我不知道为什么会发生这种情况,但是我无法从Google照片提供商那里挑选图像。对API的测试27。
使用Action_get_content
如果我使用:
val intent = Intent(Intent.ACTION_GET_CONTENT)
intent.addCategory(Intent.CATEGORY_OPENABLE)
intent.type = "image/*"
- 我可以在提供商中看到Google照片
- 我可以浏览一些图片并选择它
- 然后,我被指示回提供者列表(不是我的应用程序),好像提供商坠毁在try-catch
当我打开照片提供商并浏览文件夹时,我会看到很多:
2019-03-02 12:04:15.164 17641-13395/? W/NetworkManagementSocketTagger: untagSocket(120) failed with errno -22
2019-03-02 12:04:22.528 13217-13217/? E/ResourceType: Style contains key with bad entry: 0x01010586
2019-03-02 12:04:22.535 13217-13217/? W/ResourceType: For resource 0x7f020366, entry index(870) is beyond type entryCount(468)
当我单击图片时,我会看到这些:
2019-03-02 12:04:34.150 13217-13217/? W/ResourceType: For resource 0x7f02036c, entry index(876) is beyond type entryCount(468)
2019-03-02 12:04:34.151 13217-13217/? W/ResourceType: For resource 0x7f02036c, entry index(876) is beyond type entryCount(468)
2019-03-02 12:04:34.229 2907-16891/? W/MediaExtractor: FAILED to autodetect media content.
2019-03-02 12:04:34.569 10839-10839/? W/ResourceType: ResTable_typeSpec entry count inconsistent: given 468, previously 1330
使用Action_open_document
在这种情况下,我什至没有在提供商抽屉中看到Google照片。
问题
最好使用Action_get_content?
编辑2
我想我找到了问题的解决方案。在Google文档中提到,访问共享文件将为您提供 uri 。
服务器应用以意图将文件的内容URI发送回客户端应用。该意图以其OnActivityResult()的覆盖范围传递给客户端应用程序。客户端应用程序具有文件的内容URI后,它可以通过获取备案的字样访问文件。
下面是我使用的更新代码 onActivityResult 。确保终于调用 super 最终的方法。
super.onactivityResult(请求代码,结果代码,数据)
工作代码
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
data?.data?.let {
util._log(TAG, it.toString())
}
if (data!!.data != null && data.data != null) {
try {
val stream = if (data.data!!.toString().contains("com.google.android.apps.photos.contentprovider")) {
val ff = contentResolver.openFileDescriptor(data.data!!, "r")
FileInputStream(ff?.fileDescriptor)
} else {
contentResolver.openInputStream(data.data!!)
}
val createFile = createImageFile()
util.copyInputStreamToFile(stream, createFile)
selectedImagePath = createFile.absolutePath
} catch (e: Exception) {
util._log(TAG, Log.getStackTraceString(e))
}
}
super.onActivityResult(requestCode, resultCode, data)
}
编辑
还检查此Stackoverflow Post
原始
我在Android Oreo 8.1.0(API 27)上使用它,在我的Redmi 6 Pro电话上工作正常。
您尚未发布 onActivityResult 方法可能是您需要进行一些修改的地方。我已经尝试了这两个
下面是我的代码段
val pickIntent = Intent(Intent.ACTION_VIEW)
pickIntent.type = "image/*"
pickIntent.action = Intent.ACTION_GET_CONTENT
pickIntent.addCategory(Intent.CATEGORY_OPENABLE)
startActivityForResult(pickIntent, SELECT_PICTURE)
和 onActivityResult 我像这样解析
if (data!!.data != null && data.data != null) {
try {
// CommonUtilities._Log(TAG, "Data Type " + data.getType());
if (!isFinishing) {
val inputStream = contentResolver.openInputStream(data.data!!)
val createFile = createImageFile()
copyInputStreamToFile(inputStream!!, createFile)
// CommonUtilities._Log(TAG, "File Path " + createFile.getAbsolutePath());
selectedImagePath = createFile.absolutePath
}
} catch (e: IOException) {
util._log(TAG, Log.getStackTraceString(e))
}
}
创建新文件
的方法@Throws(IOException::class)
private fun createImageFile(): File {
// Create an image file name
val timeStamp = SimpleDateFormat("yyyyMMdd_HHmmss", Locale.ENGLISH).format(Date())
val imageFileName = "yesqueen_" + timeStamp + "_"
val storageDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES)
return File.createTempFile(imageFileName, ".jpg", storageDir)
}
从InputStream读取
的方法fun copyInputStreamToFile(`in`: InputStream, file: File) {
var out: OutputStream? = null
try {
out = FileOutputStream(file)
val buf = ByteArray(1024)
var len: Int = 0
while (`in`.read(buf).apply { len = this } > 0) {
out.write(buf, 0, len)
}
/*while (`in`.read(buf).let {
len = it
true
}) {
out.write(buf, 0, len)
}*/
/* while ((len = `in`.read(buf)) > 0) {
out.write(buf, 0, len)
}*/
} catch (e: Exception) {
e.printStackTrace()
} finally {
try {
out?.close()
} catch (e: Exception) {
e.printStackTrace()
}
try {
`in`.close()
} catch (e: Exception) {
e.printStackTrace()
}
}
}
我已经使用此代码完成了。
val intent = Intent(Intent.ACTION_GET_CONTENT)
intent.addCategory(Intent.CATEGORY_OPENABLE)
intent.type = "image/*"
startActivityForResult(intent,100)
和结果
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
when (requestCode) {
100 -> {
if (resultCode == Activity.RESULT_OK) {
val bitmap = generateBitmap(this,data!!.data)
//TODO show bitmap to your View
showPicture(bitmap!!)
}
}
}
}
generateBitmap(context,uri)
kotlin中的方法
fun generateBitmap(context: Context, uri: Uri): Bitmap? {
var filePath = ""
var cursor: Cursor?
var columnIndex = 0
try {
val column = arrayOf(MediaStore.Images.Media.DATA)
val sel = arrayOf(MediaStore.Images.Media._ID + "=?")
if (uri.toString().startsWith("content://com.google.android.apps.photos.contentprovider")){
val content = this.contentResolver.openInputStream(uri) ?: return null
val pictureBitmap = BitmapFactory.decodeStream(content)
return pictureBitmap
} else {
filePath = ""
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
val wholeID = DocumentsContract.getDocumentId(uri)
val id = arrayOf(wholeID.split(":")[1])
cursor = context.contentResolver.query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, column, sel[0], id, null)
columnIndex = cursor.getColumnIndex(column[0])
if (cursor.moveToFirst()) {
filePath = cursor.getString(columnIndex)
}
cursor.close()
} else {
val cursorLoader = CursorLoader(context, uri, column, null, null, null)
val cursor = cursorLoader.loadInBackground()
if (cursor != null) {
var column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA)
cursor.moveToFirst()
filePath = cursor.getString(column_index)
}
}
//TODO generate bitmap from file path
return bitmap(filePath)
}
} catch (e: Exception) {
print(e.message)
}
return null
}
对于getBitMap,我从文件路径中使用了此方法
fun bitmap(path : String) : Bitmap{
val image = File(path)
val bmOptions = BitmapFactory.Options()
return BitmapFactory.decodeFile(image.absolutePath, bmOptions)
}
我遇到了同样的问题,我无法从Google Photos中获得ACTION_GET_CONTENT
意图的图像URI。问题与我的活动的launchMode
有关。我找不到对Android文档的任何引用。但是,问题完全解决了:
我有一个活动应用程序,我的ACTION_GET_CONTENT
意图就是这样:
val intent = Intent(Intent.ACTION_GET_CONTENT).apply {
type = "image/*"
}
startActivityForResult(intent, GALLERY_RESULT)
问题是AndroidManifest.xml中的Activity定义中的singleInstance
启动模式。
<activity
android:name=".ui.MainActivity"
android:configChanges="orientation"
android:launchMode="singleInstance"
android:screenOrientation="portrait"
android:theme="@style/AppTheme"
android:windowSoftInputMode="adjustResize|stateHidden"/>
通过删除Android:启动模式线,解决了问题。如果您的活动需要是singleInstance
,则创建虚拟活动将是一个很好的解决方案。在这里,您可以启动一个虚拟活动以进行结果,然后在其onCreate
中进行意图,然后在setResult()
中进行您的请求活动:
class ImagePickerActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
val intent = Intent(Intent.ACTION_GET_CONTENT).apply {
type = "image/*"
}
if (intent.resolveActivity(packageManager!!) != null) {
startActivityForResult(intent, GALLERY_RESULT)
} else {
Toast.makeText(
this,
"No Gallery APP installed",
Toast.LENGTH_LONG
).show()
finish()
}
}
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
//here data is resulted URI from ACTION_GET_CONTENT
//and we pass it to our MainActivy using setResult
setResult(resultCode, data)
finish()
}
}
,这是您的主activity中的代码:
gallery.setOnClickListener {
startActivityForResult(
Intent(requireActivity(), ImagePickerActivity::class.java),
GALLERY_RESULT
)
}
action_pick 将提供选择图像的选项,您可以获取文件路径
Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Image.Media.EXTERNAL_CONTENT_URI);
intent.setType("image/*");
Intent sIntent = new Intent("com.sec.android.app.myfiles.PICK_DATA");
sIntent.addCategory(Intent.CATEGORY_DEFAULT);
sIntent.setType("image/*");
Intent chooserIntent;
if (getPackageManager().resolveActivity(sIntent, 0) != null) {
// it is device with samsung file manager
chooserIntent = Intent.createChooser(sIntent, "Select file");
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Intent[]{intent});
} else {
chooserIntent = Intent.createChooser(intent, "Select file");
}
try {
startActivityForResult(chooserIntent, REQUEST_TAKE_GALLERY_VIDEO);
} catch (android.content.ActivityNotFoundException ex) {
Toast.makeText(getApplicationContext(), "No suitable File Manager was found.", Toast.LENGTH_SHORT).show();
}