Android新闻公告切换效果(上下滚动&左右滚动) |
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Android新闻公告切换效果(上下滚动&左右滚动)
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今日，看到淘宝的一个效果，之前做的App中没做过，就实现了一下。使用的是原生的控件TextSwitcher，进行了简单的封装处理。 废话少说，呈上代码。 package com.panghu.view; import android.content.Context; import android.os.Handler; import android.os.Message; import android.util.AttributeSet; import android.view.LayoutInflater; import android.view.View; import android.view.animation.Animation; import android.view.animation.AnimationUtils; import android.widget.ImageView; import android.widget.TextSwitcher; import android.widget.TextView; import android.widget.ViewSwitcher; import com.panghu.R; /** * * 公告新闻切换 * * Wetchat : ljphhj * Github : https://github.com/xiaoyaomeng * Autor : lijiangping */ public class CustomTextSwitcher extends TextSwitcher implements ViewSwitcher.ViewFactory { private Context mContext; private String[] mData; private final long DEFAULT_TIME_SWITCH_INTERVAL = 1000;//1s private long mTimeInterval = DEFAULT_TIME_SWITCH_INTERVAL; private int mCurrentIndex = 0; public CustomTextSwitcher(Context context, AttributeSet attrs) { super(context, attrs); this.mContext = context; setFactory(this); } public CustomTextSwitcher setInAnimation(int animationResId){ Animation animation = AnimationUtils.loadAnimation(this.mContext, animationResId); setInAnimation(animation); return this; } public CustomTextSwitcher setOutAnimation(int animationResId){ Animation animation = AnimationUtils.loadAnimation(this.mContext, animationResId); setOutAnimation(animation); return this; } /** * 通知/公告数据绑定 * @param data * @return */ public CustomTextSwitcher bindData(String[] data){ this.mData = data; return this; } public void startSwitch(long timeInterval){ this.mTimeInterval = timeInterval; if (mData != null && mData.length != 0) { mSwitchHandler.sendEmptyMessage(0); }else{ throw new RuntimeException("data is empty"); } } /** * 工厂类中创建TextView供给TextSwitcher使用 * @return */ @Override public View makeView() { TextView view = new TextView(this.mContext); return view; } private Handler mSwitchHandler = new Handler(){ @Override public void dispatchMessage(Message msg) { super.dispatchMessage(msg); int index = mCurrentIndex % mData.length; mCurrentIndex++; setText(mData[index]); sendEmptyMessageDelayed(0, mTimeInterval); } }; }Demo下载地址： https://github.com/xiaoyaomeng/CustomTextSwitcher |
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