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Dodana opcja robienia zdjęć z podglądem w nowym oknie

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Krokogator 2018-12-05 11:29:27 +01:00
parent 8a790ab839
commit 5635f41cce
7 changed files with 223 additions and 3 deletions
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2
android/.idea/misc.xml
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@ -29,7 +29,7 @@
</value>
</option>
</component>
<component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
<component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="JDK" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/out" />
</component>
</project>

14
android/app/src/main/AndroidManifest.xml
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@ -2,6 +2,8 @@
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.krokogator.photoeat">
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
@ -16,6 +18,18 @@
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".PhotoPreviewActivity">
</activity>
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="com.krokogator.photoeat.android.fileprovider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/provider_paths"></meta-data>
</provider>
</application>
</manifest>

85
android/app/src/main/java/com/krokogator/photoeat/MainActivity.java
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@ -1,13 +1,96 @@
package com.krokogator.photoeat;
import android.support.v7.app.AppCompatActivity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v4.content.FileProvider;
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.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
public class MainActivity extends AppCompatActivity {
static final int REQUEST_TAKE_PHOTO = 1;
ImageView photo_preview;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button btnCamera = (Button) findViewById(R.id.button_take_photo);
photo_preview = (ImageView) findViewById(R.id.mainImgView);
btnCamera.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
dispatchTakePictureIntent();
// System.out.println(getPic().getHeight());
}
});
}
static final int REQUEST_IMAGE_CAPTURE = 1;
String mCurrentPhotoPath;
private File createImageFile() throws IOException {
// Create an image file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "JPEG_" + timeStamp + "_";
File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
File image = File.createTempFile(
imageFileName, /* prefix */
".jpg", /* suffix */
storageDir /* directory */
);
// Save a file: path for use with ACTION_VIEW intents
mCurrentPhotoPath = image.getAbsolutePath();
return image;
}
private void dispatchTakePictureIntent() {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
// Ensure that there's a camera activity to handle the intent
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
// Create the File where the photo should go
File photoFile = null;
try {
photoFile = createImageFile();
} catch (IOException ex) {
// Error occurred while creating the File
}
// Continue only if the File was successfully created
if (photoFile != null) {
Uri photoURI = FileProvider.getUriForFile(this,
"com.krokogator.photoeat.android.fileprovider",
photoFile);
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
}
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
Intent previewPhotoIntent = new Intent(this, PhotoPreviewActivity.class);
previewPhotoIntent.putExtra("imagePath", mCurrentPhotoPath);
startActivity(previewPhotoIntent);
}
}
}

91
android/app/src/main/java/com/krokogator/photoeat/PhotoPreviewActivity.java Normal file
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@ -0,0 +1,91 @@
package com.krokogator.photoeat;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.media.ExifInterface;
import android.media.Image;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.ImageView;
import java.util.logging.Logger;
public class PhotoPreviewActivity extends AppCompatActivity {
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.photo_previev);
String imagePath = (String) getIntent().getExtras().get("imagePath");
ImageView preview = findViewById(R.id.photo_preview);
preview.setImageBitmap(getPic(imagePath));
}
private Bitmap getPic(String picPath) {
// Get the dimensions of the View
int targetW = 800;
int targetH = 1200;
// Get the dimensions of the bitmap
BitmapFactory.Options bmOptions = new BitmapFactory.Options();
bmOptions.inJustDecodeBounds = true;
BitmapFactory.decodeFile(picPath, bmOptions);
int photoW = bmOptions.outWidth;
int photoH = bmOptions.outHeight;
// Determine how much to scale down the image
int scaleFactor = Math.min(photoW/targetW, photoH/targetH);
// Decode the image file into a Bitmap sized to fill the View
bmOptions.inJustDecodeBounds = false;
bmOptions.inSampleSize = scaleFactor;
bmOptions.inPurgeable = true;
Bitmap bitmap = BitmapFactory.decodeFile(picPath, bmOptions);
bitmap = getCorrectlyRotated(picPath, bitmap);
return bitmap;
}
private Bitmap getCorrectlyRotated(String imagePath, Bitmap bitmap){
// Rotate Image if Needed
try
{
// Determine Orientation
ExifInterface exif = new ExifInterface(imagePath);
int orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, 1);
// Determine Rotation
int rotation = 0;
if (orientation == 6) rotation = 90;
else if (orientation == 3) rotation = 180;
else if (orientation == 8) rotation = 270;
// Rotate Image if Necessary
if (rotation != 0)
{
// Create Matrix
Matrix matrix = new Matrix();
matrix.postRotate(rotation);
// Rotate Bitmap
Bitmap rotated = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
// Pretend none of this ever happened!
bitmap.recycle();
bitmap = rotated;
rotated = null;
}
}
catch (Exception e)
{
// TODO: Log Error Messages Here
}
return bitmap;
}
}

8
android/app/src/main/res/layout/activity_main.xml
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@ -6,8 +6,14 @@
android:layout_height="match_parent"
tools:context="com.krokogator.photoeat.MainActivity">
<ImageView
android:id="@+id/mainImgView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
tools:srcCompat="@tools:sample/backgrounds/scenic" />
<Button
android:id="@+id/button"
android:id="@+id/button_take_photo"
android:layout_width="0dp"
android:layout_height="94dp"
android:layout_marginStart="36dp"

22
android/app/src/main/res/layout/photo_previev.xml Normal file
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@ -0,0 +1,22 @@
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/photo_preview"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="32dp"
android:layout_marginTop="32dp"
android:layout_marginEnd="32dp"
android:layout_marginBottom="32dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:srcCompat="@tools:sample/backgrounds/scenic" />
</android.support.constraint.ConstraintLayout>

4
android/app/src/main/res/xml/provider_paths.xml Normal file
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@ -0,0 +1,4 @@
<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<external-path name="my_images" path="Android/data/com.krokogator.photoeat/files/Pictures" />
</paths>