当相机尺寸超过1500万像素时，从手机捕获图像时'Image must be resized'错误

Question

高堆栈溢出团队，

以下是PhotoEditor Android应用程序的java代码，用于捕获图像并将图像保存在手机中

以下是MainActivity.java文件：

package com.example.photoeditor;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.ImageView;
import com.adobe.creativesdk.aviary.AdobeImageIntent;
public class MainActivity extends AppCompatActivity {
public static final String IMAGE_URI = "IMAGE_URI_KEY";
private static final String TAG = "MainActivity";
private static final int IMAGE_EDITOR_RESULT = 1;
private ImageView mEditedImageView;
@Override protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mEditedImageView = (ImageView) findViewById(R.id.edited_image_view);
Bundle extras = getIntent().getExtras();
if (extras != null) {
Uri imageUri = Uri.parse(getIntent().getExtras().getString(IMAGE_URI));
Intent imageEditorIntent = new AdobeImageIntent.Builder(this).setData(imageUri).build();
startActivityForResult(imageEditorIntent, IMAGE_EDITOR_RESULT);
finish(); // Comment this out to receive edited image
}
}
// Do something with the edited image
@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
switch (requestCode) {
case IMAGE_EDITOR_RESULT:
Uri editedImageUri = data.getParcelableExtra(AdobeImageIntent.EXTRA_OUTPUT_URI);
Log.d(TAG, "editedImageUri: " + editedImageUri.toString());
Bundle extra = data.getExtras();
if (extra != null) {
boolean changed = extra.getBoolean(AdobeImageIntent.EXTRA_OUT_BITMAP_CHANGED);
Log.d(TAG, "Image edited: " + changed);
if (changed) {
mEditedImageView.setImageURI(editedImageUri);
}
}
break;
default:
throw new IllegalArgumentException("Unexpected request code");
}
}
}
public static Intent getIntent(Context context, Bundle bundle) {
Intent intent = new Intent(context, MainActivity.class);
if (bundle != null) {
intent.putExtras(bundle);
}
return intent;
}
}

以下是HomeActivity.java文件：

package com.example.photoeditor;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.provider.MediaStore.Images.Media;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v4.content.FileProvider;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Toast;
import java.io.File;
import java.io.IOException;
import java.text.DateFormat;
import java.util.Date;
import java.util.Objects;
import static android.Manifest.permission.CAMERA;
import static android.Manifest.permission.READ_EXTERNAL_STORAGE;
import static android.Manifest.permission.WRITE_EXTERNAL_STORAGE;
import static android.content.pm.PackageManager.PERMISSION_GRANTED;
public class HomeActivity extends AppCompatActivity {
private static final String TAG = "HomeActivity";
private static final int GALLERY_RESULT = 1;
private static final int CAMERA_RESULT = 2;
private static final String FILE_PROVIDER_AUTHORITY = "com.example.photoeditor";
private static final int CAMERA_PERMISSION_REQ_CODE = 1001;
private static final int STORAGE_PERMISSION_REQ_CODE = 1002;
private String mCapturedImagePath;
@Override protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
}
public void openCamera(View view) {
// check for camera permission if not granted before
if (ContextCompat.checkSelfPermission(this, CAMERA) != PERMISSION_GRANTED) {
String[] cameraPermission = { CAMERA };
ActivityCompat.requestPermissions(this, cameraPermission, CAMERA_PERMISSION_REQ_CODE);
} else {
dispatchImageCaptureIntent();
}
}
public void openGallery(View view) {
// check for storage permission if not granted before
if (ContextCompat.checkSelfPermission(this, READ_EXTERNAL_STORAGE) != PERMISSION_GRANTED ||
ContextCompat.checkSelfPermission(this, WRITE_EXTERNAL_STORAGE) != PERMISSION_GRANTED) {
String[] storagePermissions = { READ_EXTERNAL_STORAGE, WRITE_EXTERNAL_STORAGE };
ActivityCompat.requestPermissions(this, storagePermissions, STORAGE_PERMISSION_REQ_CODE);
} else {
dispatchGalleryIntent();
}
}
private void dispatchGalleryIntent() {
Intent galleryIntent = new Intent(Intent.ACTION_PICK, Media.EXTERNAL_CONTENT_URI);
startActivityForResult(galleryIntent, GALLERY_RESULT);
}
private void dispatchImageCaptureIntent() {
Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (cameraIntent.resolveActivity(getPackageManager()) != null) {
File photoFile = null;
try {
photoFile = createImageFile();
} catch (IOException e) {
e.printStackTrace();
}
if (photoFile != null) {
Uri photoFileUri = FileProvider.getUriForFile(this, FILE_PROVIDER_AUTHORITY, photoFile);
Log.d(TAG, "dispatchImageCaptureIntent:photoFileUri: " + photoFile.toString());
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoFileUri);
startActivityForResult(cameraIntent, CAMERA_RESULT);
}
}
}
@Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
@NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode) {
case CAMERA_PERMISSION_REQ_CODE:
if (grantResults[0] == PERMISSION_GRANTED) {
dispatchImageCaptureIntent();
} else {
Toast.makeText(this, "Required camera permission not granted", Toast.LENGTH_SHORT).show();
}
break;
case STORAGE_PERMISSION_REQ_CODE:
if (grantResults[0] == PERMISSION_GRANTED) {
dispatchGalleryIntent();
} else {
Toast.makeText(this, "Required storage permission not granted", Toast.LENGTH_SHORT)
.show();
}
break;
default:
throw new IllegalArgumentException("Unexpected request code");
}
}
private File createImageFile() throws IOException {
String timeStamp = DateFormat.getDateTimeInstance().format(new Date());
String imageFileName = "JPEG_" + timeStamp + "_";
File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
File image = File.createTempFile(imageFileName, ".jpg", storageDir);
mCapturedImagePath = image.getAbsolutePath();
return image;
}
private Bundle uriToBundle(Uri imageUri) {
Bundle bundle = new Bundle();
bundle.putString(MainActivity.IMAGE_URI, imageUri.toString());
return bundle;
}
@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
if (requestCode == GALLERY_RESULT) {
Uri imageUri = data.getData();
startActivity(MainActivity.getIntent(this, uriToBundle(Objects.requireNonNull(imageUri))));
} else if (requestCode == CAMERA_RESULT) {
File imageFile = new File(mCapturedImagePath);
Uri imageUri = Uri.fromFile(imageFile);
startActivity(MainActivity.getIntent(this, uriToBundle(imageUri)));
}
} else {
Toast.makeText(this, "Image not loaded.", Toast.LENGTH_SHORT).show();
}
}
public static Intent getIntent(Context context) {
return new Intent(context, HomeActivity.class);
}
}

以下是activity_home XML文件：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
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"
tools:context="com.example.photoeditor.HomeActivity">
<ImageView
android:id="@+id/home_background"
android:layout_width="250dp"
android:layout_height="250dp"
android:layout_centerInParent="true"
android:contentDescription="@string/astronaut_content_desc"
android:scaleType="centerCrop"
android:src="@drawable/picture"/>
<LinearLayout
android:id="@+id/title_home"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="75dp"
android:gravity="center"
tools:ignore="UseCompoundDrawables">
<ImageView
android:id="@+id/home_logo"
android:layout_width="@dimen/logo_width"
android:layout_height="@dimen/logo_height"
android:contentDescription="@string/app_logo_content_desc"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/app_name"
android:textColor="@color/whitePrimary"
android:textSize="50sp"/>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_below="@id/title_home"
android:layout_centerHorizontal="true"
android:layout_marginBottom="25dp"
android:gravity="bottom">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="65dp">
<ImageView
android:id="@+id/camera_button_image"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_centerHorizontal="true"
android:contentDescription="@string/camera_button_content_desc"
android:onClick="openCamera"
android:src="@drawable/ic_camera_alt_white"/>
<TextView
android:id="@+id/camera_button_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/camera_button_image"
android:layout_marginTop="7dp"
android:onClick="openCamera"
android:text="@string/camera_button_text"
android:textColor="@color/whitePrimary"/>
</RelativeLayout>
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/gallery_button_image"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_centerHorizontal="true"
android:contentDescription="@string/gallery_button_content_desc"
android:onClick="openGallery"
android:src="@drawable/ic_phone_android_white"/>
<TextView
android:id="@+id/gallery_button_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/gallery_button_image"
android:layout_marginTop="7dp"
android:onClick="openGallery"
android:text="@string/gallery_button_text"
android:textColor="@color/whitePrimary"/>
</RelativeLayout>
</LinearLayout>
</RelativeLayout>

以下是activity_main XML文件：

<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:background="@color/colorPrimary"
tools:context="com.example.photoeditor.MainActivity">
<ImageView
android:id="@+id/edited_image_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:adjustViewBounds="true"
android:contentDescription="@string/edited_image_content_desc"/>
</LinearLayout>

问题是在拍摄图像后，然后从应用程序编辑照片，然后当图像必须保存时，我看到图像没有保存在手机中

当我在Android Studio中看到Logcat时，我看到了以下警告：

2018-10-27 23:59:57.250 2437-3574/com.example.photoeditor D/skia-encoders: [time] JPEG Decode 951
2018-10-27 23:59:57.250 2437-3574/com.example.photoeditor V/moahd-jni: decode time: 952
2018-10-27 23:59:57.250 2437-3574/com.example.photoeditor V/moahd-jni: bitmap.size: 5184x3880
2018-10-27 23:59:57.250 2437-3574/com.example.photoeditor I/moahd-jni: resize(15)
2018-10-27 23:59:57.250 2437-3574/com.example.photoeditor V/moahd-jni: bitmap MP: 20, max MP: 15
2018-10-27 23:59:57.250 2437-3574/com.example.photoeditor W/moahd-jni: Image must be resized! 20MP -> 15MP
2018-10-27 23:59:57.250 2437-3574/com.example.photoeditor V/moahd-jni: target: 15MP = (4477x3351), max size: 4477
2018-10-27 23:59:57.250 2437-3574/com.example.photoeditor V/moahd-jni: original: 20MP = (5184x3880)
2018-10-27 23:59:57.250 2437-3574/com.example.photoeditor V/moahd-jni: maxWidth: 4477, maxHeight: 3351

因此，只有当手机的摄像头尺寸超过1500万像素时才能拍摄图像，这才是节省成本的问题。

有人能帮忙提供可能的代码解决方案吗？

提前感谢

Answer 1

使用此代码调整大小并保存：

Bitmap image = (Bitmap) "your image";
image = Bitmap.createScaledBitmap(photo, 100, 100, false);
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
image.compress(Bitmap.CompressFormat.JPEG, 60, bytes);
File file = new File(Environment.getExternalStorageDirectory()
+ File.separator + "name.jpg");
file.createNewFile();
FileOutputStream fo = new FileOutputStream(file);
fo.write(bytes.toByteArray());
fo.close();

60表示压缩质量：0表示最大压缩低质量。100是压缩最小、质量最高的