public class fingerp extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_fingerp, container, false);
return rootView;
}
}
這個ID與按鈕錯誤findViewById想盡一切
String root = Environment.getExternalStorageDirectory().toString();
File myDir = new File(root + "/documents");
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
myDir.mkdirs();
EditText edit = (EditText)findViewById(R.id.editText);
String edt = edit.getText().toString();
File file = new File (myDir,edt);
}
這是在Android的外部存儲保存的文件夾,我來自用戶採取的文件夾名稱輸入,並使用我的標籤查看現在用這個說法↓
EditText edit = (EditText)findViewById(R.id.editText);
String edt = edit.getText().toString();
但findViewById是給了一個錯誤
請發佈錯誤stacktrace – Lino
請發佈您的錯誤日誌。 –