altosdroid: Fix tab label height problems

With a newer android API versions, we can set the indicator to a View
instead of just a string. This lets us wrap the desired string in a
TextView and show just that for the indicator, making it exactly the
right size.

Signed-off-by: Keith Packard <keithp@keithp.com>

2 files changed, 31 insertions, 26 deletions

diff --git a/altosdroid/res/layout/tab_layout.xml b/altosdroid/res/layout/tab_layout.xml
new file mode 100644
index 00000000..2c21c648
--- /dev/null
+++ b/altosdroid/res/layout/tab_layout.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/customTabLayout"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+    <TextView
+        android:id="@+id/tabLabel"
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:textSize="13dp"
+        android:textColor="#ffffff"
+	android:gravity="center_horizontal"
+	android:background="#808080"
+        android:layout_centerVertical="true"
+        android:layout_centerHorizontal="true" />
+</RelativeLayout>
diff --git a/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroid.java b/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroid.java
index 27ebf206..b4fc3bc3 100644
--- a/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroid.java
+++ b/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroid.java
@@ -37,6 +37,7 @@ import android.os.Handler;
 import android.os.Message;
 import android.os.Messenger;
 import android.os.RemoteException;
+import android.content.res.Resources;
 import android.support.v4.app.FragmentActivity;
 import android.support.v4.app.FragmentManager;
 import android.util.DisplayMetrics;
@@ -46,6 +47,7 @@ import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.Window;
 import android.view.View;
+import android.view.LayoutInflater;
 import android.widget.TabHost;
 import android.widget.TextView;
 import android.widget.RelativeLayout;
@@ -407,6 +409,14 @@ public class AltosDroid extends FragmentActivity implements AltosUnitsListener {
 		return String.format(format, value);
 	}
 
+	private View create_tab_view(String label) {
+		LayoutInflater inflater = (LayoutInflater) this.getLayoutInflater();
+		View tab_view = inflater.inflate(R.layout.tab_layout, null);
+		TextView text_view = (TextView) tab_view.findViewById (R.id.tabLabel);
+		text_view.setText(label);
+		return tab_view;
+	}
+
 	@Override
 	public void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
@@ -428,32 +438,11 @@ public class AltosDroid extends FragmentActivity implements AltosUnitsListener {
 
 		mTabsAdapter = new TabsAdapter(this, mTabHost, mViewPager);
 
-		mTabsAdapter.addTab(mTabHost.newTabSpec("pad").setIndicator("Pad"), TabPad.class, null);
-		mTabsAdapter.addTab(mTabHost.newTabSpec("ascent").setIndicator("Ascent"), TabAscent.class, null);
-		mTabsAdapter.addTab(mTabHost.newTabSpec("descent").setIndicator("Descent"), TabDescent.class, null);
-		mTabsAdapter.addTab(mTabHost.newTabSpec("landed").setIndicator("Landed"), TabLanded.class, null);
-		mTabsAdapter.addTab(mTabHost.newTabSpec("map").setIndicator("Map"), TabMap.class, null);
-
-
-		// Scale the size of the Tab bar for different screen densities
-		// This probably won't be needed when we start supporting ICS+ tabs.
-		DisplayMetrics metrics = new DisplayMetrics();
-		getWindowManager().getDefaultDisplay().getMetrics(metrics);
-		int density = metrics.densityDpi;
-
-		if (density==DisplayMetrics.DENSITY_XHIGH)
-			tabHeight = 65;
-		else if (density==DisplayMetrics.DENSITY_HIGH)
-			tabHeight = 45;
-		else if (density==DisplayMetrics.DENSITY_MEDIUM)
-			tabHeight = 35;
-		else if (density==DisplayMetrics.DENSITY_LOW)
-			tabHeight = 25;
-		else
-			tabHeight = 65;
-
-		for (int i = 0; i < 5; i++)
-			mTabHost.getTabWidget().getChildAt(i).getLayoutParams().height = tabHeight;
+		mTabsAdapter.addTab(mTabHost.newTabSpec("pad").setIndicator(create_tab_view("Pad")), TabPad.class, null);
+		mTabsAdapter.addTab(mTabHost.newTabSpec("ascent").setIndicator(create_tab_view("Ascent")), TabAscent.class, null);
+		mTabsAdapter.addTab(mTabHost.newTabSpec("descent").setIndicator(create_tab_view("Descent")), TabDescent.class, null);
+		mTabsAdapter.addTab(mTabHost.newTabSpec("landed").setIndicator(create_tab_view("Landed")), TabLanded.class, null);
+		mTabsAdapter.addTab(mTabHost.newTabSpec("map").setIndicator(create_tab_view("Map")), TabMap.class, null);
 
 		// Set up the custom title
 		mTitle = (TextView) findViewById(R.id.title_left_text);