Shravan DG Shravan DG - 3 months ago 69
Android Question

Saving an image from ImageView into internal storage

I have created an ImageView and I can see the preview of the Camera and load the captured image into the ImageView and I wanted to store the image into a directory in my internal memory. I have referred many posts and tried but I couldn't find my image in my internal memory. This is the code I have used:

package com.example.shravan.camera;

import android.content.Context;
import android.content.ContextWrapper;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;


public class MainActivity extends AppCompatActivity {
private final String TAG = "abc";


static final int REQUEST_IMAGE_CAPTURE =1 ;
ImageView iv;
Uri imageUri;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button btn = (Button)findViewById(R.id.myB);
iv = (ImageView) findViewById(R.id.myIV);
//disable the button if the user has no camera
if(!hasCamera())
{
btn.setEnabled(false);
}
}


public boolean hasCamera()
{

return getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_ANY);
}

//on click event handler that launches the camera
public void launchCamera(View v)
{
Intent i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(i, REQUEST_IMAGE_CAPTURE);
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if(requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK)
{
imageUri=data.getData();
iv.setImageURI(imageUri);;
}
}

public void SaveFile(View v){
BitmapDrawable drawable = (BitmapDrawable) iv.getDrawable();
Bitmap bitmap = drawable.getBitmap();

print("Creating cw");
ContextWrapper cw = new ContextWrapper(this.getApplicationContext());
print("Creating dir");
File directory = cw.getDir("ImagesDir", Context.MODE_PRIVATE);
print("Created dir" + directory);
File mypath=new File(directory,"myImagesDGS.jpg");
print("path is"+mypath);

FileOutputStream fos = null;
try {
print("creating fos");
fos = new FileOutputStream(mypath);
print("Compressing bitmap");
bitmap.compress(Bitmap.CompressFormat.PNG, 100, fos);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
fos.close();
print("fos closed");
} catch (IOException e) {
e.printStackTrace();
}
}
}

private void print(String str){
Log.d(TAG, str);
}


}

I have made many log messages to debug and I got one path which I couldn't find in my phone. This is the logcat:


08-07 21:47:37.089 11030-11030/com.example.shravan.camera D/abc:
Creating cw 08-07

21:47:37.089 11030-11030/com.example.shravan.camera
D/abc: Creating dir 08-07

21:47:37.099
11030-11030/com.example.shravan.camera D/abc: Created
dir/data/user/0/com.example.shravan.camera/app_ImagesDir 08-07

21:47:37.099 11030-11030/com.example.shravan.camera D/abc: path
is/data/user/0/com.example.shravan.camera/app_ImagesDir/myImagesDGS.jpg

08-07 21:47:37.099 11030-11030/com.example.shravan.camera D/abc:
creating fos

08-07 21:47:37.099 11030-11030/com.example.shravan.camera
D/abc: Compressing bitmap

08-07 21:47:42.589
11030-11030/com.example.shravan.camera D/abc: fos closed


Is there anything I need to check and I should change? Please help!

Answer

Got it working!

I used this code to create a directory in my file storage and then store the image:

FileOutputStream outStream = null;

    // Write to SD Card
    try {
        File sdCard = Environment.getExternalStorageDirectory();
        File dir = new File(sdCard.getAbsolutePath() + "/camtest");
        dir.mkdirs();

        String fileName = String.format("%d.jpg", System.currentTimeMillis());
        File outFile = new File(dir, fileName);

        outStream = new FileOutputStream(outFile);
        bitmap.compress(Bitmap.CompressFormat.JPEG, 100, outStream);
        outStream.flush();
        outStream.close();

        Log.d(TAG, "onPictureTaken - wrote to " + outFile.getAbsolutePath());

        refreshGallery(outFile);
    } catch (FileNotFoundException e) {
        print("FNF");
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
    }

My permissions:

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

Finally, the most important thing:

Go to Device Settings>Device>Applications>Application Manager>"your app">Permissions>Enable Storage permission!