Android Open Source - HapiPodcastJ Home Activity

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License

The source code is released under:
GNU General Public License
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Java Source Code

package info.xuluan.podcast;
/*from w w w.ja v a2 s .co m*/
import info.xuluan.podcast.provider.PodcastOpenHelper;
import info.xuluan.podcast.utils.Log;
import info.xuluan.podcastj.R;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.graphics.Color;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.TableLayout;
import android.widget.TextView;
import android.widget.Toast;

public class HomeActivity extends HapiActivity {
  
  private static boolean showDebugMenu = false;
  private static final int MENU_SETTINGS = Menu.FIRST + 1;
  private static final int MENU_DEBUG = Menu.FIRST + 2;

  private static Class[] channelActivities = {
      SearchActivity.class, AddChannelActivity.class,
      ChannelsActivity.class, BackupChannelsActivity.class
  };
  private static Class[] episodeActivities = {
      EpisodesActivity.class, DownloadActivity.class,
      ChannelActivity.class, PlayerActivity.class
  };
  
  public static boolean isShowDebugMenu() {
    return showDebugMenu;
  }
  public static void setShowDebugMenu(boolean show) {
    showDebugMenu = show;
  }
  public static void toggleShowDebugMenu() {
    setShowDebugMenu(!showDebugMenu);
  }

  public static Intent nextIntent(Activity sender) {
    return adjacentIntent(sender,1); }
  public static Intent prevIntent(Activity sender) {
    return adjacentIntent(sender,-1); }
  public static Intent adjacentIntent(Activity sender, int delta) {
    Intent intent = adjacentIntent(sender, delta, channelActivities);
    if (intent==null)
      intent = adjacentIntent(sender, delta, episodeActivities);
    return intent;
  }
  public static Intent adjacentIntent(Activity sender, int delta, Class[] activities) {
    for (int i=0; i<activities.length; i++) {
      if (sender.getClass()==activities[i]) {
        i += delta;
        if (i<0)
          i += activities.length;
        else if (i>=activities.length)
          i -= activities.length;
        return new Intent(sender,activities[i]);
      }
    }
    return null;
  }
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    
    LinearLayout ll = new LinearLayout(this);
    int orientation = getResources().getConfiguration().orientation;
    boolean isLandscape = (orientation==Configuration.ORIENTATION_LANDSCAPE);
    ll.setOrientation(isLandscape?
        LinearLayout.HORIZONTAL : LinearLayout.VERTICAL);
    setContentView(ll);

    LinearLayout.LayoutParams layoutParams = //isLandscape?
        new LinearLayout.LayoutParams(
            LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);
    layoutParams.weight = 1;  //make frames the same width

    LabeledFrameHelper cfh = new LabeledFrameHelper(this,"Channels",orientation);
    ll.addView(cfh.frame());
    for (Class clz : channelActivities) {
      try {
        PodcastTab tab = (PodcastTab)(clz.newInstance());
        cfh.addIntentButton(tab.iconResource(), tab.tabLabelResource(isLandscape), clz);
      } catch (Exception ex) {}
    }
    if (isLandscape)
      cfh.frame().setLayoutParams(layoutParams);

    LabeledFrameHelper efh = new LabeledFrameHelper(this,"Episodes",orientation);
    ll.addView(efh.frame());
    for (Class clz : episodeActivities) {
      try {
        PodcastTab tab = (PodcastTab)(clz.newInstance());
        efh.addIntentButton(tab.iconResource(), tab.tabLabelResource(isLandscape), clz);
      } catch (Exception ex) {}
    }
    if (isLandscape)
      efh.frame().setLayoutParams(layoutParams);
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    menu.add(0, MENU_SETTINGS, 0,
        getResources().getString(R.string.title_pref)).setIcon(
        android.R.drawable.ic_menu_preferences);
    if (showDebugMenu) {
      menu.add(0, MENU_DEBUG, 1, "Debug");
    }
    return true;
  }

  private DialogInterface.OnClickListener debugClickListener =
           new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int select) {
      dialog.dismiss();
      switch (select) {
      case 0:  //DB downgrade(13)
        dbDowngrade(13);
          Toast.makeText(HomeActivity.this, "DB downgraded to version 13", Toast.LENGTH_SHORT).show();
          break;
      case 1:  //Toggle Debug Logging
        toggleDebugLogging();
        Toast.makeText(HomeActivity.this,
            "Initial Log Level is now "+Log.initialLevel(), Toast.LENGTH_SHORT).show();
        break;
      case 2:  //Toggle Import/Export Zip
        toggleImportExportZip();
        Toast.makeText(HomeActivity.this,
            "Import/Export Zip is now " +
            (BackupChannelsActivity.importExportZipEabled? "enabled" : "disabled"),
            Toast.LENGTH_SHORT).show();
        break;
      default:
          Toast.makeText(HomeActivity.this, "Selected: "+select, Toast.LENGTH_SHORT).show();
          break;
      }
        }
    };
      
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case MENU_SETTINGS:
      startActivity(new Intent(this, Pref.class));
      return true;
    case MENU_DEBUG:
      new AlertDialog.Builder(this)
        .setTitle("Debug Commands")
        .setItems(R.array.debug_commands,debugClickListener)
        .show();
      return true;
    }
    return super.onOptionsItemSelected(item);
  }

    @Override
    protected void tapHome() {
      //Toast.makeText(this, "Already Home", Toast.LENGTH_SHORT).show();
    SharedPreferences prefsPrivate = getSharedPreferences(Pref.HAPI_PREFS_FILE_NAME, Context.MODE_PRIVATE);
    SharedPreferences.Editor ed = prefsPrivate.edit();
    ed.putInt("homeActivity",0);
        ed.commit();
      startActivity(new Intent(this,MainActivity.class));
    }
    
    private void dbDowngrade(int version) {
    PodcastOpenHelper mHelper = new PodcastOpenHelper(this,version);
    /*SQLiteDatabase db =*/ mHelper.getWritableDatabase();
    //by this point, we should have already called the downgrade method in PodcastOpenHelper
    }
    
    private void toggleDebugLogging() {
      Log.setInitialLevel(Log.initialLevel()==Log.DEFAULT_LEVEL?Log.DEBUG:Log.DEFAULT_LEVEL);
    }
    
    private void toggleImportExportZip() {
      BackupChannelsActivity.importExportZipEabled = !BackupChannelsActivity.importExportZipEabled;
    }
}

class LabeledFrameHelper {
  Activity activity;
  String frameLabel;
  int orientation;
  FrameLayout frameLayout;
  TableLayout buttonTable;
  LinearLayout linLay1;
  LinearLayout linBut2 = null;
  int buttonCount = 0;
  boolean isLandscape = false;
  
  public LabeledFrameHelper(Activity a, String label, int or) {
    activity = a;
    frameLabel = label;
    orientation = or;
    isLandscape = (orientation==Configuration.ORIENTATION_LANDSCAPE);
  }
  
  FrameLayout frame() {
    if (frameLayout==null) {
      frameLayout = (FrameLayout)activity.getLayoutInflater().inflate(R.layout.framed_grid, null);
      linLay1 = (LinearLayout) frameLayout.findViewById(R.id.linearLayout1);
      TextView tv = (TextView) frameLayout.findViewById(R.id.borderText);
      tv.setText(frameLabel);
    }
    return frameLayout;
  }
  
  void addIntentButton(int iconId, int labelId, final Class<? extends Activity> intentClass) {
    addIntentButton(iconId, labelId, labelId, intentClass);
  }
  void addIntentButton(int iconId, int labelIdP, int labelIdL, final Class<? extends Activity> intentClass) {
    if ((buttonCount % 2)==0) {
      //Two buttons in each row, add a new row after every second button
      linBut2 = new LinearLayout(activity);
      linBut2.setOrientation(LinearLayout.HORIZONTAL);
      linLay1.addView(linBut2);
    }
    LinearLayout.LayoutParams layoutParams = isLandscape?
        new LinearLayout.LayoutParams(
            LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT) :
        new LinearLayout.LayoutParams(
            LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);
    layoutParams.weight = 1;  //make all buttons the same width
    Button b = new Button(activity);
    if (isLandscape) {
      b.setCompoundDrawablesWithIntrinsicBounds(0, iconId, 0, 0);
      b.setText(labelIdL);
    } else {
      b.setCompoundDrawablesWithIntrinsicBounds(iconId, 0, 0, 0);
      b.setText(labelIdP);
    }
    b.setBackgroundResource(R.drawable.home_button);
    b.setTextColor(Color.WHITE);
    b.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {            
                activity.startActivity(new Intent(activity, intentClass));
            }
        });
    b.setLayoutParams(layoutParams);
    linBut2.addView(b);
    buttonCount++;      
  }
}
Java Source Code List
