Question

怎么设置tabhost的背景颜色

Answer 1

TabWidget tabWidget = tabHost.getTabWidget();                                //获取TabHost的头部 
         
        for (int i=0; i<tabWidget.getChildCount(); i++){                         //循环每个tabView
            View view = tabWidget.getChildAt(i);                                 //获取tabView项           
            view.setContentDescription(Integer.toString(i+1));
            view.getLayoutParams().height = (int) (view.getLayoutParams().height / 1.2);
             
             
             
             
            switch (i) {
                case 0:{
                    view.setBackgroundResource(R.drawable.menu_1_selector);
                    break;
                }              
                case 1:{
                    view.setBackgroundResource(R.drawable.menu_2_selector);
                    break;
                }              
                case 2:{
                    view.setBackgroundResource(R.drawable.menu_3_selector);
                    break;
                }      
                case 3:{
                    view.setBackgroundResource(R.drawable.menu_4_selector);
                    break;
                }
            }
        }
}

Answer 2

package com.tony.tabstudy;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.TabHost;
import android.widget.TabHost.OnTabChangeListener;
import android.widget.TabWidget;

public class TabStudyActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

final TabHost tabHost = (TabHost) findViewById(R.id.tabHost);
tabHost.setup();

TabHost.TabSpec spec = tabHost.newTabSpec("tab1");
spec.setContent(R.id.tab1);
spec.setIndicator("主页");
tabHost.addTab(spec);

TabHost.TabSpec spec2 = tabHost.newTabSpec("tab2");
spec2.setContent(R.id.tab2);
spec2.setIndicator("主页2", getResources().getDrawable(android.R.drawable.btn_dialog));
tabHost.addTab(spec2);

tabHost.setCurrentTab(1);

//初始化设置一次标签背景
updateTabBackground(tabHost);

//选择时背景更改。
tabHost.setOnTabChangedListener(new OnTabChangeListener() {
@Override
public void onTabChanged(String tabId) {
updateTabBackground(tabHost);
}
});
}

/**
* 更新Tab标签的背景图
* @param tabHost
*/
private void updateTabBackground(final TabHost tabHost) {
for (int i = 0; i < tabHost.getTabWidget().getChildCount(); i++) {
View vvv = tabHost.getTabWidget().getChildAt(i);
if (tabHost.getCurrentTab() == i) {
//选中后的背景
vvv.setBackgroundDrawable(getResources().getDrawable(android.R.drawable.spinner_background));
} else {
//非选择的背景
vvv.setBackgroundDrawable(getResources().getDrawable(R.drawable.a));
}
}
}
}