今天主要是实现简单的安卓studio的程序和复习Javaweb
我利用xml和Java语言实现了主页的功能
package cn.edu.neusoft.fooddemo.activity; import android.app.Fragment; import android.app.FragmentManager; import android.app.FragmentTransaction; import android.content.Context; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.RadioButton; import cn.edu.neusoft.fooddemo.R; import cn.edu.neusoft.fooddemo.fragment.CollectFragment; import cn.edu.neusoft.fooddemo.fragment.MeFragment; import cn.edu.neusoft.fooddemo.fragment.SearchFragment; import cn.edu.neusoft.fooddemo.fragment.ShopListFragment; public class MainActivity extends BaseActivity { private RadioButton ra_shouye_bt, ra_collect_bt, ra_search_bt, ra_wo_bt; private Fragment shopListFragment, collectFragment, searchFragment, meFragment; private FragmentManager fgManager; private int i = 0; protected void init(Context context) { setContentView(R.layout.activity_main); fgManager = getFragmentManager(); ra_shouye_bt = (RadioButton) findViewById(R.id.ra_shouye_bt); ra_collect_bt = (RadioButton) findViewById(R.id.ra_collect_bt); ra_search_bt = (RadioButton) findViewById(R.id.ra_search_bt); ra_wo_bt = (RadioButton) findViewById(R.id.ra_wo_bt); shopListFragment = new ShopListFragment(); collectFragment = new CollectFragment(); searchFragment = new SearchFragment(); meFragment = new MeFragment(); //默认进入首页 changeFrament(shopListFragment, null, "shouyeFragment"); ra_shouye_bt.setCompoundDrawablesWithIntrinsicBounds(0,R.drawable.shouye1, 0, 0); ra_shouye_bt.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { shopListFragment = new ShopListFragment(); changeFrament(shopListFragment, null, "shouyeFragment"); changeRadioButtonImage(v.getId()); } }); ra_collect_bt.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { collectFragment = new CollectFragment(); changeFrament(collectFragment, null, "collectFragment"); changeRadioButtonImage(v.getId()); } }); ra_search_bt.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { searchFragment = new SearchFragment(); changeFrament(searchFragment, null, "searchFragment"); changeRadioButtonImage(v.getId()); } }); ra_wo_bt.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { meFragment = new MeFragment(); changeFrament(meFragment, null, "meFragment"); changeRadioButtonImage(v.getId()); } }); } public void changeFrament(Fragment fragment, Bundle bundle, String tag) { for (int i = 0, count = fgManager.getBackStackEntryCount(); i < count; i++) { fgManager.popBackStack(); } FragmentTransaction fg = fgManager.beginTransaction(); fragment.setArguments(bundle); fg.add(R.id.fragmentRoot, fragment, tag); fg.addToBackStack(tag); fg.commit(); } public void changeRadioButtonImage(int btids) { int[] imageh = {R.drawable.shouye, R.drawable.collect, R.drawable.chazhao, R.drawable.gerenxinxi}; int[] imagel = {R.drawable.shouye1, R.drawable.collect1, R.drawable.chazhao1, R.drawable.gerenxinxi1}; int[] rabt = {R.id.ra_shouye_bt, R.id.ra_collect_bt, R.id.ra_search_bt, R.id.ra_wo_bt}; switch (btids) { case R.id.ra_shouye_bt: changeImage(imageh, imagel, rabt, 0); break; case R.id.ra_collect_bt: changeImage(imageh, imagel, rabt, 1); break; case R.id.ra_wo_bt: changeImage(imageh, imagel, rabt, 3); break; case R.id.ra_search_bt: changeImage(imageh, imagel, rabt, 2); break; default: break; } } public void changeImage(int[] image1, int[] image2, int[] rabtid, int index) { for (int i = 0; i < image1.length; i++) { if (i != index) { ((RadioButton) findViewById(rabtid[i])) .setCompoundDrawablesWithIntrinsicBounds(0, image1[i], 0, 0); } else { ((RadioButton) findViewById(rabtid[i])) .setCompoundDrawablesWithIntrinsicBounds(0, image2[i], 0, 0); } } } }