我使用了这个代码来使用安卓内置的图像裁剪工具。我的代码如下:
public void takePicture(){
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager()) != null){
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, MediaStore.Images.Media.EXTERNAL_CONTENT_URI.toString());
takePictureIntent.putExtra("crop", "true");
takePictureIntent.putExtra("aspectX", 0);
takePictureIntent.putExtra("aspectY", 0);
takePictureIntent.putExtra("outputX", 200);
takePictureIntent.putExtra("outputY", 150);
takePictureIntent.putExtra("return-data", true);
startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
}
}
protected void onActivityResult(int requestCode, int resultCode, Intent data){
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap imageBitmap = (Bitmap) extras.get("data");
imageViewImage.setImageBitmap(imageBitmap);
}
}
在按钮的点击监听器中调用takePicture。我可以打开安卓相机拍照,保存图片后显示在我的imageView上。但是没有出现裁剪界面,imageView上的图片看起来很糟糕。它的质量就像被像素化了一样。我做错了什么吗?我使用三星galaxy tab 3测试我的应用程序。
编辑:使用下面的答案……仍然不工作
protected void onActivityResult(int requestCode, int resultCode, Intent data){
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Log.d("onActivityResult", "Inside on activity for result");
Bitmap imageBitmap = (Bitmap) extras.get("data");
imageViewImage.setImageBitmap(imageBitmap);
fileUri = getImageUri(this, imageBitmap);χ
cropImage();
}else if (requestCode == REQUEST_IMAGE_CROP && resultCode == RESULT_OK){
Bundle extras = data.getExtras();
Bitmap imageBitmap = (Bitmap)extras.get("data");
imageViewImage.setImageBitmap(imageBitmap);
}
}
public void takePicture(){
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager()) != null){
startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
}
}
public void cropImage() {
try {
Intent cropIntent = new Intent("com.android.camera.action.CROP");
cropIntent.setDataAndType(fileUri, "image/*");
cropIntent.putExtra("crop", "true");
cropIntent.putExtra("aspectX", 1);
cropIntent.putExtra("aspectY", 1);
cropIntent.putExtra("outputX", 128);
cropIntent.putExtra("outputY", 128);
cropIntent.putExtra("return-data", true);
startActivityForResult(cropIntent, REQUEST_IMAGE_CROP);
}
// respond to users whose devices do not support the crop action
catch (ActivityNotFoundException anfe) {
// display an error message
String errorMessage = "Whoops - your device doesn't support the crop action!";
Toast toast = Toast.makeText(this, errorMessage, Toast.LENGTH_SHORT);
toast.show();
}
}
public Uri getImageUri(Context inContext, Bitmap inImage) {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
inImage.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
String path = MediaStore.Images.Media.insertImage(inContext.getContentResolver(), inImage, "Title", null);
return Uri.parse(path);
}
CROP
Intent
。有许多适用于Android的图像裁剪库,请使用其中之一。 - CommonsWare