Метка: android studio

Задача: по кнопке сделать в приложении фото, и сохранить его с уникальным именем в папку приложения.

Решение:

1) Поправим файл AndroidManifest.xml:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="eee.photossinhro">
    <uses-feature android:name="android.hardware.camera" android:required="true" />
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <application
	...
        <provider
            android:name="android.support.v4.content.FileProvider"
            android:authorities="eee.fileprovider"
            android:grantUriPermissions="true"
            android:exported="false">
            <meta-data
                android:name="android.support.FILE_PROVIDER_PATHS"
                android:resource="@xml/filepaths" />
        </provider>
	...
    </application>
</manifest>

2) Добавим файл /xml/filepath.xml в папке res:

<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <external-path name="photossinhro"
        path="Android/data/eee.photossinhro/files/Pictures" />
</paths>

3) Код приложения примерно следующий:

package eee.photossinhro;

import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v4.content.FileProvider;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.CardView;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.Toast;

import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;

import static android.media.tv.TvTrackInfo.TYPE_VIDEO;

public class PhotosActivity extends AppCompatActivity {
    String id; //идентификатор аккаунта
    private Context cntcur;

    static final int REQUEST_PICTURE_CAPTURE = 1;
    private ImageView image;
    private String pictureFilePath;

    private File getPictureFile() throws IOException {
        String timeStamp = new SimpleDateFormat("yyyyMMddHHmmss").format(new Date());
        String pictureFile = "photossinhro" + timeStamp;
        File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
        File image = File.createTempFile(pictureFile,  ".jpg", storageDir);
        pictureFilePath = image.getAbsolutePath();
        Log.i("Info", "--путь:"+pictureFilePath);
        return image;
    }
    private void sendTakePictureIntent() {
        Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        cameraIntent.putExtra( MediaStore.EXTRA_FINISH_ON_COMPLETION, true);
        if (cameraIntent.resolveActivity(getPackageManager()) != null) {
            startActivityForResult(cameraIntent, REQUEST_PICTURE_CAPTURE);
            File pictureFile = null;
            try {
                pictureFile = getPictureFile();
            } catch (IOException ex) {
                Toast.makeText(this, "Photo file can't be created, please try again", Toast.LENGTH_SHORT).show();
                return;
            }
            if (pictureFile != null) {
                Uri photoURI = FileProvider.getUriForFile(this, "eee.photossinhro.fileprovider", pictureFile);
                cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
                startActivityForResult(cameraIntent, REQUEST_PICTURE_CAPTURE);
            }
        }
    }
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_photos);

        id = getIntent().getExtras().getString("id");

        Log.i("Info","--мы в новой активности! ID="+id);
        cntcur=this;
        // нажата кнопка "сделать фото"
        Button button = (Button) findViewById(R.id.CreatePhotos);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Log.i("Info", "--нажата кнопка сделать фото");
                if(getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA)){
                    sendTakePictureIntent();
                }
            }
        });

    }
}