在TabHost的子Activity中startActivityForResult调用其他Activity时候遭遇到onActivityResult方法不响应的问题.
解决办法如下:
1.通过父Activity启动其他Activity;
2.实现父Activity的onActivityResult方法,将该处接收到的请求转发给当前活动的子Activity;
3.自定义一个转发接口用来实现第2步中的转发功能;
4.子Activity中实现第3步接口中的方法用来接收返回信息;
代码如下:
1.通过父Activity启动其他Activity
1 getParent().startActivityForResult(new Intent(...), REQUEST_CODE);
2.实现父Activity的onActivityResult方法
1 @Override
2 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
3 // 获取当前活动的Activity实例 4 Activity subActivity = getLocalActivityManager().getCurrentActivity();
5 //判断是否实现返回值接口 6 if (subActivity instanceof OnTabActivityResultListener) {
7 //获取返回值接口实例 8 OnTabActivityResultListener listener = (OnTabActivityResultListener) subActivity;
9 //转发请求到子Activity 10 listener.onTabActivityResult(requestCode, resultCode, data);
11 }
12 super.onActivityResult(requestCode, resultCode, data);
13 }
3.自定义接口
/** * 解决子Activity无法接收Activity回调的问题 * @author Administrator * */
public interface OnTabActivityResultListener {
public void onTabActivityResult(int requestCode, int resultCode, Intent data);
}
4.子Activity需要实现onTabActivityResult方法
@Override
public void onTabActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST_CODE && resultCode == RESULT_OK) {
//实现该处逻辑
...
}
}
转载于:http://www.cnblogs.com/relinson/archive/2012/03/25/startActivityForResult.html