Added floating button

OsmAnd/src/net/osmand/plus/activities/MainMenuActivity.java

@@ -6,6 +6,9 @@ import java.lang.ref.WeakReference;
 import java.util.List;
 import java.util.Random;
 
+import android.graphics.Color;
+import android.os.Build;
+import android.view.Gravity;
 import net.osmand.access.AccessibleAlertBuilder;
 import net.osmand.plus.OsmAndAppCustomization;
 import net.osmand.plus.OsmAndLocationProvider;
@@ -49,6 +52,7 @@ import android.widget.TextView;
 
 import com.actionbarsherlock.view.Menu;
 import com.actionbarsherlock.view.MenuItem;
+import net.osmand.plus.views.controls.FloatingActionButton;
 
 /**
  */
@@ -101,6 +105,21 @@ public class MainMenuActivity extends BaseDownloadActivity {
 		
 		boolean firstTime = initApp(this, getMyApplication());
 		addFragments(firstTime);
+
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
+			FloatingActionButton fabButton = new FloatingActionButton.Builder(this)
+					.withDrawable(getResources().getDrawable(R.drawable.ic_ac_settings))
+					.withButtonColor(Color.WHITE)
+					.withGravity(Gravity.BOTTOM | Gravity.RIGHT)
+					.withMargins(0, 0, 16, 16)
+					.create();
+			fabButton.setOnClickListener(new View.OnClickListener() {
+				@Override
+				public void onClick(View view) {
+					startMapActivity();
+				}
+			});
+		}
 	}
 	
 	@Override
@@ -248,8 +267,7 @@ public class MainMenuActivity extends BaseDownloadActivity {
 		final OsmAndAppCustomization appCustomization = app.getAppCustomization();
 		// restore follow route mode
 		if(app.getSettings().FOLLOW_THE_ROUTE.get() && !app.getRoutingHelper().isRouteCalculated()){
-			final Intent mapIndent = new Intent(this, appCustomization.getMapActivity());
-			startActivityForResult(mapIndent, 0);
+			startMapActivity();
 			return false;
 		}
 		boolean firstTime = false;
@@ -291,6 +309,11 @@ public class MainMenuActivity extends BaseDownloadActivity {
 		return firstTime;
 	}
 
+	private void startMapActivity() {
+		final Intent mapIndent = new Intent(this, getMyApplication().getAppCustomization().getMapActivity());
+		startActivityForResult(mapIndent, 0);
+	}
+
 	private void applicationInstalledFirstTime() {
 		boolean netOsmandWasInstalled = false;
 		try {

OsmAnd/src/net/osmand/plus/views/controls/FloatingActionButton.java

@@ -0,0 +1,193 @@
+package net.osmand.plus.views.controls;
+
+import android.animation.AnimatorSet;
+import android.animation.ObjectAnimator;
+import android.app.Activity;
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.Drawable;
+import android.view.Gravity;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.animation.AccelerateInterpolator;
+import android.view.animation.OvershootInterpolator;
+import android.widget.FrameLayout;
+
+/*
+* Created by John Hogan
+* https://gist.github.com/Jogan/9def6110edf3247825c9
+ */
+
+public class FloatingActionButton extends View {
+
+	final static OvershootInterpolator overshootInterpolator = new OvershootInterpolator();
+	final static AccelerateInterpolator accelerateInterpolator = new AccelerateInterpolator();
+
+	Context context;
+	Paint mButtonPaint;
+	Paint mDrawablePaint;
+	Bitmap mBitmap;
+	boolean mHidden = false;
+
+	public FloatingActionButton(Context context) {
+		super(context);
+		this.context = context;
+		init(Color.WHITE);
+	}
+
+	public void setFloatingActionButtonColor(int FloatingActionButtonColor) {
+		init(FloatingActionButtonColor);
+	}
+
+	public void setFloatingActionButtonDrawable(Drawable FloatingActionButtonDrawable) {
+		mBitmap = ((BitmapDrawable) FloatingActionButtonDrawable).getBitmap();
+		invalidate();
+	}
+
+	public void init(int FloatingActionButtonColor) {
+		setWillNotDraw(false);
+		setLayerType(View.LAYER_TYPE_SOFTWARE, null);
+
+		mButtonPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
+		mButtonPaint.setColor(FloatingActionButtonColor);
+		mButtonPaint.setStyle(Paint.Style.FILL);
+		mButtonPaint.setShadowLayer(10.0f, 0.0f, 3.5f, Color.argb(100, 0, 0, 0));
+		mDrawablePaint = new Paint(Paint.ANTI_ALIAS_FLAG);
+
+		invalidate();
+	}
+
+	@Override
+	protected void onDraw(Canvas canvas) {
+		setClickable(true);
+		canvas.drawCircle(getWidth() / 2, getHeight() / 2, (float) (getWidth() / 2.6), mButtonPaint);
+		canvas.drawBitmap(mBitmap, (getWidth() - mBitmap.getWidth()) / 2,
+				(getHeight() - mBitmap.getHeight()) / 2, mDrawablePaint);
+	}
+
+	@Override
+	public boolean onTouchEvent(MotionEvent event) {
+		if (event.getAction() == MotionEvent.ACTION_UP) {
+			setAlpha(1.0f);
+		} else if (event.getAction() == MotionEvent.ACTION_DOWN) {
+			setAlpha(0.6f);
+		}
+		return super.onTouchEvent(event);
+	}
+
+	public void hideFloatingActionButton() {
+		if (!mHidden) {
+			ObjectAnimator scaleX = ObjectAnimator.ofFloat(this, "scaleX", 1, 0);
+			ObjectAnimator scaleY = ObjectAnimator.ofFloat(this, "scaleY", 1, 0);
+			AnimatorSet animSetXY = new AnimatorSet();
+			animSetXY.playTogether(scaleX, scaleY);
+			animSetXY.setInterpolator(accelerateInterpolator);
+			animSetXY.setDuration(100);
+			animSetXY.start();
+			mHidden = true;
+		}
+	}
+
+	public void showFloatingActionButton() {
+		if (mHidden) {
+			ObjectAnimator scaleX = ObjectAnimator.ofFloat(this, "scaleX", 0, 1);
+			ObjectAnimator scaleY = ObjectAnimator.ofFloat(this, "scaleY", 0, 1);
+			AnimatorSet animSetXY = new AnimatorSet();
+			animSetXY.playTogether(scaleX, scaleY);
+			animSetXY.setInterpolator(overshootInterpolator);
+			animSetXY.setDuration(200);
+			animSetXY.start();
+			mHidden = false;
+		}
+	}
+
+	public boolean isHidden() {
+		return mHidden;
+	}
+
+	static public class Builder {
+		private FrameLayout.LayoutParams params;
+		private final Activity activity;
+		int gravity = Gravity.BOTTOM | Gravity.RIGHT; // default bottom right
+		Drawable drawable;
+		int color = Color.WHITE;
+		int size = 0;
+		float scale = 0;
+
+		public Builder(Activity context) {
+			scale = context.getResources().getDisplayMetrics().density;
+			size = convertToPixels(72, scale); // default size is 72dp by 72dp
+			params = new FrameLayout.LayoutParams(size, size);
+			params.gravity = gravity;
+
+			this.activity = context;
+		}
+
+		/**
+		 * Sets the gravity for the FAB
+		 */
+		public Builder withGravity(int gravity) {
+			this.gravity = gravity;
+			return this;
+		}
+
+		/**
+		 * Sets the margins for the FAB in dp
+		 */
+		public Builder withMargins(int left, int top, int right, int bottom) {
+			params.setMargins(
+					convertToPixels(left, scale),
+					convertToPixels(top, scale),
+					convertToPixels(right, scale),
+					convertToPixels(bottom, scale));
+			return this;
+		}
+
+		/**
+		 * Sets the FAB drawable
+		 */
+		public Builder withDrawable(final Drawable drawable) {
+			this.drawable = drawable;
+			return this;
+		}
+
+		/**
+		 * Sets the FAB color
+		 */
+		public Builder withButtonColor(final int color) {
+			this.color = color;
+			return this;
+		}
+
+		/**
+		 * Sets the FAB size in dp
+		 */
+		public Builder withButtonSize(int size) {
+			size = convertToPixels(size, scale);
+			params = new FrameLayout.LayoutParams(size, size);
+			return this;
+		}
+
+		public FloatingActionButton create() {
+			final FloatingActionButton button = new FloatingActionButton(activity);
+			button.setFloatingActionButtonColor(this.color);
+			button.setFloatingActionButtonDrawable(this.drawable);
+			params.gravity = this.gravity;
+			ViewGroup root = (ViewGroup) activity.findViewById(android.R.id.content);
+			root.addView(button, params);
+			return button;
+		}
+
+		// The calculation (value * scale + 0.5f) is a widely used to convert to dps to pixel units
+		// based on density scale
+		// see developer.android.com (Supporting Multiple Screen Sizes)
+		private int convertToPixels(int dp, float scale){
+			return (int) (dp * scale + 0.5f) ;
+		}
+	}
+}