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Editorial Team
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Asked: 2026-05-20T00:13:47+00:00

i am trying to create a custom tab in my android app and i

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i am trying to create a custom tab in my android app and i got some sample codes but that code is showing errors in setIndicator method…here is my code

error i am getting is – The method setIndicator(CharSequence) in the type TabHost.TabSpec is not applicable for the arguments (TextView)

package com.myapp;

import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.TabHost;
import android.widget.TabWidget;
import android.widget.TextView;
import android.widget.LinearLayout.LayoutParams;
import android.widget.TabHost.TabContentFactory;
import android.widget.TabHost.TabSpec;

//Custom Tabs
public class MyActivity extends Activity {

int tabHeight = 40;

@Override
public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);
LinearLayout main = new LinearLayout(this);
main.setOrientation(LinearLayout.VERTICAL);
setContentView(main);

TabHost tabs = new TabHost(this);
tabs.setId(android.R.id.tabhost);
main.addView(tabs);

TabWidget tabWidget = new TabWidget(this);
tabWidget.setId(android.R.id.tabs);
tabs.addView(tabWidget);

FrameLayout tabContent = new FrameLayout(this);
tabContent.setId(android.R.id.tabcontent);
tabContent.setPadding(0, tabHeight, 0, 0);
tabs.addView(tabContent);

TextView content = new TextView(this);
content.setText("This is the Frame Content");
content.setId(100);
tabs.setup();

TabSpec tspec1 = tabs.newTabSpec("Tab1");
tspec1.setIndicator(makeTabIndicator("One"));
tspec1.setContent(new PreExistingViewFactory(content));
tabs.addTab(tspec1);

TabSpec tspec2 = tabs.newTabSpec("Tab2");
tspec2.setIndicator(makeTabIndicator("Two"));
tspec2.setContent(new PreExistingViewFactory(content));
tabs.addTab(tspec2);

TabSpec tspec3 = tabs.newTabSpec("Tab3");
tspec3.setIndicator(makeTabIndicator("Three"));
tspec3.setContent(new PreExistingViewFactory(content));
tabs.addTab(tspec3);

}

private TextView makeTabIndicator(String text){

TextView tabView = new TextView(this);
LayoutParams lp3 = new LayoutParams(LayoutParams.WRAP_CONTENT, tabHeight, 1);
lp3.setMargins(1, 0, 1, 0);
tabView.setLayoutParams(lp3);
tabView.setText(text);
tabView.setTextColor(Color.WHITE);
tabView.setGravity(Gravity.CENTER_HORIZONTAL|Gravity.CENTER_VERTICAL);
tabView.setBackgroundDrawable( getResources().getDrawable(R.drawable.tab_indicator));
tabView.setPadding(13, 0, 13, 0);
return tabView;

}



class PreExistingViewFactory implements TabContentFactory{

private final View preExisting;
protected PreExistingViewFactory(View view){
preExisting = view;
}

public View createTabContent(String tag) {
return preExisting;
}

}

}

anybody pls help me to fix this issue …

thanx in advance ..
kris

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1 Answer

  1. Editorial Team

    Unfortunately the method setIndicator(View view) only works for Android 1.6 and up (version 4). If you are supporting Android 1.5 (version 3) you can only use a String/CharSequence as an indicator using the setIndicator(CharSequence label).

    See the reference: http://developer.android.com/reference/android/widget/TabHost.TabSpec.html#setIndicator

    Notice that the method setIndicator(View view) is “Since: API Level 4”

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