ViewPager显示多张图片和滑动删除

ViewPager显示多张图片

XML

Activity

public class MainActivity extends AppCompatActivity {private ViewPager vpId;private List data=new ArrayList<>();private LinearLayout lin;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);vpId = (ViewPager) findViewById(R.id.vp_id);lin = (LinearLayout) findViewById(R.id.lin);int[] images = new int[]{R.drawable.t1,R.drawable.t2,R.drawable.t3,R.drawable.t4,R.drawable.t5,R.drawable.t6};for (int i = 0; i < images.length; i++) {ImageView imageView = new ImageView(this);imageView.setImageResource(images[i]);data.add(imageView);}vpId.setAdapter(new PagerAdapter() {@Overridepublic int getCount() {return data.size();}@Overridepublic boolean isViewFromObject(@NonNull View view, @NonNull Object o) {return view==o;}@NonNull@Override//产生一个新视图public Object instantiateItem(@NonNull ViewGroup container, int position) {container.addView(data.get(position));//添加return data.get(position);//返回添加成功的控件}@Override//移除一张图片public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {container.removeView(data.get(position));//移除}});vpId.setOffscreenPageLimit(3);vpId.setPageMargin(10);lin.setOnTouchListener(new View.OnTouchListener() {@Overridepublic boolean onTouch(View v, MotionEvent event) {return vpId.dispatchTouchEvent(event);}});}
}

滑动删除

添加依赖

implementation “com.daimajia.swipelayout:library:1.2.0@aar”
implementation ‘com.android.support:recyclerview-v7:28.0.0’

XML

MainActivity

public class Main2Activity extends AppCompatActivity {private static final String TAG = "Main2Activity";private RecyclerView rvId;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main2);rvId = (RecyclerView) findViewById(R.id.rv_id);List data=new ArrayList<>();for (int i = 0; i < 30; i++) {data.add("哒哒哒"+i);}LinearLayoutManager manager = new LinearLayoutManager(this);rvId.setLayoutManager(manager);RVAdapter adapter = new RVAdapter(data, this);rvId.setAdapter(adapter);}
}

Swip.xml

适配器

public class RVAdapter extends RecyclerSwipeAdapter {private List strings;private Context mContext;public RVAdapter(List strings, Context context) {this.strings = strings;mContext = context;}@Overridepublic MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {return new MyViewHolder(LayoutInflater.from(mContext).inflate(R.layout.swip_layout,null));}@Overridepublic void onBindViewHolder(MyViewHolder viewHolder, final int position) {viewHolder.mSwipeLayout.setShowMode(SwipeLayout.ShowMode.LayDown);//设置滑动模式viewHolder.textView.setText(strings.get(position));viewHolder.mButton.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {//删除数据strings.remove(position);//删除动画notifyItemRemoved(position);//刷新适配器notifyDataSetChanged();}});}@Overridepublic int getItemCount() {return strings.size();}@Overridepublic int getSwipeLayoutResourceId(int position) {return position;}class MyViewHolder extends RecyclerView.ViewHolder{private SwipeLayout mSwipeLayout;private Button mButton;private TextView textView;public MyViewHolder(@NonNull View itemView) {super(itemView);mSwipeLayout=itemView.findViewById(R.id.swip_id);mButton=itemView.findViewById(R.id.delete);textView=itemView.findViewById(R.id.text_content);}}
}