安卓设置Spinner默认选中项

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本文链接： https://blog.csdn.net/yuhang01/article/details/100733259

ps：因公司业务逻辑需要，需要将首页展示页面的产品型号在修改页面进行修改操作，所以就涉及到在修改页面中默认选中当前首页选中的spinner子项数值
因个人spinner数据的不同，还有懒，我就直接将主要的设置选中的代码沾上去

   private void initSpiner() {
        jingli = new ArrayList<>();
        xinghao = new ArrayList<>();
        productBeans = new ArrayList<>();
        humanBeans = new ArrayList<>();
        model.ledgJiekouEntityMutableLiveData().observe(this, new Observer<LedgJiekouEntity>() {//封装的网络请求
            @Override
            public void onChanged(@Nullable LedgJiekouEntity ledgJiekouEntity) {
                for(int i=0;i<ledgJiekouEntity.getProduct().size();i++){//将所有产品数据设置到spinner中
                    xinghao.add(ledgJiekouEntity.getProduct().get(i).getCinvstd()+ledgJiekouEntity.getProduct().get(i).getCinvname());
                    productBeans.add(new LedgJiekouEntity.ProductBean(ledgJiekouEntity.getProduct().get(i).getI_id(),ledgJiekouEntity.getProduct().get(i).getCinvname()));
                }
                adapter = new ArrayAdapter<String>(RepaireLedgerEdit.this,R.layout.spinneritem,xinghao);
                binding.ledgerEditProduct.setAdapter(adapter);//型号的设置完成

                for(int j=0;j<ledgJiekouEntity.getHuman().size();j++){//设置当前默认选中  -- 重点
                    jingli.add(ledgJiekouEntity.getHuman().get(j).getCpersonname());
                    humanBeans.add(new LedgJiekouEntity.HumanBean(ledgJiekouEntity.getHuman().get(j).getCpersoncode(),ledgJiekouEntity.getHuman().get(j).getCpersonname()));
                }
                jingAdapter = new ArrayAdapter<String>(RepaireLedgerEdit.this,R.layout.spinneritem,jingli);
                binding.ledgerEditJingl.setAdapter(jingAdapter);//经理设置完成

                for(int z=0;z<ledgJiekouEntity.getHuman().size();z++){//经理的默认选中状态
                    if(ledgJiekouEntity.getHuman().get(z).getCpersonname().equals(databeanlist.getPerson())){

                         binding.ledgerEditJingl.setSelection(z,true);
                         currenthuman = ledgJiekouEntity.getHuman().get(z).getCpersoncode();
                    }
                }
                for(int a=0;a<ledgJiekouEntity.getProduct().size();a++){
                    if(databeanlist.getProduct().equals(ledgJiekouEntity.getProduct().get(a).getCinvstd())){
                        binding.ledgerEditProduct.setSelection(a,true);
                        if(currentproduct.isEmpty()){
                            currentproduct="";
                        }else {
                            currentproduct = ledgJiekouEntity.getProduct().get(a).getI_id();
                        }

                    }
                }
                binding.ledgerEditProduct.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {//型号的点击事件
                    @Override
                    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                        productBeanentity = productBeans.get(position);
                        currentproduct = productBeanentity.getI_id();
                    }

                    @Override
                    public void onNothingSelected(AdapterView<?> parent) {

                    }
                });
                binding.ledgerEditJingl.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
                    @Override
                    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                        humanBeanentity = humanBeans.get(position);
                        currentproduct = humanBeanentity.getCpersoncode();
                    }

                    @Override
                    public void onNothingSelected(AdapterView<?> parent) {

                    }
                });
            }
        });

    }

我遇到的难题：
我在进行产品数据默认选中的时候，for循环里面的数据就只打印一个，直接导致无法进行默认设置，然后我将 if条件判断的顺序改变了一下 就好了 哎花了我一上午时间没想到会败到这里 ，希望看到这篇文章的你能够有用