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将 Jake Wharton 的TitlePagerIndicator更改 为在标签之间滑动时产生您在 Google Play 商店中看到的文本淡化效果所需的最少工作量是多少?我认为关键在于修改onDraw()但这需要我弄清楚他的代码和他的数学。如果有更简单的解决方案,我会更喜欢。

我也试过TitlePagerIndicator.setFadingEdgeLength(100),但这似乎没有任何作用。我知道你必须做TitlePagerIndicator.setHorizo​​ntalFadingEdgeEnabled(true)但仍然没有任何褪色效果。

以下是基于 Jake 示例之一的代码:

public class SampleTitlesStyledMethods extends BaseSampleActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.simple_titles);

        mAdapter = new TestTitleFragmentAdapter(getSupportFragmentManager());

        mPager = (ViewPager)findViewById(R.id.pager);
        mPager.setAdapter(mAdapter);

        TitlePageIndicator indicator = (TitlePageIndicator)findViewById(R.id.indicator);
        mIndicator = indicator;
        indicator.setViewPager(mPager);

        final float density = getResources().getDisplayMetrics().density;
        indicator.setBackgroundColor(0x18FF0000);
        indicator.setFooterColor(0xFFAA2222);
        indicator.setFooterLineHeight(1 * density); //1dp
        indicator.setFooterIndicatorHeight(3 * density); //3dp
        indicator.setFooterIndicatorStyle(IndicatorStyle.Underline);
        indicator.setTextColor(0xAA000000);
        indicator.setSelectedColor(0xFF000000);
        indicator.setSelectedBold(true);

        //my code, doesn't seem to do anything though...
        indicator.setHorizontalFadingEdgeEnabled(true);
        indicator.setFadingEdgeLength(1000);
    }
}
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1 回答 1

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我知道这很旧,但您应该在这里查看答案,它对我很有用

于 2013-04-15T14:13:17.213 回答