一、使用场景,假设有一个activity 名称为 WarehousingOutActivity ,希望在WarehousingOutActivity跳转到新页面 LocationGoodsSelectActivity,并传值过去,在LocationGoodsSelectActivity页面销毁的时候,再将处理后的数据传回WarehousingOutActivity
实现:
在WarehousingOutActivity中,跳转到LocationGoodsSelectActivity,并携带对象参数 (对象名为:toLocationGoodsSelect 该对象需要实现 Serializable接口):
Intent intent = new Intent(WarehousingOutActivity.this, LocationGoodsSelectActivity.class);
Bundle bundle = new Bundle();
bundle.putSerializable("toLocationGoodsSelect", toLocationGoodsSelect);
intent.putExtras(bundle);
WarehousingOutActivity.this.startActivityForResult(intent, ActivityRequestCode.TO_LOCATION_GOODS_SELECT);
再重写 onActivityResult 方法:
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
switch (requestCode) {
case ActivityRequestCode.TO_LOCATION_GOODS_SELECT:
Map<Long, List<GoodsBatchTakeParam>> resultMap = (Map<Long, List<GoodsBatchTakeParam>>) data.getSerializableExtra("resultMap");
Toast.makeText(WarehousingOutActivity.this, QMUITipDialog.Builder.ICON_TYPE_FAIL, resultMap.toString());
break;
}
}
}
在LocationGoodsSelectActivity中,接收上一个页面传进来的数据,onCreate方法中:
Intent intent = getIntent();
toLocationGoodsSelect = (ToLocationGoodsSelect) intent.getSerializableExtra("toLocationGoodsSelect");
就拿到了刚刚传过来的对象:toLocationGoodsSelect
想要在LocationGoodsSelectActivity 再传回数据到WarehousingOutActivity中,就在页面销毁之前:
Intent intent = new Intent(LocationGoodsSelectActivity.this, WarehousingOutActivity.class);
Bundle bundle = new Bundle();
bundle.putSerializable("resultMap", (Serializable) resultMap);
intent.putExtras(bundle);
setResult(RESULT_OK, intent);
finish();
为了方便附:
ActivityRequestCode.java 代码:
public class ActivityRequestCode {
/**
* 出库 去商品库位选择页
*/
public static final int TO_LOCATION_GOODS_SELECT = 10001;
}
就这样可以了,直接复制代码肯定报错,因为有些我自己自定义的变量,你可以替换成自己的,思路是这样的,一般你既然要用到,那你肯定会基础的android,你就很简单的改造一下即可。