import android.app.TabActivity; import android.content.Intent; import android.os.Bundle; import android.widget.*; import android.widget.TabHost.OnTabChangeListener; import android.os.Build; import android.view.View; import java.lang.reflect.Field; import android.view.LayoutInflater; public class testTabActivity extends TabActivity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); int width =45; int height =48; final TabHost tabs = getTabHost(); final TabWidget tabWidget = tabs.getTabWidget(); Field mBottomLeftStrip; Field mBottomRightStrip; LayoutInflater.from(this).inflate(R.layout.tab_views, tabs.getTabContentView(), true); tabs.addTab(tabs.newTabSpec("first tab") .setIndicator("信息",getResources().getDrawable(R.drawable.m)) .setContent(new Intent(testTabActivity.this,OneActivty.class)) ); tabs.addTab(tabs.newTabSpec("second tab") .setIndicator("收藏",getResources().getDrawable(R.drawable.n)) .setContent(R.id.content)); tabs.addTab(tabs.newTabSpec("second tab") .setIndicator("设置",getResources().getDrawable(R.drawable.s)) .setContent(R.id.content)); for (int i =0; i < tabWidget.getChildCount(); i++) { /** * 设置高度、宽度,不过宽度由于设置为fill_parent,在此对它没效果 */ tabWidget.getChildAt(i).getLayoutParams().height = height; tabWidget.getChildAt(i).getLayoutParams().width = width; /** * 设置tab中标题文字的颜色,不然默认为黑色 */ final TextView tv = (TextView) tabWidget.getChildAt(i).findViewById(android.R.id.title); tv.setTextColor(this.getResources().getColorStateList(android.R.color.white)); /** * 此方法是为了去掉系统默认的色白的底角 * * 在 TabWidget中mBottomLeftStrip、mBottomRightStrip * 都是私有变量,但是我们可以通过反射来获取 * * 由于还不知道Android 2.2的接口是怎么样的,现在先加个判断好一些 */ if (Float.valueOf(Build.VERSION.RELEASE) <= 2.1) { try { mBottomLeftStrip = tabWidget.getClass().getDeclaredField ("mBottomLeftStrip"); mBottomRightStrip = tabWidget.getClass().getDeclaredField ("mBottomRightStrip"); if(!mBottomLeftStrip.isAccessible()) { mBottomLeftStrip.setAccessible(true); } if(!mBottomRightStrip.isAccessible()){ mBottomRightStrip.setAccessible(true); } mBottomLeftStrip.set(tabWidget, getResources().getDrawable (R.drawable.no)); mBottomRightStrip.set(tabWidget, getResources().getDrawable (R.drawable.no)); } catch (Exception e) { e.printStackTrace(); } } else { /** * 不做任何处理 */ } View vvv = tabWidget.getChildAt(i); if(tabs.getCurrentTab()==i){ vvv.setBackgroundDrawable(getResources().getDrawable(R.drawable.tab_button)); } else { vvv.setBackgroundDrawable(getResources().getDrawable(R.drawable.bar)); } } /** * 当点击tab选项卡的时候,更改当前的背景 */ tabs.setOnTabChangedListener(new OnTabChangeListener(){ @Override public void onTabChanged(String tabId) { // TODO Auto-generated method stub for (int i =0; i < tabWidget.getChildCount(); i++) { View vvv = tabWidget.getChildAt(i); if(tabs.getCurrentTab()==i){ vvv.setBackgroundDrawable(getResources().getDrawable(R.drawable.tab_button)); } else { vvv.setBackgroundDrawable(getResources().getDrawable(R.drawable.bar)); } } }}); } }