TabHost使用 调节Tab高度、背景色

需求：

本来TabHost已经被遗弃了，但是Android4.2上ActionBar不给力，tab不能调节高度，宽度调整也有限制，有时候还是得使用TabHost

示例：

src/com.example.hellotabhost.HelloTabHost.java

package com.example.hellotabhost;

import android.os.Bundle;
import android.annotation.SuppressLint;
import android.app.ActionBar;
import android.app.TabActivity;
import android.content.Intent;
import android.widget.TabHost;
import android.widget.TabWidget;
import android.widget.TextView;

@SuppressLint("NewApi")
public class HelloTabHost extends TabActivity {
	private static final String TAG = "HelloTabHost";
	private TabHost mtabHost;
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		mtabHost = getTabHost(); 
		mtabHost.addTab(mtabHost.newTabSpec("tab1")
				.setIndicator(getString(R.string.tabs_1_tab_1), getResources().getDrawable(R.drawable.ic_launcher)) 
				.setContent(new Intent(this, A_Activity.class))); 
		mtabHost.addTab(mtabHost.newTabSpec("tab2")
				.setIndicator(getString(R.string.tabs_1_tab_2),getResources().getDrawable(R.drawable.ic_launcher)) 
				.setContent(new Intent(this, B_Activity.class))); 
		
		//
		final TabWidget tabWidget = mtabHost.getTabWidget();


		for (int i = 0; i < tabWidget.getChildCount(); i++) {
            tabWidget.getChildAt(i).getLayoutParams().height = 120;  //设置Tab高度
            tabWidget.getChildAt(i).setBackgroundResource(R.drawable.tab_bg);	//设置Tab项背景色

            //设置Tab的字体的大小和颜色
            TextView tv = (TextView) tabWidget.getChildAt(i).findViewById(android.R.id.title);
            tv.setTextSize(30);
            tv.setTextColor(this.getResources().getColorStateList(android.R.color.white));

        }
	}

}

src/com/example/hellotabhost/A_Activity.java

package com.example.hellotabhost;

import android.app.Activity;
import android.os.Bundle;

public class A_Activity extends Activity{

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_hello_tab_host);
	}
}

src/com/example/hellotabhost/B_Activity.java

package com.example.hellotabhost;

import android.app.Activity;
import android.os.Bundle;

public class B_Activity extends Activity{

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.title);
	}
}

res/drawable/tab_bg.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true" android:drawable="@drawable/tab_selected" />
    <item android:state_focused="true" android:drawable="@drawable/tab_selected" />
    <item android:state_selected="true" android:drawable="@drawable/tab_selected" />
    <item android:drawable="@drawable/tab_normal" />
</selector>