Tag：Machine is
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Retrofit2 low version compatibility problem
The version of my project depends on. The tester is an Android 7.0 device. Everything is normal implementation ‘com.squareup.retrofit2:retrofit-converters:2.9.0’ implementation ‘com.squareup.retrofit2:converter-gson:2.9.0′ However, the device we purchased is actually Android 4.4 (there is such a low version these days). When we request HTTP, we report an error, and trycatch doesn’t work well. The reason is that […]
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Welcome to chainlink
The word Oracle comes from Greek mythology. It refers to a person who communicates with gods, and they can see the vision of the future. In terms of blockchain, Oracle is a system that can answer external problems of Ethereum. Ideally, Oracle machines are trustless systems, which means they don’t need to rely on trust […]