BottomSheetDialog的简易使用_com.google.android.material.bottomsheet.bottomshee

工作日志记录，最近工作上有一个设计效果类似于BottomSheetDialog的效果，这里做了一个demo，记录下实现的效果和代码，方便以后可以参照一下：

注意：使用这个BottomSheetDialog时候要映入对应得MaterialDesign包，我这里是androidx版本所有使用  

compile 'com.google.android.material:material:1.0.0'，如果是appconpact包编译，可以使用as上的refactor->Migrate to Appcompact来转成appcompact兼容。

实现效果如下：

MainActivity.java代码如下（具体实现）：

package com.xuganwen.testdrag;
 
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.GridLayoutManager;
import androidx.recyclerview.widget.ItemTouchHelper;
import androidx.recyclerview.widget.RecyclerView;
 
import android.os.Bundle;
import android.util.Log;
import android.view.View;
 
import com.chad.library.adapter.base.callback.ItemDragAndSwipeCallback;
import com.chad.library.adapter.base.listener.OnItemDragListener;
import com.google.android.material.bottomsheet.BottomSheetBehavior;
import com.google.android.material.bottomsheet.BottomSheetDialog;
 
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
 
public class MainActivity extends AppCompatActivity {
 
    private RecyclerView recycleview;
    //    private MyAdapter myAdapter;
    private MyAdapter myAdapter;
    private SimpleCycleProgressView progressview;
 
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        recycleview = findViewById(R.id.recycleview);
        final List<String> list = new ArrayList<>();
 
        for (int i = 0; i < 60; i++) {
 
            list.add(i + "hehe");
        }
 
        //第一种方式使用  com.github.CymChad:BaseRecyclerViewAdapterHelper:2.9.30库提供的adapter的扩展方法来实现，实际上也是在第二种方式的基础上再做简易封装
        myAdapter = new MyAdapter(R.layout.item,list);
        recycleview.setLayoutManager(new GridLayoutManager(this, 4));
        recycleview.setAdapter(myAdapter);
 
        ItemDragAndSwipeCallback itemDragAndSwipeCallback = new ItemDragAndSwipeCallback(myAdapter);
        ItemTouchHelper itemTouchHelper = new ItemTouchHelper(itemDragAndSwipeCallback);
        itemTouchHelper.attachToRecyclerView(recycleview);
 
        myAdapter.enableDragItem(itemTouchHelper, R.id.tv, true);
        OnItemDragListener onItemDragListener = new OnItemDragListener() {
            @Override
            public void onItemDragStart(RecyclerView.ViewHolder viewHolder, int pos){}
            @Override
            public void onItemDragMoving(RecyclerView.ViewHolder source, int from, RecyclerView.ViewHolder target, int to) {}
            @Override
            public void onItemDragEnd(RecyclerView.ViewHolder viewHolder, int pos) {
                Log.i("xuganwenlog", list.toString());
            }
        };
 
        myAdapter.setOnItemDragListener(onItemDragListener);
 
 
        final BottomSheetDialog dialog = new BottomSheetDialog(this);
 
        View view = View.inflate(this, R.layout.bottom_sheet_layout, null);
        dialog.setContentView(view);
        RecyclerView recycleview = view.findViewById(R.id.recycleview);
        recycleview.setLayoutManager(new GridLayoutManager(this, 4));
        recycleview.setAdapter(myAdapter);
 
        final BottomSheetBehavior<View> mDialogBehavior = BottomSheetBehavior.from((View) view.getParent());
 
        mDialogBehavior.setPeekHeight(getResources().getDisplayMetrics().heightPixels/3);
        mDialogBehavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
            @Override
            public void onStateChanged(@NonNull View bottomSheet, int newState) {
                if (newState == BottomSheetBehavior.STATE_HIDDEN) {
                    dialog.dismiss();
                    mDialogBehavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
                }
            }
 
            @Override
            public void onSlide(@NonNull View bottomSheet, float slideOffset) {
            }
        });
 
        dialog.show();
 
 
        findViewById(R.id.btn).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                dialog.show();
            }
        });
    }
 
}

简单实例，这里不再赘述。