android资源选择器URI路径问题

http://blog.csdn.net/huangyanan1989/article/details/17263203#

方式一：

// try {
// if (resultCode != RESULT_OK) {
// return;
// } else if (requestCode == IMAGE_CODE && resultCode == RESULT_OK) {
// Uri uriVideo = data.getData();
// Cursor cursor = this.getContentResolver().query(uriVideo, null,
// null, null, null);
// if (cursor.moveToNext()) {
// String filePath = cursor.getString(cursor
// .getColumnIndex("_data"));
// edt_upload_file.setText(filePath);
// }
// }
// } catch (Exception e) {
// e.printStackTrace();
// }

方式二：

//方式二
// try {
// if (resultCode != RESULT_OK) {
// return;
// } else if (requestCode == IMAGE_CODE && resultCode == RESULT_OK) {
// Uri selectedVideoUri = data.getData();
// String s1 = data.getDataString();
// String selectedVideoPath = getPath(selectedVideoUri);
// if(selectedVideoPath==null && s1 != null)
// {
// selectedVideoPath = s1.replaceAll("file://","");
// }
// edt_upload_file.setText(selectedVideoPath);
// }
// }catch (Exception e) {
// e.printStackTrace();
// }

方式三：
//方式三
// Uri contentUri = data.getData();String filePath = null;
// if(android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.KITKAT){
// String wholeID = DocumentsContract.getDocumentId(contentUri);
// String id = wholeID.split(":")[1];
// String[] column = { MediaStore.Images.Media.DATA };
// String sel = MediaStore.Images.Media._ID + "=?";
// Cursor cursor = getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, column,
// sel, new String[] { id }, null);
// int columnIndex = cursor.getColumnIndex(column[0]);
// if (cursor.moveToFirst()) {
// filePath = cursor.getString(columnIndex);
// }
// cursor.close();
// }else{
// String[] projection = { MediaStore.Images.Media.DATA };
// Cursor cursor = getContentResolver().query(contentUri, projection, null, null, null);
// int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
// cursor.moveToFirst();
// filePath = cursor.getString(column_index);
// }
// edt_upload_file.setText(filePath);

方式四：
//方式四
Uri contentUri = data.getData();
String filePath = VideoSelect.getPath(this, contentUri);
edt_upload_file.setText(filePath);

package com.handsight.launcher.ui;

import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;

public class VideoSelect {
/**
* Get a file path from a Uri. This will get the the path for Storage Access
* Framework Documents, as well as the _data field for the MediaStore and
* other file-based ContentProviders.
*
* @param context The context.
* @param uri The Uri to query.
* @author paulburke
*/
public static String getPath(final Context context, final Uri uri) {

final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;

// DocumentProvider
if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
// ExternalStorageProvider
if (isExternalStorageDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];

if ("primary".equalsIgnoreCase(type)) {
return Environment.getExternalStorageDirectory() + "/" + split[1];
}

// TODO handle non-primary volumes
}
// DownloadsProvider
else if (isDownloadsDocument(uri)) {

final String id = DocumentsContract.getDocumentId(uri);
final Uri contentUri = ContentUris.withAppendedId(
Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));

return getDataColumn(context, contentUri, null, null);
}
// MediaProvider
else if (isMediaDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];

Uri contentUri = null;
if ("image".equals(type)) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
} else if ("video".equals(type)) {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
} else if ("audio".equals(type)) {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}

final String selection = "_id=?";
final String[] selectionArgs = new String[] {
split[1]
};

return getDataColumn(context, contentUri, selection, selectionArgs);
}
}
// MediaStore (and general)
else if ("content".equalsIgnoreCase(uri.getScheme())) {
return getDataColumn(context, uri, null, null);
}
// File
else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}

return null;
}

/**
* Get the value of the data column for this Uri. This is useful for
* MediaStore Uris, and other file-based ContentProviders.
*
* @param context The context.
* @param uri The Uri to query.
* @param selection (Optional) Filter used in the query.
* @param selectionArgs (Optional) Selection arguments used in the query.
* @return The value of the _data column, which is typically a file path.
*/
public static String getDataColumn(Context context, Uri uri, String selection,
String[] selectionArgs) {

Cursor cursor = null;
final String column = "_data";
final String[] projection = {
column
};

try {
cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
null);
if (cursor != null && cursor.moveToFirst()) {
final int column_index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(column_index);
}
} finally {
if (cursor != null)
cursor.close();
}
return null;
}

/**
* @param uri The Uri to check.
* @return Whether the Uri authority is ExternalStorageProvider.
*/
public static boolean isExternalStorageDocument(Uri uri) {
return "com.android.externalstorage.documents".equals(uri.getAuthority());
}

/**
* @param uri The Uri to check.
* @return Whether the Uri authority is DownloadsProvider.
*/
public static boolean isDownloadsDocument(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}

/**
* @param uri The Uri to check.
* @return Whether the Uri authority is MediaProvider.
*/
public static boolean isMediaDocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri.getAuthority());
}
}

方式四最全面： 所有问题都考虑到了