package cn.flightfeather.thirdapp.view;
|
|
import android.content.Context;
|
import android.util.Log;
|
import android.view.View;
|
|
import cn.flightfeather.thirdapp.util.ScreenUtils;
|
|
|
/**
|
* Created by note_ff_1602 on 2017/7/25.
|
*/
|
|
public class VerticalStackTransformer extends VerticalBaseTransformer {
|
|
private Context context;
|
private int spaceBetweenFirAndSecWith = 10 * 2;//第一张卡片和第二张卡片宽度差 dp单位
|
private int spaceBetweenFirAndSecHeight = 10;//第一张卡片和第二张卡片高度差 dp单位
|
|
public VerticalStackTransformer(Context context) {
|
this.context = context;
|
}
|
|
public VerticalStackTransformer(Context context, int spaceBetweenFirAndSecWith, int spaceBetweenFirAndSecHeight) {
|
this.context = context;
|
this.spaceBetweenFirAndSecWith = spaceBetweenFirAndSecWith;
|
this.spaceBetweenFirAndSecHeight = spaceBetweenFirAndSecHeight;
|
}
|
|
@Override
|
protected void onTransform(View page, float position) {
|
if (position <= 0.0f) {
|
page.setAlpha(1.0f);
|
Log.e("onTransform", "position <= 0.0f ==>" + position);
|
page.setTranslationY(0f);
|
//控制停止滑动切换的时候，只有最上面的一张卡片可以点击
|
page.setClickable(true);
|
} else if (position <= 3.0f) {
|
Log.e("onTransform", "position <= 3.0f ==>" + position);
|
float scale = (float) (page.getWidth() - ScreenUtils.dp2px(context, spaceBetweenFirAndSecWith * position)) / (float) (page.getWidth());
|
//控制下面卡片的可见度
|
page.setAlpha(1.0f);
|
//控制停止滑动切换的时候，只有最上面的一张卡片可以点击
|
page.setClickable(false);
|
page.setPivotX(page.getWidth() / 2f);
|
page.setPivotY(page.getHeight() / 2f);
|
page.setScaleX(scale);
|
page.setScaleY(scale);
|
page.setTranslationY(-page.getHeight() * position + (page.getHeight() * 0.5f) * (1 - scale) + ScreenUtils.dp2px(context, spaceBetweenFirAndSecHeight) * position);
|
}
|
}
|
}
|
