Twidere-App-Android-Twitter.../twidere.nyan/src/main/java/org/mariotaku/twidere/nyan/NyanDaydreamView.java

117 lines
3.5 KiB
Java

/*
* Twidere - Twitter client for Android
*
* Copyright (C) 2012-2014 Mariotaku Lee <mariotaku.lee@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.mariotaku.twidere.nyan;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.view.View;
public class NyanDaydreamView extends View {
private final InvalidateRunnable mInvalidateRunnable;
private final NyanDrawingHelper mNyanDrawingHelper;
public NyanDaydreamView(final Context context) {
this(context, null);
}
public NyanDaydreamView(final Context context, final AttributeSet attrs) {
this(context, attrs, 0);
}
public NyanDaydreamView(final Context context, final AttributeSet attrs, final int defStyleAttr) {
super(context, attrs, defStyleAttr);
setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
mNyanDrawingHelper = new DreamViewNyanDrawingHelper(this);
mInvalidateRunnable = new InvalidateRunnable(this);
}
public void setScale(final float scale) {
mNyanDrawingHelper.setScale(scale);
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
post(mInvalidateRunnable);
}
@Override
protected void onDetachedFromWindow() {
removeCallbacks(mInvalidateRunnable);
super.onDetachedFromWindow();
}
@Override
protected void onDraw(final Canvas canvas) {
super.onDraw(canvas);
mNyanDrawingHelper.dispatchDraw(canvas);
}
@Override
protected void onSizeChanged(final int w, final int h, final int oldw, final int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
mNyanDrawingHelper.dispatchSizeChanged(w, h);
}
private static final class DreamViewNyanDrawingHelper extends NyanDrawingHelper {
private final int mDisplayHeight;
private final NyanDaydreamView mView;
public DreamViewNyanDrawingHelper(final NyanDaydreamView view) {
super(view.getContext());
mView = view;
final Resources res = getResources();
final DisplayMetrics dm = res.getDisplayMetrics();
mDisplayHeight = dm.heightPixels;
}
@Override
protected int getRainbowYOffset() {
final int visibility = mView.getSystemUiVisibility();
if ((visibility & View.SYSTEM_UI_FLAG_HIDE_NAVIGATION) != 0) return 0;
return mDisplayHeight - getHeight();
}
}
private static final class InvalidateRunnable implements Runnable {
private final View mView;
InvalidateRunnable(final View view) {
mView = view;
}
@Override
public void run() {
mView.invalidate();
mView.postDelayed(this, 66);
}
}
}