谷歌照片与图库 - 意图选择器
The*_*ter 5 camera android android-intent android-photos
在我的应用中,我允许用户从他们的图库中选择个人资料图片,如下所示:
当您单击第一个选项时,在我的Android 5.0设备上,我得到了这个:
如果我使用基于AOSP项目的普通图库应用程序,一切正常,花花公子.但是,Photo的应用似乎使用了不同的意图.
以下是我处理普通图库代码的方法:
Intent photoPickerIntent = new Intent(
Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
photoPickerIntent.setType("image/*");
photoPickerIntent.putExtra("crop", "true");
photoPickerIntent.putExtra("outputX", 300);
photoPickerIntent.putExtra("outputY", 300);
photoPickerIntent.putExtra("aspectX", 1);
photoPickerIntent.putExtra("aspectY", 1);
photoPickerIntent.putExtra("scale", true);
photoPickerIntent.putExtra(MediaStore.EXTRA_OUTPUT, getTempUri());
photoPickerIntent.putExtra("outputFormat",
Bitmap.CompressFormat.JPEG.toString());
startActivityForResult(photoPickerIntent, RESULT_LOAD_IMAGE);
然后是意图结果处理程序:
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == RESULT_LOAD_IMAGE
&& resultCode == Activity.RESULT_OK) {
if (data != null) {
tempFile = getTempFile();
filePath = Environment.getExternalStorageDirectory() + "/"
+ "temporary_holder.jpg";
Log.d("LOAD REQUEST filePath", filePath);
Bitmap selectedImage = BitmapFactory.decodeFile(filePath);
iPP.setImageBitmap(selectedImage);
}
imagePath = filePath;
new UploadImage().execute();
}
}
上面的一些辅助函数:
private static Uri getTempUri() {
return Uri.fromFile(getTempFile());
}
private static File getTempFile() {
if (Environment.getExternalStorageState().equals(
Environment.MEDIA_MOUNTED)) {
File file = new File(Environment.getExternalStorageDirectory(),
"temporary_holder.jpg");
try {
file.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}
return file;
}
return null;
}
其中一些可能不需要显示,但我把它包括在内以防它干扰.
当我使用Google相册选择照片时,我的ImageView是空白的(而不是填充选定的选择).图像未被选中,我无法进入手动裁剪视图,就像我使用图库设置一样. 所以基本上没有任何反应.
响应答案的新规范
photoPickerIntent = new Intent(Intent.ACTION_GET_CONTENT);
photoPickerIntent.setType("image/*");
photoPickerIntent.putExtra("crop", "true");
photoPickerIntent.putExtra("outputX", 300);
photoPickerIntent.putExtra("outputY", 300);
photoPickerIntent.putExtra("aspectX", 1);
photoPickerIntent.putExtra("aspectY", 1);
photoPickerIntent.putExtra("scale", true);
photoPickerIntent.putExtra(MediaStore.EXTRA_OUTPUT, getTempUri());
photoPickerIntent.putExtra("outputFormat",
Bitmap.CompressFormat.JPEG.toString());
startActivityForResult(photoPickerIntent, RESULT_LOAD_IMAGE);
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == Activity.RESULT_OK) {
if (data != null) {
Log.i("data", data.toString());
switch (requestCode) {
case RESULT_LOAD_IMAGE:
Log.i("RESULT_LOAD_IMAGE", "MARK");
// Received an image from the picker, now send an Intent for cropping
final String CROP_ACTION = "com.android.camera.action.CROP";
Intent photoCropIntent = new Intent(CROP_ACTION);
photoCropIntent.putExtra("crop", "true");
photoCropIntent.putExtra("aspectX", 1);
photoCropIntent.putExtra("aspectY", 1);
photoCropIntent.putExtra("outputX", 300);
photoCropIntent.putExtra("outputY", 300);
photoCropIntent.putExtra(MediaStore.EXTRA_OUTPUT, getTempUri());
photoCropIntent.putExtra("outputFormat",
Bitmap.CompressFormat.JPEG.toString());
photoCropIntent.setData(data.getData());
startActivityForResult(photoPickerIntent, RESULT_CROP_IMAGE);
break;
case RESULT_CROP_IMAGE:
Log.i("RESULT_CROP_IMAGE", "MARK");
tempFile = getTempFile();
imagePath = Environment.getExternalStorageDirectory() + "/" + "temporary_holder.jpg";
Log.i("imagePath", imagePath);
Uri selectedImageURI = data.getData();
InputStream image_stream;
try {
image_stream = getActivity().getContentResolver().openInputStream(selectedImageURI);
Bitmap bitmap = BitmapFactory.decodeStream(image_stream);
iPP.setImageBitmap(bitmap);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
new UploadImage().execute();
break;
default:
// Handle default case
}
}
}
}
上面的代码也没有用.我试着使它类似于下面的答案.会发生什么:
我点击"从图库中选择".而且它不再给我一个选择,现在它直接从库存库开放(这不是什么大不了的事).我点击图片,它似乎intent再次开始相同- 它带回了画廊,希望我选择另一个图像:而不是裁剪Activity.然后在第二次之后,它将ImageView使用所选文件设置我.
解
首先,更新photoPickerIntent要使用的ACTION_GET_CONTENT,并删除与裁剪相关的额外内容,因为裁剪将在Intent稍后由另一个处理:
Intent photoPickerIntent = new Intent(Intent.ACTION_GET_CONTENT);
photoPickerIntent.setType("image/*");
// Do not include the extras related to cropping here;
// this Intent is for selecting the image only.
startActivityForResult(photoPickerIntent, RESULT_LOAD_IMAGE);
然后,onActivityResult()将必须处理两个结果:RESULT_LOAD_IMAGE将为裁剪发送另一个意图,RESULT_CROP_IMAGE并将继续像以前一样处理:
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == Activity.RESULT_OK) {
if (data != null) {
switch (requestCode) {
case RESULT_LOAD_IMAGE:
// Received an image from the picker, now send an Intent for cropping
final String CROP_ACTION = "com.android.camera.action.CROP";
Intent photoCropIntent = new Intent(CROP_ACTION);
photoCropIntent.setData(data.getData());
// TODO: first get this running without extras, then test each one here
startActivityForResult(photoCropIntent, RESULT_CROP_IMAGE);
break;
case RESULT_CROP_IMAGE:
// Received the cropped image, continue processing. Note that this
// is just copied and pasted from your question and may have
// omissions.
tempFile = getTempFile();
filePath = Environment.getExternalStorageDirectory() + "/"
+ "temporary_holder.jpg";
Log.d("LOAD REQUEST filePath", filePath);
Bitmap selectedImage = BitmapFactory.decodeFile(filePath);
iPP.setImageBitmap(selectedImage);
imagePath = filePath;
new UploadImage().execute();
break;
default:
// Handle default case
}
}
}
请注意,虽然我已经测试了此代码的一部分,但我还没有在运行时测试整个代码块.但是,如果它开箱即用,它应该非常接近.如果您有任何问题或疑问,请发表评论,我会相应更新我的答案.
背景
在com.android.gallery3d安装了AOSP Gallery2()和Photos 的Android 5.0.1(API 21)设备上,我运行了你的Intent.我被提示在图库或照片之间进行选择.
当我选择照片时,会出现一个选择器,我选择了一个图像.我立刻回到了我的Activity身边,没有任何裁剪选择.
当我选择Gallery时,会出现一个选择器,然后我选择了一个图像.然后我被提示选择一个用于裁剪的应用程序. 照片和图库都作为裁剪选项提供.
选择Gallery时,这是有趣的日志输出:
// Send the Intent
3-07 15:20:10.347 719-817/? I/ActivityManager? Displayed android/com.android.internal.app.ResolverActivity: +127ms
// Choose Gallery
03-07 15:20:27.762 719-735/? I/ActivityManager? START u0 {act=android.intent.action.PICK typ=image/* flg=0x3000000 cmp=com.android.gallery3d/.app.GalleryActivity (has extras)} from uid 10084 on display 0
// (fixing highlighting after MIME type on previous line) */
03-07 15:20:27.814 22967-22967/? W/GalleryActivity? action PICK is not supported
03-07 15:20:27.814 22967-22967/? V/StateManager? startState class com.android.gallery3d.app.AlbumSetPage
03-07 15:20:27.967 719-817/? I/ActivityManager? Displayed com.android.gallery3d/.app.GalleryActivity: +190ms
// Pick an image
3-07 15:21:45.993 22967-22967/? V/StateManager? startStateForResult class com.android.gallery3d.app.AlbumPage, 1
03-07 15:21:46.011 22967-22967/? D/AlbumPage? onSyncDone: ********* result=0
03-07 15:21:46.034 22967-24132/? I/GLRootView? layout content pane 1080x1701 (compensation 0)
03-07 15:21:48.447 719-1609/? I/ActivityManager? START u0 {act=com.android.camera.action.CROP dat=content://media/external/images/media/1000 flg=0x2000000 cmp=android/com.android.internal.app.ResolverActivity (has extras)} from uid 10100 on display 0
首先,请注意W/GalleryActivity? action PICK is not supported.我不确定它为什么会起作用,但根据Dianne Hackborn的说法,"你应该考虑ACTION_PICK弃用.现代行动ACTION_GET_CONTENT得到更好的支持......" 我在上面的解决方案中已经解决了这个问题.
然而,好消息是,在选择图像后,.putExtra("crop", "true");Gallery会发送另一个图像Intent进行裁剪.日志清楚地显示了要使用的操作和数据.
我测试了这个裁剪意图,我被提示选择一个用于裁剪的应用程序,就像之前一样.同样,照片和图库都作为选项呈现,它们都带来了裁剪界面.
似乎虽然Photos支持裁剪Intent,但它只是忽略了与裁剪相关的额外内容ACTION_PICK,而Gallery Intent在选择图像后通过发送另一个来响应.无论如何,拥有工作裁剪的细节Intent会导致上述解决方案.
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