记事本添加插入照片功能，连接小型数据库

package utils; import android.Manifest; import android.content.Intent; import android.content.pm.PackageManager; import android.net.Uri; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.EditText; import android.widget.ImageView; import android.widget.TextView; import android.widget.Toast; import androidx.appcompat.app.AppCompatActivity; import androidx.core.app.ActivityCompat; import androidx.core.content.ContextCompat; import java.io.File; import cn.itcast.mynotepad.R; import cn.itcast.mynotepad.database.DBHelper; import cn.itcast.mynotepad.database.DBUtils; public class AddorUpdateActivity extends AppCompatActivity { private EditText etContent; private TextView tvTitle; private TextView tvDate; private ImageView imageView; private int id; private File phoneFIle; Uri uri; public static final int CHOOSE_PHOTE=2; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_add_update); etContent=findViewById(R.id.etContent); imageView=findViewById(R.id.img); Intent intent=getIntent(); id=intent.getIntExtra("id",0); if(id>0) { tvTitle = findViewById(R.id.tvTitle); tvTitle.setText("修改记录"); tvDate = findViewById(R.id.tvShowDate); tvDate.setVisibility(View.VISIBLE); tvDate.setText(intent.getStringExtra("date")); etContent.setText(intent.getStringExtra("content")); imageView.setImageURI(Uri.parse(intent.getStringExtra("path"))); } } public void save(View view) { DBHelper dbHelper=new DBHelper(this); boolean result=false; String content=etContent.getText().toString(); if(content.length()>0){ if(id==1) { dbHelper.updateData(id, content, DBUtils.getTime(), uri.toString()); } else{ result=dbHelper.insertOneNote(etContent.getText().toString(), DBUtils.getTime(), String.valueOf(uri)); } } if(result) { Toast.makeText(this,"保存成功",Toast.LENGTH_LONG).show(); setResult(RESULT_OK); } } public void back(View view) { finish(); } public void addlei(View view) { if (ContextCompat.checkSelfPermission(AddorUpdateActivity.this , Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager .PERMISSION_GRANTED ||ContextCompat.checkSelfPermission(AddorUpdateActivity.this , Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager .PERMISSION_GRANTED) { ActivityCompat.requestPermissions(AddorUpdateActivity.this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE,Manifest.permission.READ_EXTERNAL_STORAGE}, 1); } else { openAlbum(); } } private void openAlbum() { /*Intent intent=new Intent("android.intent.action.GET_CONTENT"); intent.setType("image/*"); //打开相册 startActivityForResult(intent,CHOOSE_PHOTE);*/ Intent intent; intent = new Intent(Intent.ACTION_OPEN_DOCUMENT); intent.addCategory(Intent.CATEGORY_OPENABLE); intent.setType("*/*"); startActivityForResult(intent, 2); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == 2) { // 从相册返回的数据 Log.e(this.getClass().getName(), "Result:" + data.toString()); if (data != null) { // 得到图片的全路径 uri = data.getData(); imageView.setImageURI(uri); Log.e(this.getClass().getName(), "Uri:" + uri); } } } }