textview 文字轮播 并实现动态修改文字大小和颜色

网上不少实现文字轮播的思路啊,
有

ViewFlipper思路

这个要可以实现轮播效果,但是动态修改文字颜色,我修改完后,我感到不满意,寻找其他思路,如果你想要代码我给你,这个不完美的解决了动态设置文字颜色.,为啥呢,你看看标颜色的代码,我用两条路出发解决了这个问题,虽然效果看不出来,但是我总感觉怪怪的,有人说我直接修改textColor 不就行了,为啥要写

for (int i =0 ;i < notices.size() ; i++){ Logger.e("xiugaiyasne",i+"fzwk"); ((TextView) (getChildAt(i).findViewWithTag("lbnr"))).setTextColor(textColor); }以为只写修改textColor .颜色不会立马变回来,太丑了.
/*** @author:lkk on2020-08-01_23:05:02*/
public class MyView extends ViewFlipper {private int interval = 3000;private boolean singleLine = true;private int textSize = 20;private int TimetextSize = 20;private int textColor = Color.BLUE;private boolean ischangetextcolor= false;private int TimetextColor = Color.RED;private int animDuration = 1000;@AnimResprivate int inAnimResId = R.anim.anim_notificationview_bottom_in;@AnimResprivate int outAnimResId = R.anim.anim_notificationview_top_out;private List<String> notices = new ArrayList<>();private List<String> noticestime = new ArrayList<>();private int position = 0;private OnItemClickListener onItemClickListener;public MyNotificationView(Context context) {super(context);}public MyNotificationView(Context context, AttributeSet attrs) {super(context, attrs);init(context, attrs);}private void init(Context context, AttributeSet attrs) {TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.MyNotificationView);interval = typedArray.getInteger(R.styleable.MyNotificationView_mvInterval, interval);singleLine = typedArray.getBoolean(R.styleable.MyNotificationView_mvSingleLine, false);if (typedArray.hasValue(R.styleable.MyNotificationView_mvTextSize)) {textSize = (int) typedArray.getDimension(R.styleable.MyNotificationView_mvTextSize, textSize);textSize = px2sp(context, textSize);}if (typedArray.hasValue(R.styleable.MyNotificationView_mvTimeTextSize)) {TimetextSize = (int) typedArray.getDimension(R.styleable.MyNotificationView_mvTimeTextSize, textSize);TimetextSize = px2sp(context, TimetextSize);}textColor = typedArray.getColor(R.styleable.MyNotificationView_mvTextColor, textColor);TimetextColor = typedArray.getColor(R.styleable.MyNotificationView_mvTimeTextColor, TimetextColor);typedArray.recycle();setFlipInterval(interval);}// 将px值转换为sp值private   int px2sp(Context context, float pxValue) {final float fontScale = context.getResources().getDisplayMetrics().scaledDensity;return (int) (pxValue / fontScale + 0.5f);}public static <T> boolean isEmpty(List<T> list) {if (list == null || list.size() == 0) {return true;}return false;}public void setOnItemClickListener(OnItemClickListener onItemClickListener) {this.onItemClickListener = onItemClickListener;}public interface OnItemClickListener {void onItemClick(int position);}public int getPosition() {return (int) getCurrentView().getTag();}  public void setMyTextColor(int textColor) {this.textColor = textColor;
//        ((TextView) (getCurrentView().findViewWithTag("lbnr"))).setTextColor(textColor);for (int i =0 ;i < notices.size() ; i++){Logger.e("xiugaiyasne",i+"fzwk");((TextView) (getChildAt(i).findViewWithTag("lbnr"))).setTextColor(textColor);}}public void setNotices(List<String> notices) {this.notices = notices;}public void setNoticesTime(List<String> mnoticestime) {this.noticestime = mnoticestime;}public void setList(List<String> notices, List<String> noticestime) {if (isEmpty(notices)){addView(createLayout("",""));}else {setNotices(notices);setNoticesTime(noticestime);StartAnimation(inAnimResId, outAnimResId);}}private void StartAnimation(final int inAnimResId, final int outAnimResId) {post(new Runnable() {@Overridepublic void run() {start(inAnimResId, outAnimResId);}});}private boolean isAnimStart = false;private boolean isAnimStart2= false;private void start(final @AnimRes int inAnimResId, final @AnimRes int outAnimResID) {removeAllViews();clearAnimation();
//        position = 0;addView(createLayout(notices.get(position),noticestime.get(position)));if (notices.size() > 1) {setInAndOutAnimation(inAnimResId, outAnimResID);startFlipping();}if (getInAnimation() != null) {getInAnimation().setAnimationListener(new Animation.AnimationListener() {@Overridepublic void onAnimationStart(Animation animation) {if (isAnimStart) {animation.cancel();}isAnimStart = true;}@Overridepublic void onAnimationEnd(Animation animation) {position++;if (position >= notices.size()) {position = 0;}View view = createLayout(notices.get(position),noticestime.get(position));if (view.getParent() == null) {addView(view);}isAnimStart = false;}@Overridepublic void onAnimationRepeat(Animation animation) {}});}}private View createLayout(CharSequence text, CharSequence texttime) {RelativeLayout relativeLayout = (RelativeLayout) getChildAt((getDisplayedChild() + 1) % 3);TextView textView = null;TextView textView02 = null;if (relativeLayout == null) {relativeLayout = new RelativeLayout(getContext());relativeLayout.setGravity(RelativeLayout.CENTER_IN_PARENT);}else {if (relativeLayout.getChildCount()>0)  relativeLayout.removeAllViews();relativeLayout.setGravity(RelativeLayout.CENTER_IN_PARENT);}RelativeLayout.LayoutParams mLayoutParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT,RelativeLayout.LayoutParams.WRAP_CONTENT);RelativeLayout.LayoutParams mLayoutParams02 = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT,RelativeLayout.LayoutParams.WRAP_CONTENT);textView = new TextView(getContext());textView02 = new TextView(getContext());textView.setTextColor(textColor);textView.setTextSize(textSize);textView.setSingleLine(singleLine);textView.setTag("lbnr");textView02.setTextColor(TimetextColor);textView02.setTextSize(TimetextSize);textView02.setSingleLine(singleLine);textView02.setTag("lbsj");textView.setMaxEms(16);textView.setEllipsize(TextUtils.TruncateAt.END);if (TextUtils.isEmpty(text)) {textView.setText("点击使用搜受功能");}else {textView.setText(text);}if (!TextUtils.isEmpty(texttime)) textView02.setText(texttime);relativeLayout.setTag(position);mLayoutParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT);mLayoutParams.addRule(RelativeLayout.CENTER_VERTICAL);relativeLayout.addView(textView,mLayoutParams);mLayoutParams02.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);mLayoutParams02.addRule(RelativeLayout.CENTER_VERTICAL);relativeLayout.addView(textView02,mLayoutParams02);relativeLayout.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {if (onItemClickListener != null) {onItemClickListener.onItemClick(getPosition());}}});return relativeLayout;}/*** 设置进入动画和离开动画** @param inAnimResId  进入动画的resID* @param outAnimResID 离开动画的resID*/private void setInAndOutAnimation(@AnimRes int inAnimResId, @AnimRes int outAnimResID) {Animation inAnim = AnimationUtils.loadAnimation(getContext(), inAnimResId);inAnim.setDuration(animDuration);setInAnimation(inAnim);Animation outAnim = AnimationUtils.loadAnimation(getContext(), outAnimResID);outAnim.setDuration(animDuration);setOutAnimation(outAnim);}
}

至于动画的xml你自己随便搜一个就行,我知道你也不会写,能看到我这博客.....我也不想让你太方便哈哈哈.

TextSwitcher思路
这个思路我喜欢,因为这个就是一个简单的思路,是android官方的给实现轮播最简单的方案吧,看代码
修改颜色,直接找到工厂中的两个来回轮换的textview,直接设置颜色,完美解决了,(这个局限性就是只能写文字轮播啊,android还给了一个图片轮播的父类imageSwitcher.但是上一个方案啥都能轮播,多复杂都行,你权衡下)

*** @author:lkk on2020-08-05 20:23:05*/
public class TextSwitchView extends TextSwitcher implements ViewSwitcher.ViewFactory{private MyNotificationView.OnItemClickListener onItemClickListener;private int index= -1;private int  flag= 0;private Context context;private int textColor = Color.WHITE;private int textSize = 14;private String[] resources = {"特色理财","特色存款","金雪球","多人转账"};private Timer timer;@SuppressLint("HandlerLeak")private Handler mHandler = new Handler(){@Overridepublic void handleMessage(Message msg) {switch(msg.what) {case 1:index = next();updateText();break;}super.handleMessage(msg);}};//自定义View的构造方法public TextSwitchView(Context context) {super(context);this.context = context;init();}public TextSwitchView(Context context, AttributeSet attrs) {super(context, attrs);this.context = context;init();}private void init() {if (timer == null) {timer = new Timer();}//实现ViewSwitcher.ViewFactory接口方法，创建出TextView并启动动画setFactory(this);setInAnimation(AnimationUtils.loadAnimation(context, R.anim.anim_notificationview_bottom_in));setOutAnimation(AnimationUtils.loadAnimation(context, R.anim.anim_notificationview_top_out));}public void setResources(String[] res) {resources = res;}  public void setTextColor(int color) {textColor = color;( (TextView) getCurrentView()).setTextColor(textColor);( (TextView) getNextView()).setTextColor(textColor);
//        ( (TextView) getChildAt(0)).setTextColor(textColor);
//        ( (TextView) getChildAt(1)).setTextColor(textColor);}public void setTextSize(int size) {textSize = size;((TextView) getCurrentView()).setTextSize(size);((TextView) getNextView()).setTextSize(size);}//这个是自定义View的启动点，从外面传进来的间隔时间，并以此来开启这个定时任务器public void setTextStillTime(long time) {if (timer == null) {timer = new Timer();} else {timer.scheduleAtFixedRate(new MyTask(), 1, time);}}//启动任务，每间隔time时间发送一个消息给handler更新文字private class MyTask extends TimerTask {@Overridepublic void run() {mHandler.sendEmptyMessage(1);}}private int next() {flag = index + 1;if (flag > resources.length - 1) {flag = flag - resources.length;}return flag;}private void updateText() {setText(resources[index]);((TextView) getCurrentView()).setTag(index);}@Overridepublic View makeView() {TextView tv = new TextView(context);tv.setTextColor(textColor);tv.setTextSize(textSize);tv.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {if (onItemClickListener != null) {onItemClickListener.onItemClick(getPosition());}}});return tv;}private int getPosition() {return (int) getCurrentView().getTag();}public void setOnItemClickListener(MyNotificationView.OnItemClickListener onItemClickListener) {this.onItemClickListener = onItemClickListener;}public interface OnItemClickListener {void onItemClick(int position);}}不知道为啥,大家都没提供动态修改颜色的方法,是因为太简单了?还是太复杂了?还是根本没人会有这样变态的需求啊.我想信随着浸入式的普及,越来越多人会有这个疑问的