【发布时间】:2016-04-19 06:21:38
【问题描述】:
我正在尝试通过调用意图 ACTION_GET_CONTENT 来获取用户选择的文件的路径。
问题是从文件管理器中选择音频文件时,意图不返回文件的扩展名(我检查过的文件名中有)。在视频或图像的情况下,它工作正常。
代码如下:
意图调用:
Intent intent = getIntent();
if(intent.getAction() == null) {
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT)
intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
else
intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("*/*");
intent.addCategory(Intent.CATEGORY_OPENABLE);
startActivityForResult(Intent.createChooser(intent, "Select a File to Upload"),CloudConstants.CLOUD_REQUEST_FILE_CHOOSER);
关于结果代码:
if (data != null) {
//Get URI Data from Intent - URI is of the file chosen by the User in the
//File picker
uriFileURI = data.getData();
if(uriFileURI != null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
final int intFlags = data.getFlags()&(Intent.FLAG_GRANT_READ_URI_PERMISSION|Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
getContentResolver().takePersistableUriPermission(data.getData(), intFlags);
}
//Check if URI was returned or not; NULL is returned if file was chosen from
//via gallery share option
//In such a case, the URI is retrieved from ClipData object of the Intent
if (uriFileURI == null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN && data.getClipData().getItemCount() > 0)
uriFileURI = data.getClipData().getItemAt(0).getUri();
//Log File URI
Log.i("CloudMedia", "File Uri: " + String.valueOf(uriFileURI));
//Generate Absolute File name to publish on Title
strFileName = getFileInformation(uriFileURI, MediaStore.Files.FileColumns.DISPLAY_NAME);
获取文件信息功能:
public String getFileInformation(Uri strFileURI, String strProjection) {
Cursor cursorFileId = getContentResolver().query(strFileURI,
new String[] {
strProjection
}, null, null, null);
if(cursorFileId.moveToFirst()) {
return cursorFileId.getString(cursorFileId.getColumnIndex(strProjection));
} else
return null;
}
所以strFileName 不包含所选音频文件的扩展名。
我也想要音频文件扩展名。
【问题讨论】:
标签: java android android-intent