android Intent传递对象，startActivityForResult使用， setResult(RESULT_OK)使用，getArguments(),

原创已于 2022-05-05 11:59:42 修改 · 1.3k 阅读

2 ·

CC 4.0 BY-SA版权

文章标签：

#Activity #setResult #getArguments #Intent传递对象

于 2017-10-18 11:21:19 首次发布

移动开发专栏收录该内容

279 篇文章

订阅专栏

本文介绍了Android应用中如何通过Intent和Fragment进行数据传递的方法，包括数据打包、解析及活动间的数据交互流程。

Bundle bundle = this.getIntent().getExtras();

if(bundle !=null){

Fragment、getArguments()

传

public static DriverHistoryFragment getInstance(String tag) {
    Bundle bundle = new Bundle();
    bundle.putString(TAG, tag);
    DriverHistoryFragment fragment = new DriverHistoryFragment();
    fragment.setArguments(bundle);
    return fragment;
}

DriverHistoryFragment.getInstance(HISTORY)

取

mEnterTag = getArguments().getString(TAG);

传递

Intent intent = new Intent(GoodsDetailActivity.this, BuyOrderActivity.class);
intent.putExtra("datas", (Serializable) orderList);
intent.putExtra("type", BuyOrderActivity.SINGLE);
startActivity(intent);

intent.putExtra("put_ser_test",dto );

接收

mto = (BindCheckDTO)getIntent().getSerializableExtra("put_ser_test");

private List<OrderCommodity> orderList;

orderList = (List<OrderCommodity>) getIntent().getSerializableExtra("datas");

Bundle bundle = new Bundle();
bundle.putParcelableArrayList("goodsBeans", goodsBeans);
bundle.putString("totalPrice", totalPrice);
bundle.putString("orderId", orderId);
intent.putExtras(bundle);
context.startActivity(intent);

goodsBeans = getIntent().getParcelableArrayListExtra("goodsBeans");

startActivityForResult的使用

发起跳转

List<CarBean.DataBean.ListBean> selectdatalist  = new ArrayList<>();

public static final int REQUEST_CODE_CAR = 10002;

startActivityForResult(MoreCarActivity.newIntent(this, true), REQUEST_CODE_CAR);

回调接收数据

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode != RESULT_OK) {
        return;
    }
    if (data != null) {
        switch (requestCode) {
   
            case REQUEST_CODE_CAR:
                selectdatalist = (List<CarBean.DataBean.ListBean>) data.getSerializableExtra(CarActivity.RESULT_BEAN);
                setCarInfo();
                break;

        }
    }
}

返回数据

public static final String RESULT_BEAN = "result_bean";

Intent mIntent = new Intent();
mIntent.putExtra(RESULT_BEAN, (Serializable)selectdatalist);
setResult(RESULT_OK, mIntent);
finish();

//回到首页
Intent mainIntent = MainActivity.getIntent(BatteryOrderActivity.this, 4);
//打开订单列表
Intent orderListIntent = new Intent(BatteryOrderActivity.this, MyBatteryOrderActivity.class);
//打开订单明细
Intent orderDetailIntent = BatteryOrderDetailsActivity.getIntent(BatteryOrderActivity.this, orderId);
startActivities(new Intent[]{mainIntent, orderListIntent, orderDetailIntent});

回去

 setResult(RESULT_OK);

接收

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode != RESULT_OK) {
        return;
    }
    switch (requestCode) {
        case REQUEST_CODE_RELEASE:
            mViewpager.setCurrentItem(0);
            mNewOrdersFragment.mRefreshLayout.startRefresh();
            break;
    }
}

发送。。REQUEST_QR_CODE 是请求码

Intent i = new Intent(MainActivity.this, SimpleCaptureActivity.class);
MainActivity.this.startActivityForResult(i, REQUEST_QR_CODE);

    @Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
        LgqLogPlus.d("cccccc==请求码==="+requestCode+".。。。返回码..."+resultCode);
    if (resultCode == 3
            && requestCode == REQUEST_QR_CODE
            && data != null) {
        String result = data.getStringExtra("function_test");
        Toast.makeText(MainActivity.this, result, Toast.LENGTH_SHORT).show();
    }
}

返回 3是返回码

Intent intent = new Intent();
intent.putExtra("function_test",resultString);
setResult(3, intent);
finish();