package com.android.systemui.statusbar.notification;
import android.annotation.Nullable;
import android.content.Context;
import android.graphics.Outline;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewOutlineProvider;
import android.widget.LinearLayout;
import com.android.systemui.R;
import com.android.systemui.statusbar.AlphaOptimizedFrameLayout;
public class FakeShadowView extends AlphaOptimizedFrameLayout {
public static final float SHADOW_SIBLING_TRESHOLD = 0.1f;
private final int mShadowMinHeight;
private View mFakeShadow;
private float mOutlineAlpha;
public FakeShadowView(Context context) {
this(context, null);
}
public FakeShadowView(Context context, @Nullable AttributeSet attrs) {
this(context, attrs, 0);
}
public FakeShadowView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
this(context, attrs, defStyleAttr, 0);
}
public FakeShadowView(Context context, @Nullable AttributeSet attrs, int defStyleAttr,
int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
mFakeShadow = new View(context);
mFakeShadow.setVisibility(INVISIBLE);
mFakeShadow.setLayoutParams(new LinearLayout.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT,
(int) (48 * getResources().getDisplayMetrics().density)));
mFakeShadow.setOutlineProvider(new ViewOutlineProvider() {
@Override
public void getOutline(View view, Outline outline) {
outline.setRect(0, 0, getWidth(), mFakeShadow.getHeight());
outline.setAlpha(mOutlineAlpha);
}
});
addView(mFakeShadow);
mShadowMinHeight = Math.max(1, context.getResources()
.getDimensionPixelSize(R.dimen.notification_divider_height));
}
public void setFakeShadowTranslationZ(float fakeShadowTranslationZ, float outlineAlpha,
int shadowYEnd, int outlineTranslation) {
if (fakeShadowTranslationZ == 0.0f) {
mFakeShadow.setVisibility(INVISIBLE);
} else {
mFakeShadow.setVisibility(VISIBLE);
fakeShadowTranslationZ = Math.max(mShadowMinHeight, fakeShadowTranslationZ);
mFakeShadow.setTranslationZ(fakeShadowTranslationZ);
mFakeShadow.setTranslationX(outlineTranslation);
mFakeShadow.setTranslationY(shadowYEnd - mFakeShadow.getHeight());
if (outlineAlpha != mOutlineAlpha) {
mOutlineAlpha = outlineAlpha;
mFakeShadow.invalidateOutline();
}
}
}
}