今天我要设置ViewPager。setOnPageChangeListener,我发现它已弃用。
当前回答
以防有人需要kotlin中的解决方案:
viewPager.addOnPageChangeListener (object: ViewPager.OnPageChangeListener {
override fun onPageScrollStateChanged(state: Int) {
TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
}
override fun onPageScrolled(position: Int, positionOffset: Float, positionOffsetPixels: Int) {
TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
}
override fun onPageSelected(position: Int) {
TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
}
})
其他回答
这招对我很管用:
viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener(){
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
conterchange.setText(""+(1+position));
}
@Override
public void onPageSelected(int position) {
}
@Override
public void onPageScrollStateChanged(int state) {
}
});
: viewpage。setOnPageChangeListener现在已弃用。需要使用ViewPager。addOnPageChangeListener代替。
例如,
ViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
@Override
public void onPageSelected(int position) {
}
@Override
public void onPageScrollStateChanged(int state) {
}
});
你可以在这里找到这个。
以防有人需要kotlin中的解决方案:
viewPager.addOnPageChangeListener (object: ViewPager.OnPageChangeListener {
override fun onPageScrollStateChanged(state: Int) {
TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
}
override fun onPageScrolled(position: Int, positionOffset: Float, positionOffsetPixels: Int) {
TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
}
override fun onPageSelected(position: Int) {
TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
}
})
使用:viewpage。addOnPageChangeListener而不是viewpage . setonpagechangelistener。
你可以通过SimpleOnPageChangeListener来实现 守则如下:
private Fragment page = null;
/** Defining a listener for pageChange */
ViewPager.SimpleOnPageChangeListener pageChangeListener = new ViewPager.SimpleOnPageChangeListener(){
@Override
public void onPageSelected(int position) {
super.onPageSelected(position);
page = getSupportFragmentManager().findFragmentByTag("android:switcher:" + R.id.pager_selectPhotos + ":" + position);
System.out.println(page);
switch (position) {
case 0:
break;
case 1:
break;
default:
break;
}
}
};
/** Setting the pageChange listener to the viewPager */
_pager.setOnPageChangeListener(pageChangeListener);
推荐文章
- 警告:API ' variable . getjavacompile()'已过时,已被' variable . getjavacompileprovider()'取代
- 安装APK时出现错误
- 碎片中的onCreateOptionsMenu
- TextView粗体通过XML文件?
- 如何使线性布局的孩子之间的空间?
- DSL元素android.dataBinding。enabled'已过时,已被'android.buildFeatures.dataBinding'取代
- ConstraintLayout:以编程方式更改约束
- PANIC: AVD系统路径损坏。检查ANDROID_SDK_ROOT值
- 如何生成字符串类型的buildConfigField
- Recyclerview不调用onCreateViewHolder
- Android API 21工具栏填充
- Android L中不支持操作栏导航模式
- 如何在TextView中添加一个子弹符号?
- PreferenceManager getDefaultSharedPreferences在Android Q中已弃用
- 在Android Studio中创建aar文件