Android Open Source - saostar Main Activity

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License

The source code is released under:
Apache License
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Java Source Code

package net.azyobuzi.azyotter.saostar.activities;
//from w  ww  .  jav a 2 s. c  om
import net.azyobuzi.azyotter.saostar.R;
import net.azyobuzi.azyotter.saostar.StringUtil;
import net.azyobuzi.azyotter.saostar.configuration.Accounts;
import net.azyobuzi.azyotter.saostar.configuration.Setting;
import net.azyobuzi.azyotter.saostar.configuration.Tab;
import net.azyobuzi.azyotter.saostar.configuration.Tabs;
import net.azyobuzi.azyotter.saostar.services.UpdateStatusService;
import net.azyobuzi.azyotter.saostar.system.Action1;
import net.azyobuzi.azyotter.saostar.system.Action2;
import net.azyobuzi.azyotter.saostar.system.Action3;
import net.azyobuzi.azyotter.saostar.widget.AccountSelector;
import android.app.ActionBar;
import android.app.ActionBar.TabListener;
import android.app.Activity;
import android.app.FragmentTransaction;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.EditText;

public class MainActivity extends Activity {
    /** Called when the activity is first created. */

  public static final String CALLED_FROM_AZYOTTER = "net.azyobuzi.azyotter.saostar.activities.MainActivity.CALLED_FROM_AZYOTTER";
  public static final String TAB_INDEX = "net.azyobuzi.azyotter.saostar.activities.MainActivity.TAB_INDEX";

    private boolean tabChanged = false;

  @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    setTheme(Setting.getTheme());
        setContentView(R.layout.main);

        if (Accounts.getAccountsCount() == 0) {
          startActivity(new Intent(this, AccountsActivity.class)
            .putExtra(AccountsActivity.FIRST_RUN, true)
            .putExtra(CALLED_FROM_AZYOTTER, true));
          finish();
          return;
        }

        final ActionBar actionBar = getActionBar();
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
        createTabs();
        Tabs.addedHandler.add(tabChangedHandler);
        Tabs.removedHandler.add(tabChangedHandler);
        Tabs.movedHandler.add(movedTabHandler);
        
        if (savedInstanceState != null) {
          int index = savedInstanceState.getInt(TAB_INDEX, -1);
          if (index != -1)
            actionBar.selectTab(actionBar.getTabAt(index));
        }

        findViewById(R.id.btn_main_update_status).setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View arg0) {
        EditText tweetBox = (EditText)findViewById(R.id.txt_main_tweet);
        String text = tweetBox.getText().toString();
        if (StringUtil.isNullOrEmpty(text)) return;

        startService(new Intent(MainActivity.this, UpdateStatusService.class)
          .putExtra(UpdateStatusService.TEXT, text));
        tweetBox.setText("");
      }
        });
    }
  
  @Override
  protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    
    ActionBar.Tab selectedTab = getActionBar().getSelectedTab();
    if (selectedTab != null)
      outState.putInt(TAB_INDEX, Tabs.indexOf((Tab)selectedTab.getTag()));
  }

    @Override
    public void onDestroy() {
      ((AccountSelector)findViewById(R.id.as_main)).dispose();
      Tabs.addedHandler.remove(tabChangedHandler);
        Tabs.removedHandler.remove(tabChangedHandler);
        Tabs.movedHandler.remove(movedTabHandler);
      super.onDestroy();
    }

    @Override
    protected void onResume() {
      super.onResume();

      if (tabChanged) {
        getActionBar().removeAllTabs();
        createTabs();
      }
    }

    private void createTabs() {
      final ActionBar actionBar = getActionBar();
      Tabs.getAllTabs().forEach(new Action2<Tab, Integer>() {
      @Override
      public void invoke(Tab arg0, Integer arg1) {
        actionBar.addTab(
          actionBar.newTab()
            .setText(arg0.getName())
            .setTabListener(new TimelineTabListener(arg0))
            .setTag(arg0)
        );
      }
        });
    }

  private final Action1<Tab> tabChangedHandler = new Action1<Tab>() {
    @Override
    public void invoke(Tab arg) {
      tabChanged = true;
    }
  };

  private final Action3<Tab, Integer, Integer> movedTabHandler = new Action3<Tab, Integer, Integer>() {
    @Override
    public void invoke(Tab arg0, Integer arg1, Integer arg2) {
      tabChanged = true;
    }
  };

  @Override
    public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.main_menu, menu);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
      case R.id.menu_main_update_status:
        startActivity(new Intent(this, UpdateStatusActivity.class).putExtra(CALLED_FROM_AZYOTTER, true));
        return true;
      case R.id.menu_main_tabs:
        startActivity(new Intent(this, TabsActivity.class).putExtra(CALLED_FROM_AZYOTTER, true));
        return true;
      case R.id.menu_main_preference:
        startActivity(new Intent(this, SettingActivity.class).putExtra(CALLED_FROM_AZYOTTER, true));
        return true;
      default:
        return super.onOptionsItemSelected(item);
    }
  }

    private class TimelineTabListener implements TabListener {
      public TimelineTabListener(Tab tab) {
        mFragment = new TimelineTabFragment(tab);
      }

      private TimelineTabFragment mFragment;

    @Override
    public void onTabReselected(ActionBar.Tab arg0, FragmentTransaction arg1) { }

    @Override
    public void onTabSelected(ActionBar.Tab arg0, FragmentTransaction arg1) {
      if (mFragment.isAdded())
        arg1.show(mFragment);
      else
        arg1.add(R.id.fragment_content, mFragment, null);
      mFragment.actionBarTab = arg0;
    }

    @Override
    public void onTabUnselected(ActionBar.Tab arg0, FragmentTransaction arg1) {
      arg1.hide(mFragment);
    }
    }
}
Java Source Code List
