How to copy files to another path(Download to Data folder) from your Android App? -Android 12 API 32
This video shows the steps to read the content of file from one location and copy it to another location from your Android App.
It reads an image file from Download folder and then writes to app data folder. It uses inputstream.read to read the file content and outputstream.write to copy the data to the new file.
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Complete source code and other details/ steps of this video are posted in the below link:
https://programmerworld.co/android/ho...
However, the main Java code is copied below also for reference:
package com.programmerworld.copyfilesapp;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import android.Manifest;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.os.storage.StorageManager;
import android.os.storage.StorageVolume;
import android.view.View;
import android.widget.TextView;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.List;
public class MainActivity extends AppCompatActivity {
private TextView textView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ActivityCompat.requestPermissions(this, new String[]{
Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.READ_EXTERNAL_STORAGE},
PackageManager.PERMISSION_GRANTED);
textView = findViewById(R.id.textView);
}
public void buttonCopyFiles(View view){
StorageManager storageManager = (StorageManager) getSystemService(STORAGE_SERVICE);
List ANGULAR_BRACKET StorageVolume ANGULAR_BRACKET storageVolumeList = storageManager.getStorageVolumes();
StorageVolume storageVolume = storageVolumeList.get(0);
File fileSource =new File(storageVolume.getDirectory().getPath()+"/Download/Image.jpeg");
File fileDestination = new File(getExternalFilesDir(null), "Image_Destination1.jpeg");
try {
InputStream inputStream = new FileInputStream(fileSource);
OutputStream outputStream = new FileOutputStream(fileDestination);
byte[] byteArrayBuffer = new byte[1024];
int intLength;
while ((intLength = inputStream.read(byteArrayBuffer)) LESS_THAN 0){
outputStream.write(byteArrayBuffer, 0, intLength);
}
inputStream.close();
outputStream.close();
textView.setText("SUCCESS");
}catch (Exception e){
textView.setText("ERROR: " + e.toString());
}
}
}
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