I am trying to find way to be able to fire an onclick event on a tab when this tab is the current tab.
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();
}
}
}
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.
Any idea there outside?
After gothrough many solutions for tab listener, I have found very simple solution...
getTabHost().setOnTabChangedListener(new OnTabChangeListener() {
@Override
public void onTabChanged(String tabId) {
int i = getTabHost().getCurrentTab();
Log.i("@@@@@@@@ ANN CLICK TAB NUMBER", "------" + i);
if (i == 0) {
Log.i("@@@@@@@@@@ Inside onClick tab 0", "onClick tab");
}
else if (i ==1) {
Log.i("@@@@@@@@@@ Inside onClick tab 1", "onClick tab");
}
}
});
After a lot of thinking about this, the solution ended up being easier than I thought. What I did was just create a new child class that extends TabHost and override the setCurrentTab method like so:
package com.mycompany.Views;
import android.content.Context;
import android.util.AttributeSet;
import android.widget.TabHost;
import android.widget.Toast;
public class ReclickableTabHost extends TabHost {
public ReclickableTabHost(Context context) {
super(context);
}
public ReclickableTabHost(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
public void setCurrentTab(int index) {
if (index == getCurrentTab()) {
// FIRE OFF NEW LISTENER
} else {
super.setCurrentTab(index);
}
}
}
To use your new class instead of the typical TabHost just edit your layout xml file with:
<FrameLayout
android:layout_height="match_parent"
android:layout_width="0dip"
android:layout_weight=".8">
<com.myCompany.Views.ReclickableTabHost
android:id="@android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:visibility="gone">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TabWidget
android:id="@android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@drawable/tab_unselected_holo"/>
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
</FrameLayout>
</LinearLayout>
</com.myCompany.Views.ReclickableTabHost>
Hope this helps...
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;
}
});
}
Probably it is possible to improve it, but this does the work for me!
Ugly fix:IN the onClickListener put :
tabHost.SetCurrentTab(OtherTab);
tabHost.SetCurrentTab(CurrentTab);
Where for index of Other Tab I use my simplest view under the tabs.
P.S. Customers always want their apps to be different :)
This is the code that I use (I have only 2 tabs Tab1 and Tab2):
getTabWidget().getChildAt(1).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Log.d(TAG,"1"+getTabHost().getCurrentTabTag());
if (getTabHost().getCurrentTabTag().equals("Tab2")) {
Log.d(TAG,"2");
tabHost.setCurrentTab(0);
tabHost.setCurrentTab(1);
} else {
tabHost.setCurrentTab(1);
}
}
});
The problem here is that setOnTabChangedListener does not fire when clicking on the selected tab, and if you set an OnClickListener on the tab, you lose the normal tab behavior.
So an easy solution is to put OnClickListener on the tab, and inside it, set programatically that this is the current tab.
With TabHost:
getTabWidget().getChildAt(0).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// custom code
tabHost.setCurrentTab(0);
}
});
With TabLayout
tabLayout.getTabAt(0)setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// custom code
TabLayout.Tab tab = tabLayout.getTabAt(0);
tab.select();
}
}
});
If you want to try android.support.design.widget.TabLayout, you can achieve it like this:
tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override public void onTabSelected(Tab tab) {
}
@Override public void onTabUnselected(Tab tab) {
}
@Override public void onTabReselected(Tab tab) {
}
});
mTabHost.setOnTabChangedListener(new OnTabChangeListener() {
@Override
public void onTabChanged(String tabId) {
int i = mTabHost.getCurrentTab();
mTabHost.getTabWidget().getChildAt(i)
.setBackgroundColor(Color.parseColor("#014a68"));
//int m = mTabHost.getChildCount();
for (int j = 0; j <=3; j++) {
if (j != i)
mTabHost.getTabWidget()
.getChildAt(j)
.setBackgroundColor(Color.parseColor("#000000"));
}
}
});
If you have a custom tab layout, you might need to add this in your custom view, it solved my problem:
android:duplicateParentState="true"
This is working for me...
TabHost host = (TabHost)findViewById(R.id.tabHost);
host.setOnTabChangedListener(new OnTabChangeListener() {
@Override
public void onTabChanged(String tabId) {
int i = host.getCurrentTab();
if (i == 0) {
// your method 1
}
else if (i ==1) {
// your method 2
}
}
});
来源：https://stackoverflow.com/questions/4337514/android-tabwidget-detect-click-on-current-tab