我正在尝试从 Intent.ACTION_GET_CONTENT 访问文件,当我在我的设备(Android 8)上尝试它时,它工作得很好。但是,当我在朋友的设备(Android 10)上尝试它时,它不起作用。当我尝试从 Word 打开文件时,它一直显示“无法打开文件。请尝试将文件保存在设备上,然后打开它。”当我打开pdf文件时,它不显示任何内容,只是黑屏。
btn_add OnClick 监听器
btn_add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String[] mimeTypes = {"application/vnd.google-apps.document", "application/pdf", "application/vnd.google-apps.form",
"application/vnd.google-apps.presentation", "application/vnd.google-apps.spreadsheet",
"application/vnd.openxmlformats-officedocument.wordprocessingml.document",
"application/vnd.ms-excel", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
"application/x-excel"};
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY | Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION | Intent.FLAG_ACTIVITY_CLEAR_TOP);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
intent.setType(mimeTypes.length == 1 ? mimeTypes[0] : "*/*");
if (mimeTypes.length > 0) {
intent.putExtra(Intent.EXTRA_MIME_TYPES, mimeTypes);
}
} else {
String mimeTypesStr = "";
for (String mimeType : mimeTypes) {
mimeTypesStr += mimeType + "|";
}
intent.setType(mimeTypesStr.substring(0, mimeTypesStr.length() - 1));
} startActivityForResult(intent, 100);
}
});
活动结果
titleArrays = new ArrayList<>();
ItemAdapter adapter = new ItemAdapter(titleArrays);
RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
recyclerView.setAdapter(adapter);
Log.d("Id: ", ""+id);
hashMap.put(id, data.getData());
returnCursor =
getContentResolver().query(data.getData(), null, null, null, null);
nameIndex = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
returnCursor.moveToFirst();
titleHashmap.put(id, returnCursor.getString(nameIndex));
for (int i : hashMap.keySet()){
titleArrays.add(new ItemProperty(hashMap.get(i), titleHashmap.get(i)));
}
img_file.setImageResource(0);
id++;
// Item OnClick
adapter.setOnItemClickListener(new ItemAdapter.OnItemClickListener() {
@Override
public void onItemClick(int position) {
Log.d("Position: ", ""+position);
Intent intent = new Intent(Intent.ACTION_VIEW, titleArrays.get(position).getUri());
startActivity(intent);
}
});
我想知道我做错了什么。如果大家知道的话请告诉我。谢谢!