使用Android自带文件选择器
工具类:
public class UriTofilePath { public static String getFilePathByUri(Context context, Uri uri) { String path = null; // 4.4及之后的 是以 content:// 开头的,比如 content://com.android.providers.media.documents/document/image%3A235700 if (ContentResolver.SCHEME_CONTENT.equals(uri.getScheme()) && Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { if (DocumentsContract.isDocumentUri(context, uri)) { if (isExternalStorageDocument(uri)) { // ExternalStorageProvider final String docId = DocumentsContract.getDocumentId(uri); final String[] split = docId.split(":"); final String type = split[0]; if ("primary".equalsIgnoreCase(type)) { path = Environment.getExternalStorageDirectory() + "/" + split[1]; return path; } } else if (isDownloadsDocument(uri)) { // DownloadsProvider final String id = DocumentsContract.getDocumentId(uri); final Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(id)); path = getDataColumn(context, contentUri, null, null); return path; } else if (isMediaDocument(uri)) { // MediaProvider 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]}; path = getDataColumn(context, contentUri, selection, selectionArgs); return path; } } }else { // 以 file:// 开头的 if (ContentResolver.SCHEME_FILE.equals(uri.getScheme())) { path = uri.getPath(); return path; } // 以 content:// 开头的,比如 content://media/extenral/images/media/17766 if (ContentResolver.SCHEME_CONTENT.equals(uri.getScheme()) && Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) { Cursor cursor = context.getContentResolver().query(uri, new String[]{MediaStore.Images.Media.DATA}, null, null, null); if (cursor != null) { if (cursor.moveToFirst()) { int columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA); if (columnIndex > -1) { path = cursor.getString(columnIndex); } } cursor.close(); } return path; } } return null; } private 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; } private static boolean isExternalStorageDocument(Uri uri) { return "com.android.externalstorage.documents".equals(uri.getAuthority()); } private static boolean isDownloadsDocument(Uri uri) { return "com.android.providers.downloads.documents".equals(uri.getAuthority()); } private static boolean isMediaDocument(Uri uri) { return "com.android.providers.media.documents".equals(uri.getAuthority()); } }
Activity内代码:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent intent1 = new Intent(Intent.ACTION_GET_CONTENT);
intent1.addCategory(Intent.CATEGORY_OPENABLE);
intent1.setType("*/*");
Intent chooser = new Intent(Intent.ACTION_CHOOSER);
chooser.putExtra(Intent.EXTRA_TITLE, "File Chooser");
chooser.putExtra(Intent.EXTRA_INTENT, intent1);
startActivityForResult(chooser, 1);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 1) {
Uri result = data.getData();
Toast.makeText(this,new UriTofilePath().getFilePathByUri(this,result),Toast.LENGTH_SHORT).show();
}
return;
}
本文来自博客园,作者:DanicaStarrr,转载请注明原文链接:https://www.cnblogs.com/hazjblog/p/adusesysfileseler.html