011/MyFirstProject

/src/main/java/com/ai/ai/aiapplication/aiapplication/aiapplication/MainApplication.java
package com.ai.ai.aiapplication.aiapplication.aiapplication;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.support.annotation.Nullable;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import com.ai.ai.aiapplication.aiapplication.aiapplication.R;

import java.util.List;

public class AiAdapter extends RecyclerView.Adapter<AiAdapter.ViewHolder> {
private Context context;
private List<String> images;
private List<String> names;
private List<Integer> type;

public AiAdapter(Context context, List<String> images, List<String> names, List<Integer> type) {
this.context = context;
this.images = images;
this.names = names;
this.type = type;
}

@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.activity_ai, parent, false);
ViewHolder holder = new ViewHolder(view);
return holder;
}

@Override
public void onBindViewHolder(ViewHolder holder, int position) {
holder.name.setText(names.get(position));
holder.type.setText(type.get(position) + "");
holder.imageView.setImageBitmap(BitmapFactory.decodeFile(images.get(position)));
}

@Override
public int getItemCount() {
return images.size();
}

public class ViewHolder extends RecyclerView.ViewHolder {
private TextView name;
private ImageView imageView;
private TextView type;

public ViewHolder(View itemView) {
super(itemView);
name = itemView.findViewById(R.id.name);
imageView = itemView.findViewById(R.id.image);
type = itemView.findViewById(R.id.type);
}
}
}

/src/main/java/com/ai/ai/aiapplication/aiapplication/aiapplication/aiapplication/aiapplication/AiApplication.java
package com.ai.ai.aiapplication.aiapplication.aiapplication.aiapplication.aiapplication;

import android.os.Bundle;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.ai.ai.aiapplication.aiapplication.aiapplication.R;

/**
* A simple {@link Fragment} subclass.
*/
public class AiFragment extends Fragment {

public AiFragment() {
// Required empty public constructor
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_ai, container, false);
}

@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
View view1 = view.findViewById(R.id.image);
View view2 = view.findViewById(R.id.type);
View view3 = view.findViewById(R.id.name);
View view4 = view.findViewById(R.id.textview);
}
}

/src/main/java/com/ai/ai/aiapplication/aiapplication/aiapplication/aiapplication/aiapplication/aiapplication/aiapplication/AiFragment.java
package com.ai.ai.aiapplication.aiapplication.aiapplication.aiapplication.aiapplication;

import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import de.hdodenhof.circleimageview.CircleImageView;

public class AiApplication extends AppCompatActivity {

private static final int REQUEST_CODE = 123;
private static final int REQUEST_CODE_GALLERY = 456;
private static final int REQUEST_CODE_CAMERA = 789;
private RecyclerView recyclerView;
private Button btnSelect;
private CircleImageView image;
private List<String> images;
private List<String> names;
private List<Integer> type;
private AiAdapter adapter;
private ImageView imageView;

private static final int REQUEST_PERMISSIONS = 0x123;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_ai_application);
recyclerView = findViewById(R.id.recyclerView);
btnSelect = findViewById(R.id.btnSelect);
image = findViewById(R.id.image);

images = new ArrayList<>();
names = new ArrayList<>();
type = new ArrayList<>();

recyclerView.setLayoutManager(new GridLayoutManager(this, 3));
imageView = findViewById(R.id.imageView);

btnSelect.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (ContextCompat.checkSelfPermission(AiApplication.this, android.Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED
&& ContextCompat.checkSelfPermission(AiApplication.this, android.Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
selectFromGallery();
} else {
ActivityCompat.requestPermissions(AiApplication.this, new String[]{android.Manifest.permission.READ_EXTERNAL_STORAGE, android.Manifest.permission.WRITE_EXTERNAL_STORAGE}, REQUEST_PERMISSIONS);
}
} else {
selectFromGallery();
}
}
});

selectFromCamera();
}

private void selectFromGallery() {
Intent intent = new