Android TextSwitcher通知公告自動上下滾動且帶點選事件

TextSwitcher可實現仿京東通告效果

核心程式碼

private TextSwitcher textSwitcher_tag;
private TextSwitcher textSwitcher_title;
String[] tags = new String[]{"最新", "最火爆", "HOT", "new"};
String[] titles = new String[]{"瑞士維氏軍刀 新品滿200-50", "家居裝潢煥新季，講199減100！", "帶上相機去春遊，尼康低至477", "價格驚呆！電信千兆光纖上市"};
private int curStr=0;
public static final int NEWS_MESSAGE_TEXTVIEW=100;

private Handler handler=new Handler(){
    @Override
    public void handleMessage(Message msg) {
        super.handleMessage(msg);
        switch (msg.what){
            case NEWS_MESSAGE_TEXTVIEW:
                curStr++;
                if (curStr == tags.length) {
                    curStr = 0;
                }
                textSwitcher_tag.setText(tags[curStr]);
                textSwitcher_title.setText(titles[curStr]);
                break;
            default:
                break;
        }
    }
};

textSwitcher_tag= (TextSwitcher) findViewById(R.id.textSwitcher_tag);
textSwitcher_title= (TextSwitcher) findViewById(R.id.textSwitcher_title);

textSwitcher_title.setFactory(new ViewSwitcher.ViewFactory() {
    @Override
    public View makeView() {
        final TextView tv = new TextView(MainActivity.this);
        tv.setTextColor(Color.BLACK);
        FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(
                ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
        params.gravity = Gravity.CENTER_VERTICAL;
        tv.setLayoutParams(params);
        return tv;
    }
});

textSwitcher_tag.setFactory(new ViewSwitcher.ViewFactory() {
    @Override
    public View makeView() {
        final TextView tv = new TextView(MainActivity.this);
        tv.setTextColor(Color.RED);
        FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(
                ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
        params.gravity = Gravity.CENTER_VERTICAL;
        tv.setLayoutParams(params);
        return tv;
    }
});

textSwitcher_tag.setText(tags[0]);
textSwitcher_title.setText(titles[0]);

new Thread(){
    @Override
    public void run() {
        if(tags.length==titles.length){
            while (curStr<tags.length){
                synchronized (this) {
                    SystemClock.sleep(4000);//每隔4秒滾動一次
                    handler.sendEmptyMessage(NEWS_MESSAGE_TEXTVIEW);
                }
            }
        }
    }
}.start();

textSwitcher_title.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        switch (curStr%titles.length){
            case 0:
                Toast.makeText(MainActivity.this,titles[0],Toast.LENGTH_SHORT).show();
                break;
            case 1:
                Toast.makeText(MainActivity.this,titles[1],Toast.LENGTH_SHORT).show();
                break;
            case 2:
                Toast.makeText(MainActivity.this,titles[2],Toast.LENGTH_SHORT).show();
                break;
            case 3:
                Toast.makeText(MainActivity.this,titles[3],Toast.LENGTH_SHORT).show();
                break;
            default:
                break;
        }
    }
});