How to save image to external storage android studio
AndroidManifest.xml
<!-- Add Read and Write Permissions in the Manifest File-->
<uses-permission
android:name="android.permission.WRITE_EXTERNAL_STORAGE"
tools:ignore="ScopedStorage" />
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical"
tools:context=".MainActivity">
<ImageView
android:id="@+id/imageView"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:src="@drawable/your_image" />
<androidx.appcompat.widget.AppCompatButton
android:id="@+id/saveBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:text="Save Image To Memory" />
<ImageView
android:id="@+id/imageView2"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:adjustViewBounds="true" />
<androidx.appcompat.widget.AppCompatButton
android:id="@+id/getImageBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:text="Get Image From Memory" />
</LinearLayout>
MainActivity.java
import android.Manifest;
import android.content.ContentValues;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.view.View;
import android.widget.ImageView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.AppCompatButton;
import androidx.core.content.ContextCompat;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
public class MainActivity extends AppCompatActivity {
private ImageView imageView2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final AppCompatButton saveBtn = findViewById(R.id.saveBtn);
final AppCompatButton getImageBtn = findViewById(R.id.getImageBtn);
final ImageView imageView = findViewById(R.id.imageView);
imageView2 = findViewById(R.id.imageView2);
saveBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// check if external storage permissions granted or not
if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED ||
ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
// request for permissions
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE}, 102);
}
}
else{
// getting bitmap from ImageView
Bitmap bitmap = ((BitmapDrawable) imageView.getDrawable()).getBitmap();
// saving Bitmap to Memory
saveBitmapToMemory("file_name.jpg", bitmap);
}
}
});
getImageBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
getImageFromMemory("file_name.jpg");
}
});
}
private void saveBitmapToMemory(String filename, Bitmap bitmap) {
OutputStream imageOutStream;
try {
// The latest and best way to save images into external storage above API level 29
// In old methods, you can create your own folders in external storage's root directory to save file but now you are now unable to create folders in the root.
// You can only use existing folder like Documents, Downloads, Pictures, Movies etc.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
ContentValues values = new ContentValues();
values.put(MediaStore.Images.Media.DISPLAY_NAME, filename); // set image filename
values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg"); // setting image file format
values.put(MediaStore.Images.Media.RELATIVE_PATH, Environment.DIRECTORY_PICTURES); // specify directory in which image will be saved
//values.put(MediaStore.Images.Media.RELATIVE_PATH, Environment.DIRECTORY_PICTURES + "/YourFolderName"); // You can create your folder in Pictures Directory
// getting uri or file location
final Uri uri = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
// getting output stream to save file
imageOutStream = getContentResolver().openOutputStream(uri);
} else {
// for below API level 29 we need to use old way to store Media Files like images, videos, etc.
final String picturesDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).toString();
final File image = new File(picturesDirectory, filename);
imageOutStream = new FileOutputStream(image);
}
// saving Bitmap
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, imageOutStream);
imageOutStream.close(); // close output stream
} catch (IOException e) {
e.printStackTrace();
Toast.makeText(this, "Something went wrong!! Unable to save Image " + e.getMessage(), Toast.LENGTH_SHORT).show();
}
}
private void getImageFromMemory(String filename) {
// specify image directory
final File pictureDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
final File imageFile = new File(pictureDirectory, filename);
// check if Image File Exists
if (imageFile.exists()) {
// getting bitmap from file
final Bitmap fileBitmap = BitmapFactory.decodeFile(imageFile.getAbsolutePath());
// setting Bitmap to ImageView
imageView2.setImageBitmap(fileBitmap);
} else {
Toast.makeText(this, "File Not Exists", Toast.LENGTH_SHORT).show();
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == 102) {
if (grantResults.length > 0 && grantResults[0] != PackageManager.PERMISSION_GRANTED) {
Toast.makeText(this, "Permissions Declined", Toast.LENGTH_SHORT).show();
}
}
}
}
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