基于Android的田间图像数据采集移动应用设计与实现

package com.example.graduationdesign; import androidx.annotation.Nullable; import androidx.appcompat.app.AlertDialog; import androidx.appcompat.app.AppCompatActivity; import androidx.core.app.ActivityCompat; import androidx.core.content.ContextCompat; import androidx.core.content.FileProvider; import android.Manifest; import android.app.Activity; import android.content.DialogInterface; import android.content.Intent; import android.content.pm.PackageManager; import android.database.Cursor; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Typeface; import android.graphics.drawable.Drawable; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.provider.DocumentsContract; import android.provider.MediaStore; import android.text.InputType; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.TextView; import android.widget.Toast; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.nio.file.Files; import java.text.SimpleDateFormat; import java.util.Date; import java.util.LinkedHashMap; import java.util.Map; import java.util.Set; import java.util.regex.Matcher; import java.util.regex.Pattern; public class imageData extends Activity { //相机事件 private static final int REQUEST_IMAGE_CAPTURE = 1; //相册事件 private static final int REQUEST_CODE_SELECT_IMAGE = 2; //同时获取相机相册权限 private static final int MY_REQUEST_CODE = 3000; //照片存储文件夹 private static String mDir = ""; //照片存储路径 private String mCurrentPhotoPath = ""; //照片名称 private String mCurrentPhotoName = ""; //植株id private String ID = ""; private File documentsDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS); private File imgDirectory = new File(documentsDirectory, "data_img"); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_image_data); //同时请求相机、读写、相册权限 if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED || ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED || ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) { ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA, Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE}, MY_REQUEST_CODE); } Intent intent =getIntent(); //获取布局 LinearLayout imageLayout = (LinearLayout)findViewById(R.id.imageLayout); //定义文件名称 String fname = "example_image.xlsx"; Button fBut = (Button)findViewById(R.id.img_file); TextView fView = (TextView)findViewById(R.id.img_file_name); fBut.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { AlertDialog.Builder builder = new AlertDialog.Builder(imageData.this); builder.setTitle("请输入excel名称"); final EditText input = new EditText(imageData.this); input.setInputType(InputType.TYPE_CLASS_TEXT); builder.setView(input); builder.setPositiveButton("确认", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { String text = input.getText().toString(); fView.setText(text+".xlsx"); } }); builder.setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.cancel(); } }); builder.show(); } }); //监听打开excel Button excel_open = (Button) findViewById(R.id.img_excel); excel_open.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { TextView fName = (TextView)findViewById(R.id.img_file_name); String fileName = fName.getText().toString(); // 获取要打开的Excel文件的路径 File file = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS)+"/data_excel/" + fileName); if (file.exists()) { // 文件已存在，执行您的操作 Uri fileUri = FileProvider.getUriForFile(imageData.this, getPackageName() + ".fileprovider", file); Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(fileUri, "application/vnd.ms-excel"); intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); startActivity(intent); } else { // 文件不存在，弹出对话框 Toast.makeText(imageData.this, "文件不存在，无法查看！", Toast.LENGTH_SHORT).show(); } } }); //iconImg_icon的显示 Typeface font = Typeface.createFromAsset(getAssets(), "iconfont.ttf"); TextView iconImg_id = findViewById(R.id.iconImg_id); iconImg_id.setTypeface(font); iconImg_id.setText(getResources().getString(R.string.plants_id)); //监听照片存储按钮 Button picDir = (Button)findViewById(R.id.pic_dir); Drawable icon_dir=getResources().getDrawable(R.drawable.icon_dir); icon_dir.setBounds(0,0,50,50);//必须设置图片的大小否则没有作用 picDir.setCompoundDrawables(icon_dir,null ,null,null);//设置图片left这里如果是右边就放到第二个参数里面依次对应 picDir.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { AlertDialog.Builder builder = new AlertDialog.Builder(imageData.this); builder.setTitle("请输入文件夹名称"); final EditText input = new EditText(imageData.this); input.setInputType(InputType.TYPE_CLASS_TEXT); builder.setView(input); builder.setPositiveButton("确认", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { mDir = input.getText().toString(); TextView DirView = (TextView)findViewById(R.id.dir_name); DirView.setText("/"+mDir); } }); builder.setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.cancel(); } }); builder.show(); } }); //监听跳转图像存储文件夹 Button imgDir_open = (Button) findViewById(R.id.img_dir); Drawable icon_see=getResources().getDrawable(R.drawable.icon_see); icon_see.setBounds(0,0,50,50);//必须设置图片的大小否则没有作用 imgDir_open.setCompoundDrawables(icon_see,null ,null,null);