Added breadbrumb trail when going down in fragments

2 files changed, 107 insertions, 16 deletions

diff --git a/subsonic-android/src/github/daneren2005/dsub/activity/SubsonicActivity.java b/subsonic-android/src/github/daneren2005/dsub/activity/SubsonicActivity.java
index 4e116266..a0836941 100644
--- a/subsonic-android/src/github/daneren2005/dsub/activity/SubsonicActivity.java
+++ b/subsonic-android/src/github/daneren2005/dsub/activity/SubsonicActivity.java
@@ -14,6 +14,11 @@ import android.support.v4.app.FragmentTransaction;
 import android.support.v4.view.ViewPager;

 import android.util.Log;

 import android.view.KeyEvent;

+import android.view.View;

+import android.widget.AdapterView;

+import android.widget.AdapterView.OnItemSelectedListener;

+import android.widget.ArrayAdapter;

+import android.widget.Spinner;

 import com.actionbarsherlock.app.ActionBar;

 import com.actionbarsherlock.app.ActionBar.Tab;

 import com.actionbarsherlock.app.ActionBar.TabListener;

@@ -34,7 +39,7 @@ import java.io.PrintWriter;
 import java.util.ArrayList;

 import java.util.List;

 

-public class SubsonicActivity extends SherlockFragmentActivity {

+public class SubsonicActivity extends SherlockFragmentActivity implements OnItemSelectedListener {

 	private static final String TAG = SubsonicActivity.class.getSimpleName();

 	private static ImageLoader IMAGE_LOADER;

 	protected static String theme;

@@ -45,6 +50,8 @@ public class SubsonicActivity extends SherlockFragmentActivity {
 	protected List<Integer> backStackId = new ArrayList<Integer>();

 	protected SubsonicFragment currentFragment;

 	protected int currentFragmentId;

+	Spinner actionBarSpinner;

+	ArrayAdapter<CharSequence> spinnerAdapter;

 

 	@Override

 	protected void onCreate(Bundle bundle) {

@@ -54,6 +61,20 @@ public class SubsonicActivity extends SherlockFragmentActivity {
 		startService(new Intent(this, DownloadServiceImpl.class));

 		setVolumeControlStream(AudioManager.STREAM_MUSIC);

 	}

+	

+	@Override

+	protected void onPostCreate(Bundle bundle) {

+		super.onPostCreate(bundle);

+		

+		View actionbar = getLayoutInflater().inflate(R.layout.actionbar_spinner, null);

+		actionBarSpinner = (Spinner)actionbar.findViewById(R.id.spinner);

+		spinnerAdapter = new ArrayAdapter(this, android.R.layout.simple_spinner_item);

+		spinnerAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

+		actionBarSpinner.setOnItemSelectedListener(this);

+		actionBarSpinner.setAdapter(spinnerAdapter);

+

+		getSupportActionBar().setCustomView(actionbar);

+	}

 

 	@Override

 	protected void onResume() {

@@ -147,24 +168,40 @@ public class SubsonicActivity extends SherlockFragmentActivity {
 		return super.onKeyDown(keyCode, event);

 	}

 	

+	@Override

+	public void setTitle(CharSequence title) {

+		if(pagerAdapter != null) {

+			pagerAdapter.recreateSpinner();

+		} else {

+			recreateSpinner();

+		}

+	}

+	

+	@Override

+	public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {

+		int top = spinnerAdapter.getCount() - 1;

+		if(position < top) {

+			for(int i = top; i > position; i--) {

+				if(pagerAdapter != null) {

+					pagerAdapter.removeCurrent();

+				} else {

+					removeCurrent();

+				}

+			}

+		}

+	}

+

+	@Override

+	public void onNothingSelected(AdapterView<?> parent) {

+		

+	}

+	

 	public boolean onBackPressedSupport() {

 		if(pagerAdapter != null) {

 			return pagerAdapter.onBackPressed();

 		} else {

 			if(backStack.size() > 0) {

-				if(currentFragment != null) {

-					currentFragment.setPrimaryFragment(false);

-				}

-				Fragment oldFrag = (Fragment)currentFragment;

-

-				currentFragment = (SubsonicFragment) backStack.remove(backStack.size() - 1);

-				currentFragmentId = backStackId.remove(backStackId.size() - 1);

-				currentFragment.setPrimaryFragment(true);

-				invalidateOptionsMenu();

-

-				FragmentTransaction trans = getSupportFragmentManager().beginTransaction();

-				trans.remove(oldFrag);

-				trans.commit();

+				removeCurrent();

 				return false;

 			} else {

 				return true;

@@ -190,6 +227,38 @@ public class SubsonicActivity extends SherlockFragmentActivity {
 			FragmentTransaction trans = getSupportFragmentManager().beginTransaction();

 			trans.add(id, fragment);

 			trans.commit();

+			recreateSpinner();

+		}

+	}

+	private void removeCurrent() {

+		if(currentFragment != null) {

+			currentFragment.setPrimaryFragment(false);

+		}

+		Fragment oldFrag = (Fragment)currentFragment;

+

+		currentFragment = (SubsonicFragment) backStack.remove(backStack.size() - 1);

+		currentFragmentId = backStackId.remove(backStackId.size() - 1);

+		currentFragment.setPrimaryFragment(true);

+		invalidateOptionsMenu();

+

+		FragmentTransaction trans = getSupportFragmentManager().beginTransaction();

+		trans.remove(oldFrag);

+		trans.commit();

+		recreateSpinner();

+	}

+	

+	private void recreateSpinner() {

+		if(backStack.size() > 0) {

+			spinnerAdapter.clear();

+			for(int i = 0; i < backStack.size(); i++) {

+				spinnerAdapter.add(backStack.get(i).getTitle());

+			}

+			spinnerAdapter.add(currentFragment.getTitle());

+			spinnerAdapter.notifyDataSetChanged();

+			actionBarSpinner.setSelection(spinnerAdapter.getCount() - 1);

+			getSupportActionBar().setDisplayShowCustomEnabled(true);

+		} else {

+			getSupportActionBar().setDisplayShowCustomEnabled(false);

 		}

 	}

 	

@@ -406,6 +475,7 @@ public class SubsonicActivity extends SherlockFragmentActivity {
 				currentFragment.setPrimaryFragment(true);

 			}

 			activity.invalidateOptionsMenu();

+			recreateSpinner();

 		}

 

 		public void addTab(CharSequence title, Class fragmentClass, Bundle args) {

@@ -436,6 +506,7 @@ public class SubsonicActivity extends SherlockFragmentActivity {
 			FragmentTransaction trans = getSupportFragmentManager().beginTransaction();

 			trans.add(id, fragment);

 			trans.commit();

+			recreateSpinner();

 		}

 		

 		public void removeCurrent() {

@@ -458,6 +529,7 @@ public class SubsonicActivity extends SherlockFragmentActivity {
 			List fragStack = (List)frags.get(currentPosition);

 			if(fragStack.size() > 1) {

 				removeCurrent();

+				recreateSpinner();

 				return false;

 			} else {

 				if(currentPosition == 0) {

@@ -469,6 +541,22 @@ public class SubsonicActivity extends SherlockFragmentActivity {
 			}

 		}

 		

+		private void recreateSpinner() {

+			List fragStack = (List)frags.get(currentPosition);

+			if(fragStack.size() > 1) {

+				spinnerAdapter.clear();

+				for(int i = 0; i < fragStack.size(); i++) {

+					SubsonicFragment frag = (SubsonicFragment)fragStack.get(i);

+					spinnerAdapter.add(frag.getTitle());

+				}

+				spinnerAdapter.notifyDataSetChanged();

+				actionBarSpinner.setSelection(spinnerAdapter.getCount() - 1);

+				actionBar.setDisplayShowCustomEnabled(true);

+			} else {

+				actionBar.setDisplayShowCustomEnabled(false);

+			}

+		}

+		

 		public void invalidate() {

 			for (int i = 0; i < frags.size(); i++) {

 				List fragStack = (List)frags.get(i);

diff --git a/subsonic-android/src/github/daneren2005/dsub/fragments/SubsonicFragment.java b/subsonic-android/src/github/daneren2005/dsub/fragments/SubsonicFragment.java
index 46e4f8c4..3d938dc9 100644
--- a/subsonic-android/src/github/daneren2005/dsub/fragments/SubsonicFragment.java
+++ b/subsonic-android/src/github/daneren2005/dsub/fragments/SubsonicFragment.java
@@ -329,14 +329,17 @@ public class SubsonicFragment extends SherlockFragment {
 		return SubsonicActivity.getStaticImageLoader(context);

 	}

 

-	protected void setTitle(CharSequence title) {

+	public void setTitle(CharSequence title) {

 		this.title = title;

 		context.setTitle(title);

 	}

-	protected void setTitle(int title) {

+	public void setTitle(int title) {

 		this.title = context.getResources().getString(title);

 		context.setTitle(this.title);

 	}

+	public CharSequence getTitle() {

+		return this.title;

+	}

 

 	protected void warnIfNetworkOrStorageUnavailable() {

 		if (!Util.isExternalStoragePresent()) {