();

WindowManager.LayoutParams params = win.getAttributes();

win.setSoftInputMode(params.SOFT_INPUT_ADJUST_NOTHING);

//这里设置dialog的进出动画

win.setWindowAnimations(R.style.DialogBottomAnim);

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.fragment_item_list_dialog, container, false);

view.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,

getScreenHeight(getActivity()) / 2));

return view;

}

@Override

public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {

final RecyclerView recyclerView = (RecyclerView) view.findViewById(R.id.rv);

recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));

recyclerView.setAdapter(new ItemAdapter(100));

view.findViewById(R.id.tv).setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

//弹出评论输入框

InputDialog inputDialog = new InputDialog(getActivity());

Window window = inputDialog.getWindow();

WindowManager.LayoutParams params = window.getAttributes();

//设置软键盘通常是可见的

window.setSoftInputMode(params.SOFT_INPUT_STATE_VISIBLE);

inputDialog.show();

}

});

}

private class ItemAdapter extends RecyclerView.Adapter {

private final int mItemCount;

ItemAdapter(int itemCount) {

mItemCount = itemCount;

}

@Override

public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

return new MyViewHolder(LayoutInflater.from(parent.getContext()), parent);

}

@Override

public void onBindViewHolder(MyViewHolder holder, int position) {

holder.text.setText(String.valueOf(position));

}

@Override

public int getItemCount() {

return mItemCount;

}

public class MyViewHolder extends RecyclerView.ViewHolder {

final TextView text;

MyViewHolder(LayoutInflater inflater, ViewGroup parent) {

super(inflater.inflate(R.layout.fragment_item_list_dialog_item, parent, false));

text = (TextView) itemView.findViewById(R.id.text);

}

}

}

/**

* 得到屏幕的高

*

* @param context

* @return

*/

public static int getScreenHeight(Context context) {

WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);

int height = wm.getDefaultDisplay().getHeight();

return height;

}

}

自定义布局文件 fragment_item_list_dialog

xmlns:app="http://schemas.android.com/apk/res-auto"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:background="@drawable/shape_round_white">

android:id="@+id/rv"

android:layout_width="match_parent"

android:layout_height="match_parent">

android:id="@+id/tv"

android:layout_width="match_parent"

android:layout_height="40dp"

android:layout_gravity="center_horizontal"

android:background="#454545"

android:gravity="center"

android:text="假装这是输入框"

android:textColor="#FFFFFF"

android:textSize="25dp" />

item布局文件 fragment_item_list_dialog_item

android:layout_width="match_parent"

android:layout_height="wrap_content">

android:id="@+id/text"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:gravity="center"

android:padding="10dp"

android:textColor="@android:color/black" />

自定义样式style: CustomBottomSheetDialogTheme这里设置的是背景也是透明的

@android:color/transparent

@null

true

false

true

@android:color/transparent

false

adjustPan|stateHidden

动画

@anim/dialog_bottom_in

@anim/dialog_bottom_out

dialog_bottom_in.xml

android:duration="400"

android:fromYDelta="100%p" />

dialog_bottom_out

android:duration="400"

android:toYDelta="100%p" />

评论输入Dialog

/**

* @Author：淘跑

* @Date: 2018/11/14 17:20

* @Use：

*/

public class InputDialog extends Dialog {

public InputDialog(@NonNull Context context) {

super(context);

// super(context, R.style.CustomDialog);

init(context);

}

public Context mContext;

public View mRootView;

public void init(Context context) {

mContext = context;

mRootView = LayoutInflater.from(context).inflate(R.layout.dialog_input, null);

setContentView(mRootView);

Window window = getWindow();

WindowManager.LayoutParams params = window.getAttributes();

params.width = WindowManager.LayoutParams.MATCH_PARENT;

window.setAttributes(params);

window.setGravity(Gravity.BOTTOM);

}

}

评论输入Dialog 布局

android:layout_width="match_parent"

android:layout_height="wrap_content">

android:id="@+id/et"

android:layout_width="match_parent"

android:layout_height="80dp" />