Reduced warnings by removing unused imports, unused variables and adding type arguments

Change-Id: I551403a94de87a2fdf24ac0175ce69b4c8a48d54

samples/ApiDemos/src/com/example/android/apis/view/Animation2.java

@@ -49,7 +49,7 @@ public class Animation2 extends Activity implements
         s.setOnItemSelectedListener(this);
     }
 
-    public void onItemSelected(AdapterView parent, View v, int position, long id) {
+    public void onItemSelected(AdapterView<?> parent, View v, int position, long id) {
         switch (position) {
 
         case 0:
@@ -79,7 +79,7 @@ public class Animation2 extends Activity implements
         }
     }
 
-    public void onNothingSelected(AdapterView parent) {
+    public void onNothingSelected(AdapterView<?> parent) {
     }
 
     private String[] mStrings = {

samples/ApiDemos/src/com/example/android/apis/view/Animation3.java

@@ -50,7 +50,7 @@ public class Animation3 extends Activity implements AdapterView.OnItemSelectedLi
         s.setOnItemSelectedListener(this);
     }
 
-    public void onItemSelected(AdapterView parent, View v, int position, long id) {
+    public void onItemSelected(AdapterView<?> parent, View v, int position, long id) {
         final View target = findViewById(R.id.target);
         final View targetParent = (View) target.getParent();
 
@@ -96,6 +96,6 @@ public class Animation3 extends Activity implements AdapterView.OnItemSelectedLi
         target.startAnimation(a);
     }
 
-    public void onNothingSelected(AdapterView parent) {
+    public void onNothingSelected(AdapterView<?> parent) {
     }
 }

samples/ApiDemos/src/com/example/android/apis/view/AutoComplete1.java

@@ -19,12 +19,9 @@ package com.example.android.apis.view;
 import com.example.android.apis.R;
 
 import android.app.Activity;
-import android.widget.Spinner;
 import android.widget.ArrayAdapter;
 import android.widget.AutoCompleteTextView;
 import android.os.Bundle;
-import android.view.View;
-
 
 public class AutoComplete1 extends Activity {
 

samples/ApiDemos/src/com/example/android/apis/view/AutoComplete6.java

@@ -19,12 +19,9 @@ package com.example.android.apis.view;
 import com.example.android.apis.R;
 
 import android.app.Activity;
-import android.widget.Spinner;
 import android.widget.ArrayAdapter;
 import android.widget.MultiAutoCompleteTextView;
 import android.os.Bundle;
-import android.view.View;
-
 
 public class AutoComplete6 extends Activity {
 

samples/ApiDemos/src/com/example/android/apis/view/Buttons1.java

@@ -22,9 +22,6 @@ import com.example.android.apis.R;
 
 import android.app.Activity;
 import android.os.Bundle;
-import android.widget.Spinner;
-import android.widget.ArrayAdapter;
-
 
 /**
  * A gallery of the different styles of buttons.

samples/ApiDemos/src/com/example/android/apis/view/ExpandableList1.java

@@ -24,7 +24,6 @@ import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.ContextMenu.ContextMenuInfo;
-import android.view.ViewGroup.MarginLayoutParams;
 import android.widget.AbsListView;
 import android.widget.BaseExpandableListAdapter;
 import android.widget.ExpandableListAdapter;

samples/ApiDemos/src/com/example/android/apis/view/Focus1.java

@@ -20,12 +20,10 @@ import com.example.android.apis.R;
 
 import android.app.Activity;
 import android.os.Bundle;
-import android.view.View;
 import android.webkit.WebView;
 import android.widget.ListView;
 import android.widget.ArrayAdapter;
 
-
 /**
  * Demonstrates the use of non-focusable views.
  */

samples/ApiDemos/src/com/example/android/apis/view/Gallery1.java

@@ -49,7 +49,7 @@ public class Gallery1 extends Activity {
         
         // Set a item click listener, and just Toast the clicked position
         g.setOnItemClickListener(new OnItemClickListener() {
-            public void onItemClick(AdapterView parent, View v, int position, long id) {
+            public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
                 Toast.makeText(Gallery1.this, "" + position, Toast.LENGTH_SHORT).show();
             }
         });

samples/ApiDemos/src/com/example/android/apis/view/ImageSwitcher1.java

@@ -56,11 +56,11 @@ public class ImageSwitcher1 extends Activity implements
         g.setOnItemSelectedListener(this);
     }
 
-    public void onItemSelected(AdapterView parent, View v, int position, long id) {
+    public void onItemSelected(AdapterView<?> parent, View v, int position, long id) {
         mSwitcher.setImageResource(mImageIds[position]);
     }
 
-    public void onNothingSelected(AdapterView parent) {
+    public void onNothingSelected(AdapterView<?> parent) {
     }
 
     public View makeView() {

samples/ApiDemos/src/com/example/android/apis/view/List13.java

@@ -52,7 +52,6 @@ public class List13 extends ListActivity implements ListView.OnScrollListener {
         private LayoutInflater mInflater;
         
         public SlowAdapter(Context context) {
-            mContext = context;
             mInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
         }
 
@@ -114,11 +113,6 @@ public class List13 extends ListActivity implements ListView.OnScrollListener {
 
             return text;
         }
-
-        /**
-         * Remember our context so we can use it when constructing views.
-         */
-        private Context mContext;
     }
     
     @Override

samples/ApiDemos/src/com/example/android/apis/view/List9.java

@@ -111,8 +111,8 @@ public class List9 extends ListActivity implements ListView.OnScrollListener {
     
    
     
-    public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
+    public void onScroll(AbsListView view, int firstVisibleItem,
-        int lastItem = firstVisibleItem + visibleItemCount - 1;
+            int visibleItemCount, int totalItemCount) {
         if (mReady) {
             char firstLetter = mStrings[firstVisibleItem].charAt(0);
             
@@ -120,8 +120,6 @@ public class List9 extends ListActivity implements ListView.OnScrollListener {
 
                 mShowing = true;
                 mDialogText.setVisibility(View.VISIBLE);
-               
-
             }
             mDialogText.setText(((Character)firstLetter).toString());
             mHandler.removeCallbacks(mRemoveWindow);
@@ -316,5 +314,4 @@ public class List9 extends ListActivity implements ListView.OnScrollListener {
             "Woodside Cabecou", "Xanadu", "Xynotyro", "Yarg Cornish",
             "Yarra Valley Pyramid", "Yorkshire Blue", "Zamorano",
             "Zanetti Grana Padano", "Zanetti Parmigiano Reggiano"};
-
 }

samples/ApiDemos/src/com/example/android/apis/view/RatingBar1.java

@@ -19,7 +19,6 @@ package com.example.android.apis.view;
 import android.app.Activity;
 import android.os.Bundle;
 import android.widget.RatingBar;
-import android.widget.SeekBar;
 import android.widget.TextView;
 
 import com.example.android.apis.R;

samples/ApiDemos/src/com/example/android/apis/view/ScrollView2.java

@@ -20,12 +20,10 @@ import com.example.android.apis.R;
 
 import android.app.Activity;
 import android.os.Bundle;
-import android.view.View;
 import android.widget.LinearLayout;
 import android.widget.TextView;
 import android.widget.Button;
 
-
 /**
  * Demonstrates wrapping a layout in a ScrollView.
  *

samples/ApiDemos/src/com/example/android/apis/view/TableLayout10.java

@@ -19,15 +19,9 @@ package com.example.android.apis.view;
 import com.example.android.apis.R;
 
 import android.app.Activity;
-import android.widget.TableLayout;
-import android.widget.Button;
 import android.os.Bundle;
-import android.view.View;
-
 
 public class TableLayout10 extends Activity {
-    private boolean mShrink;
-
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

samples/ApiDemos/src/com/example/android/apis/view/TableLayout11.java

@@ -25,8 +25,6 @@ import android.os.Bundle;
  * <p>This example shows how to use horizontal gravity in a table layout.</p>
  */
 public class TableLayout11 extends Activity {
-    private boolean mShrink;
-
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

samples/ApiDemos/src/com/example/android/apis/view/TableLayout12.java

@@ -25,8 +25,6 @@ import android.os.Bundle;
  * <p>This example shows how to use cell spanning in a table layout.</p>
  */
 public class TableLayout12 extends Activity {
-    private boolean mShrink;
-
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

samples/ApiDemos/src/com/example/android/apis/view/Tabs1.java

@@ -21,7 +21,6 @@ import android.os.Bundle;
 import android.widget.TabHost;
 import android.widget.TabHost.TabSpec;
 import android.view.LayoutInflater;
-import android.view.View;
 
 import com.example.android.apis.R;