android tabhost --android UI源码-IT计算机-毕业设计.zip

package com.text.mytab; import android.app.ActivityGroup; import android.content.Intent; import android.os.Bundle; import android.util.DisplayMetrics; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.widget.LinearLayout; import android.widget.TabHost; import android.widget.TabWidget; import android.widget.TabHost.OnTabChangeListener; public class IndexActicity extends ActivityGroup { private int index_tab = 0; private TabWidget tabWidget; View tab1; View tab2; View tab4; View tab3; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.index_layout); DisplayMetrics dm = new DisplayMetrics(); Log.i("adfa","dfadf"); getWindowManager().getDefaultDisplay().getMetrics(dm); Constant.WIDTH = dm.widthPixels; Constant.HEIGHT= dm.heightPixels; //TabHost t =getTabHost(); TabHost t = (TabHost)findViewById(R.id.t1); t.setBackgroundDrawable(getResources().getDrawable(R.drawable.inde_bg)); t.setup(this.getLocalActivityManager()); t.setPadding(0, 0, 0, 0); tabWidget = t.getTabWidget(); LayoutInflater fi = LayoutInflater.from(IndexActicity.this); View view = fi.inflate(R.layout.tab_layout, null); LinearLayout ll = (LinearLayout) view.findViewById(R.id.tablayout); tab1 = view.findViewById(R.id.tab1); tab2 = view.findViewById(R.id.tab2); tab3 = view.findViewById(R.id.tab3); tab4 = view.findViewById(R.id.tab4); ll.removeAllViews(); t.addTab(t.newTabSpec("1").setIndicator(tab1 ).setContent( new Intent(IndexActicity.this, TabActivity1.class))); t.addTab(t.newTabSpec("2").setIndicator(tab2 ).setContent( new Intent(IndexActicity.this, TabActivity2.class))); t.addTab(t.newTabSpec("3").setIndicator(tab3 ).setContent( new Intent(IndexActicity.this, TabActivity3.class))); t.addTab(t.newTabSpec("4").setIndicator(tab4).setContent( new Intent(IndexActicity.this, TabActivity4.class))); tabWidget.setBackgroundColor(getResources().getColor(R.color.alpha_00)); tabWidget.setBaselineAligned(true); tab1.setBackgroundDrawable(getResources().getDrawable( R.drawable.menu_bg)); for (int i = 0; i < tabWidget.getChildCount(); i++) { tabWidget.getChildAt(i).getLayoutParams().width = Constant.WIDTH / 4; tabWidget.getChildAt(i).getLayoutParams().height=50; } t.setOnTabChangedListener(new OnTabChangeListener() { @Override public void onTabChanged(String tabId) { tabChanged(tabId); } }); } //捕获tab变化事件 public void tabChanged(String tabId) { if (index_tab != (Integer.valueOf(tabId) - 1)) { tabWidget.getChildAt(Integer.valueOf(tabId) - 1) .setBackgroundDrawable( getResources().getDrawable(R.drawable.menu_bg)); tabWidget.getChildAt(index_tab).setBackgroundDrawable(null); index_tab = Integer.valueOf(tabId) - 1; } } }