本文实例为大家分享了Android实现图片九宫格的具体代码，供大家参考，具体内容如下
九宫格分三类
实现的效果
具体实现
activity_main
item_main
实体类
public class Img {
public Integer img1;
public Integer img2;
public Integer img3;
public Integer img4;
public Integer img5;
public Integer img6;
public Integer img7;
public Integer img8;
public Integer img9;
public Img(Integer img1, Integer img2, Integer img3, Integer img4, Integer img5, Integer img6, Integer img7, Integer img8, Integer img9) {
this.img1 = img1;
this.img2 = img2;
this.img3 = img3;
this.img4 = img4;
this.img5 = img5;
this.img6 = img6;
this.img7 = img7;
this.img8 = img8;
this.img9 = img9;
}
public int count(){
int i=0;
if (img1!=null)i++;
if (img2!=null)i++;
if (img3!=null)i++;
if (img4!=null)i++;
if (img5!=null)i++;
if (img6!=null)i++;
if (img7!=null)i++;
if (img8!=null)i++;
if (img9!=null)i++;
return i;
}
public boolean isOne(){
return count()==1;
}
public boolean isTwoOrFour(){
return count()==2||count()==4;
}
public boolean isFour(){
return count()==4;
}
public boolean isOther(){
if (count()!=1){
if (count()!=2){
return count() != 4;
}
}
return false;
}
}
图片适配器
public class ImgAdapter {
@BindingAdapter("localImg")
public static void set(ImageView imageView,Integer res){
if (res==null){
imageView.setVisibility(View.GONE);
return;
}
imageView.setImageResource(res);
}
}
列表适配器
public class MyAdapter extends RecyclerView.Adapter{ private final Context context; public List imgs; public MyAdapter(Context context,List
imgs) { this.context = context; this.imgs=imgs; } @NonNull @Override public Holder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) { ItemImgBinding binding = ItemImgBinding.inflate( LayoutInflater.from(context), parent, false); return new Holder(binding); } @Override public void onBindViewHolder(@NonNull Holder holder, int position) { Img img = imgs.get(position); holder.binding.setImg(img); holder.binding.executePendingBindings(); } @Override public int getItemViewType(int position) { return position; } @Override public int getItemCount() { return imgs.size(); } public class Holder extends RecyclerView.ViewHolder { ItemImgBinding binding; public Holder(ItemImgBinding binding) { super(binding.getRoot()); this.binding=binding; } } }
MainActivity
public class MainActivity extends AppCompatActivity {
ActivityMainBinding binding;
MyAdapter myAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
binding = ActivityMainBinding.inflate(getLayoutInflater());
setContentView(binding.getRoot());
List![]()
imgs = Arrays.asList(
new Img(R.drawable.avatar_1, null, null, null, null, null, null, null, null),
new Img(R.drawable.avatar_1, R.drawable.avatar_2, null, null, null, null, null, null, null),
new Img(R.drawable.avatar_1, R.drawable.avatar_2, R.drawable.avatar_3, null, null, null, null, null, null),
new Img(R.drawable.avatar_1, R.drawable.avatar_2, R.drawable.avatar_3, R.drawable.avatar_4, null, null, null, null, null),
new Img(R.drawable.avatar_1, R.drawable.avatar_2, R.drawable.avatar_3, R.drawable.avatar_4, R.drawable.avatar_5, null, null, null, null),
new Img(R.drawable.avatar_1, R.drawable.avatar_2, R.drawable.avatar_3, R.drawable.avatar_4, R.drawable.avatar_5, R.drawable.avatar_6, null, null, null),
new Img(R.drawable.avatar_1, R.drawable.avatar_2, R.drawable.avatar_3, R.drawable.avatar_4, R.drawable.avatar_5, R.drawable.avatar_6, R.drawable.avatar_7, null, null),
new Img(R.drawable.avatar_1, R.drawable.avatar_2, R.drawable.avatar_3, R.drawable.avatar_4, R.drawable.avatar_5, R.drawable.avatar_6, R.drawable.avatar_7, R.drawable.avatar_8, null),
new Img(R.drawable.avatar_1, R.drawable.avatar_2, R.drawable.avatar_3, R.drawable.avatar_4, R.drawable.avatar_5, R.drawable.avatar_6, R.drawable.avatar_7, R.drawable.avatar_8, R.drawable.avatar_9)
);
myAdapter=new MyAdapter(this,imgs);
binding.recyclerView.setLayoutManager(new LinearLayoutManager(this));
binding.recyclerView.addItemDecoration(new DividerItemDecoration(this,DividerItemDecoration.VERTICAL));
binding.recyclerView.setAdapter(myAdapter);
}
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。