TabHost主Activity部分代碼：
public class MainActivity extends Activity {//此處不需要繼承TabActivity
private TabHost tabHost;
LocalActivityManager mLocalActivityManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tabHost=(TabHost) findViewById(R.id.tabhostTest);//獲取TabHost
Intent intent;
TabSpec spec;
//LocalActivityManager的第二個參數一定要設置爲true，不然將無法獲取到當前的子Activity，也就無法響應子Activity的事件
mLocalActivityManager=new LocalActivityManager(this,true);
mLocalActivityManager.dispatchCreate(savedInstanceState);
tabHost.setup(mLocalActivityManager);
intent=new Intent(this,Tabone.class);
spec=tabHost.newTabSpec("tab1").setIndicator("tab1").setContent(intent);
tabHost.addTab(spec);
intent=new Intent(this,Tabtwo.class);
spec=tabHost.newTabSpec("tab2").setIndicator("tab2").setContent(intent);
tabHost.addTab(spec);
}
@Override
protected void onActivityResult(int requestCode, int resultCode,
Intent data) {
@SuppressWarnings("deprecation")
Activity subActivity = mLocalActivityManager.getCurrentActivity(); // 獲取當前活動的Activity實例
//判斷是否實現返回值接口
if (subActivity instanceof OnTabActivityResultListener) {
//獲取返回值接口實例
OnTabActivityResultListener listener = (OnTabActivityResultListener) subActivity;
//轉發請求到子Activity
listener.onTabActivityResult(requestCode, resultCode, data);
}
}
}
子Activity代碼：
public class Tabone extends Activity implements OnTabActivityResultListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_tabone);
//省略調用外部Intent的代碼，如調用系統相機
//子Activity要使用getParent().startActivityForResult來啓動外部Intent，如下代碼:
//mActivity.getParent().startActivityForResult(intent, Constant.IMAGE_CAPTURE_REQUEST);
}
@Override
public void onTabActivityResult(int requestCode, int resultCode, Intent data) {
//此處響應外部Intent的事件，從主Activity中傳過來
}
}
接口OnTabActivityResultListener部分代碼：
public interface OnTabActivityResultListener {
public void onTabActivityResult(int requestCode, int resultCode, Intent data);
}
