Android TabWidget 检测点击当前标签 [英] Android TabWidget detect click on current tab
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问题描述
当此选项卡是当前选项卡时,我试图找到能够在该选项卡上触发 onclick 事件的方法.
I am trying to find way to be able to fire an onclick event on a tab when this tab is the current tab.
我确实尝试过这种方式(以及其他几种方式),但没有成功.
I did try this way (among several other) with no success thou.
public void onTabChanged(String tabId) {
Log.d(this.getClass().getName(), ">>>>>>>>>>>>>>>>>>>>>>>> tabId: " + tabId);
int tabs = getTabWidget().getChildCount();
Log.d(this.getClass().getName(), "tabs: " + tabs);
for(int i=0; i<tabs; i++){
View tab = getTabWidget().getChildAt(i);
if(i==tabHost.getCurrentTab()){
Log.d(this.getClass().getName(), "tab: " + i);
tab.setOnClickListener(this);
}else{
tab.setOnClickListener(null);
tab.getOnFocusChangeListener();
}
}
}
关键是我将 onClickListener
设置为 null
所以,下次我点击选项卡时什么也没有发生,但我想要 正常标签行为.
the point is that I set the onClickListener
to null
so, the next time I click on a tab nothing happens, but I would like to have the normal tab behavior.
在外面有什么想法吗?
推荐答案
我想我已经找到了解决方案,下面是示例代码:
I think I have found a solution, here follows a sample code:
intent = new Intent(this, HomeGroup.class);
View tab1 = _inflater.inflate(R.layout.custom_tab_1,null);
homeTab.setTag("Tab1");
spec = tabHost.newTabSpec("Tab1").setIndicator(tab1).setContent(intent);
tabHost.addTab(spec);
View tab2 = _inflater.inflate(R.layout.custom_tab_2,null);
homeTab.setTag("Tab2");
spec = tabHost.newTabSpec("Tab2").setIndicator(tab2).setContent(intent);
tabHost.addTab(spec);
View tab3 = _inflater.inflate(R.layout.custom_tab_3,null);
homeTab.setTag("Tab3");
spec = tabHost.newTabSpec("Tab3").setIndicator(tab3).setContent(intent);
tabHost.addTab(spec);
tabHost.setOnTabChangedListener(this);
//click on seleccted tab
int numberOfTabs = tabHost.getTabWidget().getChildCount();
for(int t=0; t<numberOfTabs; t++){
tabHost.getTabWidget().getChildAt(t).setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if(event.getAction()==MotionEvent.ACTION_UP){
String currentSelectedTag = MainTab.this.getTabHost().getCurrentTabTag();
String currentTag = (String)v.getTag();
Log.d(this.getClass().getSimpleName(), "currentSelectedTag: " + currentSelectedTag + " currentTag: " + currentTag);
if(currentSelectedTag.equalsIgnoreCase(currentTag)){
MainTab.this.getTabHost().setCurrentTabByTag(currentTag);
String newSelectedTabTag = MainTab.this.getTabHost().getCurrentTabTag();
if(newSelectedTabTag.toLowerCase().indexOf("tab1")!=-1){
//do smthg
}else if(newSelectedTabTag.toLowerCase().indexOf("tab1")!=-1){
//do smthg
}else if(newSelectedTabTag.toLowerCase().indexOf("tab3")!=-1){
//do smthg
}
return true;
}
}
return false;
}
});
}
也许可以改进它,但这对我有用!
Probably it is possible to improve it, but this does the work for me!
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