安卓开发小坑

1.BaseFragmentPagerAdapter.setCurrentItem 要在setAdapter之后调用，否则无效
2.控件从底部滑出滑入动画

public class AnimationUtil {

    private static final String TAG = AnimationUtil.class.getSimpleName();

    /**
     * 从控件所在位置移动到控件的底部
     *
     * @return
     */
    public static TranslateAnimation moveToViewBottom() {
        TranslateAnimation mHiddenAction = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0.0f,
                Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF,
                0.0f, Animation.RELATIVE_TO_SELF, 1.0f);
        mHiddenAction.setDuration(1000);
        return mHiddenAction;
    }

    /**
     * 从控件的底部移动到控件所在位置
     *
     * @return
     */
    public static TranslateAnimation moveToViewLocation() {
        TranslateAnimation mHiddenAction = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0.0f,
                Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF,
                1.0f, Animation.RELATIVE_TO_SELF, 0.0f);
        mHiddenAction.setDuration(1000);
        return mHiddenAction;
    }
}

3.消除textview文字和控件上下边距使用includeFontPadding=“false”属性
4.Databinding显示隐藏控件
android:visibility="@{0 == 0 ? View.GONE : View.VISIBLE}"前要在<data>
<import type="android.view.View"/>
</data>