Android voice recognition (offline) considerations

Speech recognition:
Precautions to use: Mainfest.xml must remember permission to write in
21001: My case is not written Speechapp class, and need to register in application;
20005: No matching results
23300: Local engine error, my problem is the syntax error, missing a semicolon,,,, and debugging for a long time to find, and there will be no hint.

The cause of the engine error in general:

1, Java code Check your grammar file path, syntax ID and other related configuration;

2, grammar file syntax is correct, may have more semicolons, less semicolons, and so on, must be strictly in accordance with BNF syntax (most often appear);

Android voice recognition (offline) considerations