google voice recognition api android

When loading Google maps, the instructor said that the V3 version was used, so I searched for how to use V2 and how to apply for a key on the webpage. I asked my teacher how to use V3. I always thought I wanted to upgrade something. The instructor said that key is not required for V3, This is not nonsense. I know it too. But how to use it? Oh, my God, there's no place to find it. So we should try it with V2 first. Later we found that the differenc

1. First locate the debug keystore location: 2. In "cmd", type the following command: Keytool-list-alias androiddebugkey-keystore "C: \ Users \ itrue \. Android \ Debug. keystore"-storepass Android-keypass android If the system prompts that keytool cannot be found, add the bin directory in JDK to the environment variable. Obtain the authentication fing

1. You can see the default debug keystore in Eclise --> preference --> android --> bulid. Note that MD5 and SHA1 are no longer generated in the latest Android Eclipse version. 3. Click Credentials, select Public API Access, and enter the SHA1 in Eclipse and the Java package name of the program to be developed. Separate the SHA1 with the; sign in the middle