okhttp3在Fragment中的使用

快来打我* 2022-03-25 05:52 272阅读 0赞

由于okhttp3的异步请求，需要开启线程，之前在activity中都是直接调用UI线程，可是发现在fragment中不行，现在记录下代码：

//上传文件
    MultipartBody requestBody = new MultipartBody.Builder()
            .setType(MultipartBody.FORM)
            // .addFormDataPart("name", "庄贺文")
            .addFormDataPart("user_id", ""+user_id)
            .addFormDataPart("token", token)
            .addFormDataPart("file1", "file1.jpg", RequestBody.create(MediaType.parse("application/octet-stream"), file1))
            .addFormDataPart("file2", "file2.jpg", RequestBody.create(MediaType.parse("application/octet-stream"), file2))
            .addFormDataPart("file3", "file3.jpg", RequestBody.create(MediaType.parse("application/octet-stream"), file3))
             .build();
    String url = ConstantsUrl.OWNERAPPLY_URL;
    Request request =
            new Request.Builder()
                    .url(url)
                    .post(requestBody)
                    .build();
    
    // 3、将request封装为call，是单个请求的执行者
    Call call = client.newCall(request);
    // 4、执行call（异步和同步）
    // call.execute();
    call.enqueue(new Callback() {
        @Override
        public void onFailure(Call call, IOException e) {
            Log.e("111", "服务器未连接");
        }
    
        @Override
        public void onResponse(Call call, Response response) throws IOException {
       
            //得到服务器返回的具体内容
            final String res = response.body().string();
            Log.e("服务器发送数据", res);
    
            runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    Intent intent = null;
                    switch (res) {
                        case "上传成功":
                            Toast.makeText(OwnerApplyActivity.this, "上传成功，等待审核通过", Toast.LENGTH_SHORT)
                                    .show();
                            intent = new Intent(OwnerApplyActivity.this, MainActivity.class);
                            startActivity(intent);
                            break;
    
                        default:
                            Toast.makeText(OwnerApplyActivity.this, "上传失败", Toast.LENGTH_SHORT)
                                    .show();
    
                            break;
                    }
                }
            });
        }
    });