Tabhost使用范例

1.MainActivity.java

关键点：

1>MainActivity extends TabActivity implements OnClickListener,OnCheckedChangeListener

2> localTabHost.addTab(buildTabSpec("new", R.string.form_tab_new,
   R.drawable.main_tab_bg_selector, new Intent(this,
   HellowordActivity.class)));
3>mR1 = ((RadioButton) findViewById(R.id.radio_button0));
mR1.setOnCheckedChangeListener(this);

4>

<string name="form_tab_new">最新</string>
    <string name="form_tab_hot">热门</string>
    <string name="form_tab_get">获取积分</string>
    <string name="form_tab_soft">应用</string>

5>

main_tab_bg_selector.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
 <item android:drawable="@drawable/main_tab_bg" android:state_checked="true" />
</selector>

6>

tab_selector.xml

<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android" >     <item android:drawable="@drawable/toptab_normal" android:state_checked="false"/>

<item android:drawable="@drawable/toptab_select" android:state_checked="true"/>

</selector>

7>colors.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
   
    <color name="white">#FFFFFF</color> <!-- 白色 -->
        <color name="bg">#eeeef4</color>
</resources>

8>toptab_select 、  toptab_normal 、 main_tab_bg

package com.example.tabhostdemo;

import android.os.Bundle;
import android.app.Activity;
import android.app.TabActivity;
import android.content.Intent;
import android.graphics.Color;
import android.view.Menu;
import android.view.View;
import android.view.Window;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TabHost;
import android.widget.CompoundButton.OnCheckedChangeListener;

public class MainActivity extends TabActivity implements OnClickListener,OnCheckedChangeListener{

	private Button back;
	private TabHost mTabHost;
	private RadioButton mR1;
	private RadioButton mR2;
	private RadioButton mR3;
	private RadioGroup main_radio;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		getWindow().requestFeature(Window.FEATURE_NO_TITLE);
		setContentView(R.layout.activity_main);
		initView();
		setupIntent();
	}

	private void setupIntent() {
		this.mTabHost = getTabHost();
		TabHost localTabHost = this.mTabHost;

		localTabHost.addTab(buildTabSpec("new", R.string.form_tab_new,
				R.drawable.main_tab_bg_selector, new Intent(this,
						HellowordActivity.class)));

		localTabHost.addTab(buildTabSpec("hot", R.string.form_tab_hot,
				R.drawable.main_tab_bg_selector, new Intent(this,
						HellowordActivity2.class)));

		localTabHost.addTab(buildTabSpec("get", R.string.form_tab_get,
				R.drawable.main_tab_bg_selector, new Intent(this,
						HellowordActivity.class)));
	}

	private void initView() {
		mR1 = ((RadioButton) findViewById(R.id.radio_button0));
		mR1.setOnCheckedChangeListener(this);
		this.mR1.setTextColor(Color.RED);
		mR2 = ((RadioButton) findViewById(R.id.radio_button1));
		mR2.setOnCheckedChangeListener(this);
		mR3 = ((RadioButton) findViewById(R.id.radio_button2));
		mR3.setOnCheckedChangeListener(this);
		main_radio = (RadioGroup) findViewById(R.id.main_radio);
		back = (Button) findViewById(R.id.back);
		back.setOnClickListener(this);
	}

	private TabHost.TabSpec buildTabSpec(String tag, int resLabel, int resIcon,
			final Intent content) {
		return this.mTabHost
				.newTabSpec(tag)
				.setIndicator(getString(resLabel),
						getResources().getDrawable(resIcon))
						.setContent(content);
	}

	@Override
	public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
		if (isChecked) {
			System.out.println("isChecked");

			switch (buttonView.getId()) {
			case R.id.radio_button0:
				this.mTabHost.setCurrentTabByTag("new");
				this.mR1.setTextColor(Color.RED);
				this.mR2.setTextColor(Color.BLACK);
				this.mR3.setTextColor(Color.BLACK);
				break;
			case R.id.radio_button1:
				this.mR1.setTextColor(Color.BLACK);
				this.mR3.setTextColor(Color.BLACK);
				this.mR2.setTextColor(Color.RED);
				this.mTabHost.setCurrentTabByTag("hot");
				break;
			case R.id.radio_button2:
				this.mR1.setTextColor(Color.BLACK);
				this.mR2.setTextColor(Color.BLACK);
				this.mR3.setTextColor(Color.RED);
				this.mTabHost.setCurrentTabByTag("get");
				break;
			// case R.id.radio_button2:
			//
			// mPopupWindow.showAsDropDown(main_radio, 0, 0);

			// break;
			}
		}
	}

	@Override
	public void onClick(View v) {
		// TODO Auto-generated method stub
		switch (v.getId()) {
		case R.id.back:
			finish();
			break;

		default:
			break;
		}
	}

}

2.HellowordActivity.java

HellowordActivity2.java 和 HellowordActivity.java 一样

package com.example.tabhostdemo;

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

public class HellowordActivity extends Activity {
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_hello);
	}
}

3.