我查了一些关于如何在android中构建TAB的在线教程，并看到了符合我要求的教程。我很高兴实施它并且效果很好。当我希望每个单独的选项卡推送到一个单独的活动时，问题就出现了。我无法开始并打算传递控制权。我只给出了关于如何制作选项卡的主要代码，因为构建所需的 xml 在这个问题中没有任何功能。
这是代码：
public class Secondactivity extends TabActivity {
private TabHost mTabHost;
private void setupTabHost() {
mTabHost = (TabHost) findViewById(android.R.id.tabhost);
mTabHost.setup();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
setupTabHost();
mTabHost.getTabWidget().setDividerDrawable(se.copernicus.activity.R.drawable.tab_divider);
setupTab(new TextView(this), "Month");
setupTab(new TextView(this), "Week");
setupTab(new TextView(this), "Day");
}
private void setupTab(final View view, final String tag) {
View tabview = createTabView(mTabHost.getContext(), tag);
TabSpec setContent = mTabHost.newTabSpec(tag).setIndicator(tabview)
.setContent(new TabContentFactory() {
public View createTabContent(String tag) {
return view;
}
});
mTabHost.addTab(setContent);
}
private static View createTabView(final Context context, final String text) {
View view = LayoutInflater.from(context)
.inflate(R.layout.tabs_bg, null);
TextView tv = (TextView) view.findViewById(R.id.tabsText);
tv.setText(text);
return view;
}
}
我怎样才能开始一个新的意图，以便当单击选项卡时它应该从Secondactivity to WeekActivity or DayActivity ?
public class MainTabActivity extends TabActivity
{
private TabHost mTabHost;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.program_guide_tab_activity_layout);
mTabHost = (TabHost) findViewById(android.R.id.tabhost);
setupTab(new TextView(this), getString(R.string.live));
setupTab(new TextView(this), getString(R.string.guide));
setupTab(new TextView(this), getString(R.string.remotes));
setupTab(new TextView(this), getString(R.string.settings));
mTabHost.setCurrentTabByTag(getString(R.string.live));
}
private void setupTab(final View view, final String tag)
{
View tabview = createTabView(mTabHost.getContext(), tag);
if (tag.compareTo(getString(R.string.live)) == 0)
{
Intent intent = new Intent(getApplicationContext(), LiveActivity.class);
TabSpec setContent = mTabHost.newTabSpec(getString(R.string.live)).setIndicator(tabview).setContent(new TabHost.TabContentFactory()
{
public View createTabContent(String tag)
{
return view;
}
});
setContent.setContent(intent);
mTabHost.addTab(setContent);
}
if (tag.compareTo(getString(R.string.guide)) == 0)
{
Intent intent = new Intent(getApplicationContext(), ProgramGuide.class);
TabSpec setContent = mTabHost.newTabSpec(getString(R.string.guide)).setIndicator(tabview).setContent(new TabHost.TabContentFactory()
{
public View createTabContent(String tag)
{
return view;
}
});
setContent.setContent(intent);
mTabHost.addTab(setContent);
}
if (tag.compareTo(getString(R.string.remotes)) == 0)
{
Intent intent = new Intent(getApplicationContext(), RemoteMultiPanel.class);
TabSpec setContent = mTabHost.newTabSpec(getString(R.string.remotes)).setIndicator(tabview).setContent(new TabHost.TabContentFactory()
{
public View createTabContent(String tag)
{
return view;
}
});
setContent.setContent(intent);
mTabHost.addTab(setContent);
}
if (tag.compareTo(getString(R.string.settings)) == 0)
{
Intent intent = new Intent(getApplicationContext(), SettingsMain.class);
TabSpec setContent = mTabHost.newTabSpec(getString(R.string.settings)).setIndicator(tabview).setContent(new TabHost.TabContentFactory()
{
public View createTabContent(String tag)
{
return view;
}
});
setContent.setContent(intent);
mTabHost.addTab(setContent);
}
}
private static View createTabView(final Context context, final String text)
{
View view = LayoutInflater.from(context).inflate(R.layout.tabs_bg, null);
TextView tv = (TextView) view.findViewById(R.id.tabsText);
tv.setText(text);
int resId = 0;
ImageView iconImageView = (ImageView) view.findViewById(R.id.imageView1);
if (text.compareTo(context.getString(R.string.settings)) == 0)
{
resId = R.drawable.settings_icon;
}
else if (text.compareTo(context.getString(R.string.remotes)) == 0)
{
resId = R.drawable.remotes_icon;
}
else if (text.compareTo(context.getString(R.string.live)) == 0)
{
resId = R.drawable.live_icon;
}
else if (text.compareTo(context.getString(R.string.guide)) == 0)
{
resId = R.drawable.guide_icon;
}
iconImageView.setImageResource(resId);
return view;
}
}
查看 setupTap() 方法：
它控制引发活动的 4 种可能的意图：
现场活动、节目指南、...
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