Java 在图像视图（Android Studio）中分别设置相机的两个裁剪图像
我尝试从相机中拍摄两张图像，然后在两张Java 在图像视图（Android Studio）中分别设置相机的两个裁剪图像,java,android,android-studio,android-intent,onactivityresult,Java,Android,Android Studio,Android Intent,Onactivityresult,我尝试从相机中拍摄两张图像，然后在两张图像视图中分别显示裁剪后的图像。 我有两个按钮打开相机，一个用于拍摄第一幅图像，然后裁剪以在图像视图中显示，第二个则执行相同的操作 main活动中的我的代码 计算中的变量 static int CAMERA_REQUEST_CODE = 228; static int CAMERA_REQUEST_CODE1 = 229; Uri pictureUri = null; ImageView iv, iv1; Button bt, bt1; onCreate
图像视图中分别显示裁剪后的图像。
我有两个按钮
打开相机，一个用于拍摄第一幅图像，然后裁剪以在图像视图
中显示，第二个则执行相同的操作
main活动中的我的代码
计算中的变量
static int CAMERA_REQUEST_CODE = 228;
static int CAMERA_REQUEST_CODE1 = 229;
Uri pictureUri = null;
ImageView iv, iv1;
Button bt, bt1;
onCreate方法
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
iv = findViewById(R.id.iv);
bt = findViewById(R.id.bt);
iv1 = findViewById(R.id.iv1);
bt1 = findViewById(R.id.bt1);
bt.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
invokeCamera();
}
});
bt1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
invokeCamera1();
}
});
}
invokeCamera（）和invokeCamera1（）函数
public void invokeCamera() {
// get a file reference
pictureUri = FileProvider.getUriForFile(this, getApplicationContext().getPackageName(), createImageFile()); // Make Uri file example file://storage/emulated/0/Pictures/Civil_ID20180924_180619.jpg
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); // Go to camera
// tell the camera where to save the image.
intent.putExtra(MediaStore.EXTRA_OUTPUT, pictureUri);
// tell the camera to request WRITE permission.
intent.setFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
startActivityForResult(intent, CAMERA_REQUEST_CODE);
}
public void invokeCamera1() {
// get a file reference
pictureUri = FileProvider.getUriForFile(this, getApplicationContext().getPackageName(), createImageFile()); // Make Uri file example file://storage/emulated/0/Pictures/Civil_ID20180924_180619.jpg
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); // Go to camera
// tell the camera where to save the image.
intent.putExtra(MediaStore.EXTRA_OUTPUT, pictureUri);
// tell the camera to request WRITE permission.
intent.setFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
startActivityForResult(intent, CAMERA_REQUEST_CODE1);
}
// To create image file in pictures directory
public File createImageFile() {
// the public picture director
File picturesDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES); // To get pictures directory from android system
// timestamp makes unique name.
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd_HHmmss");
String timestamp = sdf.format(new Date());
// put together the directory and the timestamp to make a unique image location.
File imageFile = new File(picturesDirectory, timestamp + ".jpg");
return imageFile;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent
data) {
super.onActivityResult(requestCode, resultCode, data);
if(resultCode == RESULT_OK) // resultCode: -1
{
if(requestCode == CAMERA_REQUEST_CODE ) // requestCode: 288
{
Uri picUri = pictureUri;
startCropImageActivity(picUri);
Toast.makeText(MainActivity.this, "Image 1 save",
Toast.LENGTH_SHORT).show();
}
if(requestCode == CAMERA_REQUEST_CODE1)
{
Uri picUri = pictureUri;
startCropImageActivity(picUri);
Toast.makeText(MainActivity.this, "Image 2 save",
Toast.LENGTH_SHORT).show();
}
}
if(requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE)
{
CropImage.ActivityResult result = CropImage.getActivityResult(data);
if(resultCode == RESULT_OK)
{
Croppedimage(result, iv); // my problem !
/*
* Here i want to use if or switch statement to can use iv1
for second camera button! HOW?
*
* example
*
* if(for first camera button)
* {
* Croppedimage(result, iv);
* }
*
* if(for second camera button)
* {
* Croppedimage(result, iv1);
* }
*
* */
}
else if(resultCode ==
CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE)
{
// if there is any error show it
Exception error = result.getError();
Toast.makeText(this, "" + error, Toast.LENGTH_LONG).show();
}
}
}
private void startCropImageActivity(Uri imageUri) {
CropImage.activity(imageUri)
.setGuidelines(CropImageView.Guidelines.ON)
.setMultiTouchEnabled(true)
.start(this);
}
public void Croppedimage(CropImage.ActivityResult result,ImageView iv)
{
Uri resultUri = null; // get image uri
if (result != null) {
resultUri = result.getUri();
}
//set image to image view
iv.setImageURI(resultUri);
}
createImageFile（）函数
public void invokeCamera() {
// get a file reference
pictureUri = FileProvider.getUriForFile(this, getApplicationContext().getPackageName(), createImageFile()); // Make Uri file example file://storage/emulated/0/Pictures/Civil_ID20180924_180619.jpg
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); // Go to camera
// tell the camera where to save the image.
intent.putExtra(MediaStore.EXTRA_OUTPUT, pictureUri);
// tell the camera to request WRITE permission.
intent.setFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
startActivityForResult(intent, CAMERA_REQUEST_CODE);
}
public void invokeCamera1() {
// get a file reference
pictureUri = FileProvider.getUriForFile(this, getApplicationContext().getPackageName(), createImageFile()); // Make Uri file example file://storage/emulated/0/Pictures/Civil_ID20180924_180619.jpg
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); // Go to camera
// tell the camera where to save the image.
intent.putExtra(MediaStore.EXTRA_OUTPUT, pictureUri);
// tell the camera to request WRITE permission.
intent.setFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
startActivityForResult(intent, CAMERA_REQUEST_CODE1);
}
// To create image file in pictures directory
public File createImageFile() {
// the public picture director
File picturesDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES); // To get pictures directory from android system
// timestamp makes unique name.
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd_HHmmss");
String timestamp = sdf.format(new Date());
// put together the directory and the timestamp to make a unique image location.
File imageFile = new File(picturesDirectory, timestamp + ".jpg");
return imageFile;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent
data) {
super.onActivityResult(requestCode, resultCode, data);
if(resultCode == RESULT_OK) // resultCode: -1
{
if(requestCode == CAMERA_REQUEST_CODE ) // requestCode: 288
{
Uri picUri = pictureUri;
startCropImageActivity(picUri);
Toast.makeText(MainActivity.this, "Image 1 save",
Toast.LENGTH_SHORT).show();
}
if(requestCode == CAMERA_REQUEST_CODE1)
{
Uri picUri = pictureUri;
startCropImageActivity(picUri);
Toast.makeText(MainActivity.this, "Image 2 save",
Toast.LENGTH_SHORT).show();
}
}
if(requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE)
{
CropImage.ActivityResult result = CropImage.getActivityResult(data);
if(resultCode == RESULT_OK)
{
Croppedimage(result, iv); // my problem !
/*
* Here i want to use if or switch statement to can use iv1
for second camera button! HOW?
*
* example
*
* if(for first camera button)
* {
* Croppedimage(result, iv);
* }
*
* if(for second camera button)
* {
* Croppedimage(result, iv1);
* }
*
* */
}
else if(resultCode ==
CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE)
{
// if there is any error show it
Exception error = result.getError();
Toast.makeText(this, "" + error, Toast.LENGTH_LONG).show();
}
}
}
private void startCropImageActivity(Uri imageUri) {
CropImage.activity(imageUri)
.setGuidelines(CropImageView.Guidelines.ON)
.setMultiTouchEnabled(true)
.start(this);
}
public void Croppedimage(CropImage.ActivityResult result,ImageView iv)
{
Uri resultUri = null; // get image uri
if (result != null) {
resultUri = result.getUri();
}
//set image to image view
iv.setImageURI(resultUri);
}
onActivityResult函数
public void invokeCamera() {
// get a file reference
pictureUri = FileProvider.getUriForFile(this, getApplicationContext().getPackageName(), createImageFile()); // Make Uri file example file://storage/emulated/0/Pictures/Civil_ID20180924_180619.jpg
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); // Go to camera
// tell the camera where to save the image.
intent.putExtra(MediaStore.EXTRA_OUTPUT, pictureUri);
// tell the camera to request WRITE permission.
intent.setFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
startActivityForResult(intent, CAMERA_REQUEST_CODE);
}
public void invokeCamera1() {
// get a file reference
pictureUri = FileProvider.getUriForFile(this, getApplicationContext().getPackageName(), createImageFile()); // Make Uri file example file://storage/emulated/0/Pictures/Civil_ID20180924_180619.jpg
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); // Go to camera
// tell the camera where to save the image.
intent.putExtra(MediaStore.EXTRA_OUTPUT, pictureUri);
// tell the camera to request WRITE permission.
intent.setFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
startActivityForResult(intent, CAMERA_REQUEST_CODE1);
}
// To create image file in pictures directory
public File createImageFile() {
// the public picture director
File picturesDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES); // To get pictures directory from android system
// timestamp makes unique name.
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd_HHmmss");
String timestamp = sdf.format(new Date());
// put together the directory and the timestamp to make a unique image location.
File imageFile = new File(picturesDirectory, timestamp + ".jpg");
return imageFile;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent
data) {
super.onActivityResult(requestCode, resultCode, data);
if(resultCode == RESULT_OK) // resultCode: -1
{
if(requestCode == CAMERA_REQUEST_CODE ) // requestCode: 288
{
Uri picUri = pictureUri;
startCropImageActivity(picUri);
Toast.makeText(MainActivity.this, "Image 1 save",
Toast.LENGTH_SHORT).show();
}
if(requestCode == CAMERA_REQUEST_CODE1)
{
Uri picUri = pictureUri;
startCropImageActivity(picUri);
Toast.makeText(MainActivity.this, "Image 2 save",
Toast.LENGTH_SHORT).show();
}
}
if(requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE)
{
CropImage.ActivityResult result = CropImage.getActivityResult(data);
if(resultCode == RESULT_OK)
{
Croppedimage(result, iv); // my problem !
/*
* Here i want to use if or switch statement to can use iv1
for second camera button! HOW?
*
* example
*
* if(for first camera button)
* {
* Croppedimage(result, iv);
* }
*
* if(for second camera button)
* {
* Croppedimage(result, iv1);
* }
*
* */
}
else if(resultCode ==
CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE)
{
// if there is any error show it
Exception error = result.getError();
Toast.makeText(this, "" + error, Toast.LENGTH_LONG).show();
}
}
}
private void startCropImageActivity(Uri imageUri) {
CropImage.activity(imageUri)
.setGuidelines(CropImageView.Guidelines.ON)
.setMultiTouchEnabled(true)
.start(this);
}
public void Croppedimage(CropImage.ActivityResult result,ImageView iv)
{
Uri resultUri = null; // get image uri
if (result != null) {
resultUri = result.getUri();
}
//set image to image view
iv.setImageURI(resultUri);
}
启动热带图像活动功能
public void invokeCamera() {
// get a file reference
pictureUri = FileProvider.getUriForFile(this, getApplicationContext().getPackageName(), createImageFile()); // Make Uri file example file://storage/emulated/0/Pictures/Civil_ID20180924_180619.jpg
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); // Go to camera
// tell the camera where to save the image.
intent.putExtra(MediaStore.EXTRA_OUTPUT, pictureUri);
// tell the camera to request WRITE permission.
intent.setFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
startActivityForResult(intent, CAMERA_REQUEST_CODE);
}
public void invokeCamera1() {
// get a file reference
pictureUri = FileProvider.getUriForFile(this, getApplicationContext().getPackageName(), createImageFile()); // Make Uri file example file://storage/emulated/0/Pictures/Civil_ID20180924_180619.jpg
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); // Go to camera
// tell the camera where to save the image.
intent.putExtra(MediaStore.EXTRA_OUTPUT, pictureUri);
// tell the camera to request WRITE permission.
intent.setFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
startActivityForResult(intent, CAMERA_REQUEST_CODE1);
}
// To create image file in pictures directory
public File createImageFile() {
// the public picture director
File picturesDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES); // To get pictures directory from android system
// timestamp makes unique name.
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd_HHmmss");
String timestamp = sdf.format(new Date());
// put together the directory and the timestamp to make a unique image location.
File imageFile = new File(picturesDirectory, timestamp + ".jpg");
return imageFile;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent
data) {
super.onActivityResult(requestCode, resultCode, data);
if(resultCode == RESULT_OK) // resultCode: -1
{
if(requestCode == CAMERA_REQUEST_CODE ) // requestCode: 288
{
Uri picUri = pictureUri;
startCropImageActivity(picUri);
Toast.makeText(MainActivity.this, "Image 1 save",
Toast.LENGTH_SHORT).show();
}
if(requestCode == CAMERA_REQUEST_CODE1)
{
Uri picUri = pictureUri;
startCropImageActivity(picUri);
Toast.makeText(MainActivity.this, "Image 2 save",
Toast.LENGTH_SHORT).show();
}
}
if(requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE)
{
CropImage.ActivityResult result = CropImage.getActivityResult(data);
if(resultCode == RESULT_OK)
{
Croppedimage(result, iv); // my problem !
/*
* Here i want to use if or switch statement to can use iv1
for second camera button! HOW?
*
* example
*
* if(for first camera button)
* {
* Croppedimage(result, iv);
* }
*
* if(for second camera button)
* {
* Croppedimage(result, iv1);
* }
*
* */
}
else if(resultCode ==
CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE)
{
// if there is any error show it
Exception error = result.getError();
Toast.makeText(this, "" + error, Toast.LENGTH_LONG).show();
}
}
}
private void startCropImageActivity(Uri imageUri) {
CropImage.activity(imageUri)
.setGuidelines(CropImageView.Guidelines.ON)
.setMultiTouchEnabled(true)
.start(this);
}
public void Croppedimage(CropImage.ActivityResult result,ImageView iv)
{
Uri resultUri = null; // get image uri
if (result != null) {
resultUri = result.getUri();
}
//set image to image view
iv.setImageURI(resultUri);
}
裁剪图像功能
public void invokeCamera() {
// get a file reference
pictureUri = FileProvider.getUriForFile(this, getApplicationContext().getPackageName(), createImageFile()); // Make Uri file example file://storage/emulated/0/Pictures/Civil_ID20180924_180619.jpg
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); // Go to camera
// tell the camera where to save the image.
intent.putExtra(MediaStore.EXTRA_OUTPUT, pictureUri);
// tell the camera to request WRITE permission.
intent.setFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
startActivityForResult(intent, CAMERA_REQUEST_CODE);
}
public void invokeCamera1() {
// get a file reference
pictureUri = FileProvider.getUriForFile(this, getApplicationContext().getPackageName(), createImageFile()); // Make Uri file example file://storage/emulated/0/Pictures/Civil_ID20180924_180619.jpg
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); // Go to camera
// tell the camera where to save the image.
intent.putExtra(MediaStore.EXTRA_OUTPUT, pictureUri);
// tell the camera to request WRITE permission.
intent.setFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
startActivityForResult(intent, CAMERA_REQUEST_CODE1);
}
// To create image file in pictures directory
public File createImageFile() {
// the public picture director
File picturesDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES); // To get pictures directory from android system
// timestamp makes unique name.
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd_HHmmss");
String timestamp = sdf.format(new Date());
// put together the directory and the timestamp to make a unique image location.
File imageFile = new File(picturesDirectory, timestamp + ".jpg");
return imageFile;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent
data) {
super.onActivityResult(requestCode, resultCode, data);
if(resultCode == RESULT_OK) // resultCode: -1
{
if(requestCode == CAMERA_REQUEST_CODE ) // requestCode: 288
{
Uri picUri = pictureUri;
startCropImageActivity(picUri);
Toast.makeText(MainActivity.this, "Image 1 save",
Toast.LENGTH_SHORT).show();
}
if(requestCode == CAMERA_REQUEST_CODE1)
{
Uri picUri = pictureUri;
startCropImageActivity(picUri);
Toast.makeText(MainActivity.this, "Image 2 save",
Toast.LENGTH_SHORT).show();
}
}
if(requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE)
{
CropImage.ActivityResult result = CropImage.getActivityResult(data);
if(resultCode == RESULT_OK)
{
Croppedimage(result, iv); // my problem !
/*
* Here i want to use if or switch statement to can use iv1
for second camera button! HOW?
*
* example
*
* if(for first camera button)
* {
* Croppedimage(result, iv);
* }
*
* if(for second camera button)
* {
* Croppedimage(result, iv1);
* }
*
* */
}
else if(resultCode ==
CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE)
{
// if there is any error show it
Exception error = result.getError();
Toast.makeText(this, "" + error, Toast.LENGTH_LONG).show();
}
}
}
private void startCropImageActivity(Uri imageUri) {
CropImage.activity(imageUri)
.setGuidelines(CropImageView.Guidelines.ON)
.setMultiTouchEnabled(true)
.start(this);
}
public void Croppedimage(CropImage.ActivityResult result,ImageView iv)
{
Uri resultUri = null; // get image uri
if (result != null) {
resultUri = result.getUri();
}
//set image to image view
iv.setImageURI(resultUri);
}
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问题
在第一个Imageview
中设置的第二个按钮的裁剪图像。
需要在第二个摄像头的按钮的onActivityResult
中找到到达iv1
的方法
有什么建议吗
谢谢 查看我在GitHub respository上发现的问题（与您的问题类似），您可以在启动crop活动时设置自定义请求代码
因此，您可以使用两个不同的请求代码启动活动，并检查哪一个已在ActivityResult上使用
private static final RC_CROP = 100;
private static final RC_CROP1 = 200;
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) // resultCode: -1
{
if (requestCode == CAMERA_REQUEST_CODE) // requestCode: 288
{
Uri picUri = pictureUri;
startCropImageActivity(picUri, RC_CROP);
Toast.makeText(MainActivity.this, "Image 1 save",
Toast.LENGTH_SHORT).show();
}
if (requestCode == CAMERA_REQUEST_CODE1) {
Uri picUri = pictureUri;
startCropImageActivity(picUri, RC_CROP1);
Toast.makeText(MainActivity.this, "Image 2 save",
Toast.LENGTH_SHORT).show();
}
if (requestCode == RC_CROP) {
CropImage.ActivityResult result = CropImage.getActivityResult(data);
//put image on first ImageView
}
if (requestCode == RC_CROP1) {
CropImage.ActivityResult result = CropImage.getActivityResult(data);
//put image on second ImageView
}
} else if (resultCode == CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE) {
// if there is any error show it
Exception error = result.getError();
Toast.makeText(this, "" + error, Toast.LENGTH_LONG).show();
}
}
private void startCropImageActivity(Uri imageUri, int requestCode) {
Intent vCropIntent = CropImage.activity(imageUri)
.setGuidelines(CropImageView.Guidelines.ON)
.setMultiTouchEnabled(true)
.getIntent(this);
startActivityForResult(vCropIntent, requestCode)
}
我还建议在检查requestCode时使用switch语句