当我在另一个TabActivity中嵌套TabActivity时,从内部选项卡调用时,startActivityForResult失败。新的活动开始,但我收到一条错误消息:Android:嵌套选项卡活动不适用于startActivityForResult
startActivity called from non-Activity context; forcing Intent.FLAG_ACTIVITY_NEW_TASK for: Intent
和onActivityResult从不会在活动返回时调用。
重现代码见下面。四班,MyActivity是两个选项卡主类,NestedTab有三个标签,所有标签containt SimpleActivity与调用SimpleDialog按钮:
public class MyActivity extends TabActivity {
/**
* Called when the activity is first created.
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// Populate a couple of tabs
TabHost tabHost = getTabHost(); // The activity TabHost
TabHost.TabSpec spec; // Resusable TabSpec for each tab
Intent intent; // Reusable Intent for each tab
// Create an Intent to launch an Activity for the tab (to be reused)
intent = new Intent().setClass(this, SimpleActivity.class);
// Initialize a TabSpec for each tab and add it to the TabHost
spec = tabHost.newTabSpec("simple").setIndicator("Simple")
.setContent(intent);
tabHost.addTab(spec);
// Repeat
intent = new Intent().setClass(this, NestedTab.class);
spec = tabHost.newTabSpec("nested").setIndicator("Nested tabs")
.setContent(intent);
tabHost.addTab(spec);
}
}
public class NestedTab extends TabActivity {
/**
* Called when the activity is first created.
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TabHost tabHost = getTabHost(); // The activity TabHost
TabHost.TabSpec spec; // Resusable TabSpec for each tab
Intent intent; // Reusable Intent for each tab
// Create an Intent to launch an Activity for the tab (to be reused)
intent = new Intent(this, SimpleActivity.class);
String tabs[]= {"One", "Two", "Three"};
for (String s : tabs)
{
intent.putExtra("name", s);
spec = tabHost.newTabSpec(s).setIndicator(s).setContent(intent);
tabHost.addTab(spec);
}
}
public class SimpleActivity extends Activity {
Button mBtn;
Context mCtx;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.simple);
mCtx = this;
mBtn = (Button) findViewById(R.id.btn);
mBtn.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
//To change body of implemented methods use File | Settings | File Templates.
startActivityForResult(new Intent(mCtx, SimpleDisplay.class), 1);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data); //To change body of overridden methods use File | Settings | File Templates.
Toast.makeText(this, "Activity finished", Toast.LENGTH_LONG).show();
}
}
public class SimpleDisplay extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
TextView text = new TextView(this);
text.setText("Just hit back button");
setContentView(text);
}
}
无法粘贴的XML文件,但主要是相同的步骤4: http://developer.android.com/resources/tutorials/views/hello-tabwidget.html
简单只是一个textview和一个按钮。
任何帮助表示赞赏。
如果在另一个TabActivity中嵌套TabActivity,则必须重新考虑应用程序设计。 – 2010-12-06 20:36:59
我们认为这是呈现我们的数据集的自然方式,并且是一种非常常见的方式。例如。 iPhone上的appstore拥有排名前25的子菜单选项,排名最高,排名靠前,收入最高。 – Bitt 2010-12-06 20:52:44