android答题app，联网从天行网获取诗词问答题目，以及答题详细代码

首先，我们需要从天行网获取诗词问答题目。可以使用HTTP请求从天行网的API获取题目，如下所示：

String url = "http://api.tianapi.com/chengyu/index?key=yourkey";
OkHttpClient client = new OkHttpClient();
Request request = new Request.Builder()
        .url(url)
        .build();
Response response = client.newCall(request).execute();
String responseData = response.body().string();

其中，`yourkey`需要替换成你在天行网申请的API Key。

接着，我们需要解析JSON数据，获取题目和选项。可以使用Gson库来解析JSON数据，如下所示：

Gson gson = new Gson();
QuestionList questionList = gson.fromJson(responseData, QuestionList.class);
Question question = questionList.getQuestion();
String questionContent = question.getQuestion();
List<String> options = question.getOptions();

其中，`QuestionList`和`Question`是自定义的Java类，用于解析JSON数据。

最后，我们需要在Android应用中展示题目和选项，并且处理用户的答题行为。可以使用RecyclerView来展示选项，并在用户选择选项后判断答案的正确性，如下所示：

RecyclerView recyclerView = findViewById(R.id.optionsRecyclerView);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
OptionAdapter optionAdapter = new OptionAdapter(options);
optionAdapter.setOnItemClickListener(new OptionAdapter.OnItemClickListener() {
    @Override
    public void onItemClick(int position) {
        String selectedOption = options.get(position);
        if (selectedOption.equals(question.getAnswer())) {
            // 用户答对了
        } else {
            // 用户答错了
        }
    }
});
recyclerView.setAdapter(optionAdapter);

完整的答题代码如下所示：

public class MainActivity extends AppCompatActivity {
    private Question question;
    private List<String> options;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // 获取题目和选项
        try {
            String url = "http://api.tianapi.com/chengyu/index?key=yourkey";
            OkHttpClient client = new OkHttpClient();
            Request request = new Request.Builder()
                    .url(url)
                    .build();
            Response response = client.newCall(request).execute();
            String responseData = response.body().string();

            Gson gson = new Gson();
            QuestionList questionList = gson.fromJson(responseData, QuestionList.class);
            question = questionList.getQuestion();
            options = question.getOptions();

            // 展示题目和选项
            TextView questionTextView = findViewById(R.id.questionTextView);
            questionTextView.setText(question.getQuestion());
            RecyclerView recyclerView = findViewById(R.id.optionsRecyclerView);
            recyclerView.setLayoutManager(new LinearLayoutManager(this));
            OptionAdapter optionAdapter = new OptionAdapter(options);
            optionAdapter.setOnItemClickListener(new OptionAdapter.OnItemClickListener() {
                @Override
                public void onItemClick(int position) {
                    String selectedOption = options.get(position);
                    if (selectedOption.equals(question.getAnswer())) {
                        // 用户答对了
                    } else {
                        // 用户答错了
                    }
                }
            });
            recyclerView.setAdapter(optionAdapter);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

需要注意的是，上述代码只是一个简单的示例，实际情况下需要对异常进行处理、优化网络请求等。