android janitor... remove unnecessary imports, variables and casts

also no need to wrap primitives

Change-Id: I6e22b2bfdb2b8b366dd6f50d995b573c770f0b5a

android/source/src/java/org/libreoffice/ColorPaletteAdapter.java

@@ -28,8 +28,7 @@ public class ColorPaletteAdapter extends RecyclerView.Adapter<ColorPaletteAdapte
     @Override
     public ColorPaletteViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
         View item = LayoutInflater.from(mContext).inflate(R.layout.colorbox, parent, false);
-        ColorPaletteViewHolder holder = new ColorPaletteViewHolder(item);
-        return holder;
+        return new ColorPaletteViewHolder(item);
     }
 
 

android/source/src/java/org/libreoffice/ColorPickerAdapter.java

@@ -33,8 +33,7 @@ public class ColorPickerAdapter extends RecyclerView.Adapter<ColorPickerAdapter.
     @Override
     public ColorPickerViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
         View item = LayoutInflater.from(mContext).inflate(R.layout.colorbox, parent, false);
-        ColorPickerViewHolder holder = new ColorPickerViewHolder(item);
-        return holder;
+        return new ColorPickerViewHolder(item);
 
     }
 

android/source/src/java/org/libreoffice/FontController.java

 package org.libreoffice;
 
-import android.app.Activity;
 import android.graphics.Color;
 import android.graphics.Rect;
 import android.support.design.widget.BottomSheetBehavior;
@@ -249,7 +248,7 @@ public class FontController implements AdapterView.OnItemSelectedListener {
     }
 
     private void setupColorPicker(){
-        LinearLayout colorPickerLayout = (LinearLayout)mActivity.findViewById(R.id.toolbar_color_picker);
+        LinearLayout colorPickerLayout = mActivity.findViewById(R.id.toolbar_color_picker);
 
         RecyclerView recyclerView = colorPickerLayout.findViewById(R.id.fontColorView);
         GridLayoutManager gridLayoutManager = new GridLayoutManager(mActivity, 11, GridLayoutManager.VERTICAL, true);

android/source/src/java/org/libreoffice/LibreOfficeMainActivity.java

@@ -16,7 +16,6 @@ import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Build;
 import android.os.Bundle;
-import android.os.Handler;
 import android.preference.PreferenceManager;
 import android.support.design.widget.BottomSheetBehavior;
 import android.support.design.widget.Snackbar;

android/source/src/java/org/libreoffice/TileProvider.java

@@ -13,7 +13,6 @@ import android.graphics.Bitmap;
 import android.graphics.PointF;
 import android.view.KeyEvent;
 
-import org.libreoffice.kit.Document;
 import org.mozilla.gecko.gfx.CairoImage;
 import org.mozilla.gecko.gfx.IntSize;
 

android/source/src/java/org/libreoffice/ui/LibreOfficeUIActivity.java

@@ -830,7 +830,7 @@ public class LibreOfficeUIActivity extends AppCompatActivity implements Settings
         SharedPreferences defaultPrefs = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
         viewMode = Integer.valueOf(defaultPrefs.getString(EXPLORER_VIEW_TYPE_KEY, ""+ GRID_VIEW));
         filterMode = Integer.valueOf(defaultPrefs.getString(FILTER_MODE_KEY , "-1"));
-        showHiddenFiles = Boolean.valueOf(defaultPrefs.getBoolean(ENABLE_SHOW_HIDDEN_FILES_KEY, false));
+        showHiddenFiles = defaultPrefs.getBoolean(ENABLE_SHOW_HIDDEN_FILES_KEY, false);
 
         Intent i = this.getIntent();
         if (i.hasExtra(CURRENT_DIRECTORY_KEY)) {