需要裁剪圖像的最佳方式嘗試了一些方法，但它沒有給我正確裁剪的選項(xiàng)，如果你可以請(qǐng)幫我提供示例和裁剪圖像的最佳方法private void selectFile() { Intent img = new Intent(Intent.ACTION_OPEN_DOCUMENT); img.setType("image/*"); startActivityForResult(i, 3000);}--- Mohammed --- 裁剪后如何獲取Uri Uri uri = data.getData(); getContentResolver().takePersistableUriPermission(Objects.requireNonNull(uri), Intent.FLAG_GRANT_READ_URI_PERMISSION); stickerPack.addSticker(uri, this); } finish(); startActivity(getIntent()); }
1 回答
富國滬深
TA貢獻(xiàn)1790條經(jīng)驗(yàn) 獲得超9個(gè)贊
您可以使用默認(rèn)的 android Crop 功能
int PICK_IMAGE_REQUEST = 100;
int PIC_CROP = 1;
void chooseImageFromGallery() {
if (isPermissionsGranted(Manifest.permission.READ_EXTERNAL_STORAGE)) {
Intent intent = new Intent(Intent.ACTION_PICK,
MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(Intent.createChooser(intent, "Select Picture"), PICK_IMAGE_REQUEST);
} else {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
requestPermissions(arrayOf(Manifest.permission.READ_EXTERNAL_STORAGE),
PICK_IMAGE_REQUEST);
}
}
}
@Override void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults)
if (requestCode == PICK_IMAGE_REQUEST && grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED ) {
chooseImageFromGallery()
}
}
@Override void onActivityResult(Int requestCode, Int resultCode, Intent data) {
if (resultCode == Activity.RESULT_OK && requestCode == PICK_IMAGE_REQUEST) {
Uri imageUri = data?.data
performCrop(imageUri)
}else if(resultCode == Activity.RESULT_OK && requestCode == PIC_CROP){
// get the returned data
Bundle extras = data.getExtras();
// get the cropped bitmap
Bitmap selectedBitmap = extras.getParcelable("data");
imgView.setImageBitmap(selectedBitmap);
}
}
private void performCrop(Uri picUri) {
try {
Intent cropIntent = new Intent("com.android.camera.action.CROP");
// indicate image type and Uri
cropIntent.setDataAndType(picUri, "image/*");
// set crop properties here
cropIntent.putExtra("crop", true);
// indicate aspect of desired crop
cropIntent.putExtra("aspectX", 1);
cropIntent.putExtra("aspectY", 1);
// indicate output X and Y
cropIntent.putExtra("outputX", 128);
cropIntent.putExtra("outputY", 128);
// retrieve data on return
cropIntent.putExtra("return-data", true);
// start the activity - we handle returning in onActivityResult
startActivityForResult(cropIntent, PIC_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();
}
}
或者您可以使用任何庫來選擇和裁剪圖像，請(qǐng)檢查這些庫
https://github.com/ArthurHub/Android-Image-Cropper
https://github.com/Yalantis/uCrop
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