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我用頁面指示器刷卡ViewPager，但是當我運行我的應用程序時，我看到playbutton.xml和滑動視圖不起作用。
這裏是我的Java Activity（play_button.java）：用指示器滑動查看尋呼機
public class play_button extends Activity implements
ViewPager.OnPageChangeListener, View.OnClickListener{
protected View view;
private ImageButton btnNext, btnFinish;
private ViewPager intro_images;
private LinearLayout pager_indicator;
private int dotsCount;
private ImageView[] dots;
private ViewPagerAdapter mAdapter;
private int[] mImageResources = {
R.mipmap.abc1,
R.mipmap.abc2,
R.mipmap.abc3,
R.mipmap.abc4,
R.mipmap.abc5
};
@Override
protected void onCreate(Bundle savedInstanceState)
{
// To make activity full screen.
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
super.onCreate(savedInstanceState);
setReference();
setContentView(R.layout.playbutton);
/* toolbar.setVisibility(View.GONE);*/
}
public void setReference() {
view = LayoutInflater.from(this).inflate(R.layout.playbutton,null);
intro_images = (ViewPager) view.findViewById(R.id.pager_introduction);
btnNext = (ImageButton) view.findViewById(R.id.btn_next);
btnFinish = (ImageButton) view.findViewById(R.id.btn_finish);
pager_indicator = (LinearLayout) view.findViewById(R.id.viewPagerCountDots);
btnNext.setOnClickListener(this);
btnFinish.setOnClickListener(this);
mAdapter = new ViewPagerAdapter(play_button.this, mImageResources);
intro_images.setAdapter(mAdapter);
intro_images.setCurrentItem(0);
intro_images.addOnPageChangeListener(this);
setUiPageViewController();
}
private void setUiPageViewController() {
dotsCount = mAdapter.getCount();
dots = new ImageView[dotsCount];
for (int i = 0; i < dotsCount; i++) {
dots[i] = new ImageView(this);
dots[i].setImageDrawable(ResourcesCompat.getDrawable(getResources(), R.drawable.nonselecteditem_dot, null));
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT
);
params.setMargins(4, 0, 4, 0);
pager_indicator.addView(dots[i], params);
}
dots[0].setImageDrawable(ResourcesCompat.getDrawable(getResources(), R.drawable.selecteditem_dot, null));
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_next:
intro_images.setCurrentItem((intro_images.getCurrentItem() < dotsCount)
? intro_images.getCurrentItem() + 1 : 0);
break;
case R.id.btn_finish:
finish();
break;
}
}
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
@Override
public void onPageSelected(int position) {
for (int i = 0; i < dotsCount; i++) {
dots[i].setImageDrawable(ResourcesCompat.getDrawable(getResources(), R.drawable.nonselecteditem_dot, null));
}
dots[position].setImageDrawable(ResourcesCompat.getDrawable(getResources(), R.drawable.selecteditem_dot, null));
if (position + 1 == dotsCount) {
btnNext.setVisibility(View.GONE);
btnFinish.setVisibility(View.VISIBLE);
} else {
btnNext.setVisibility(View.VISIBLE);
btnFinish.setVisibility(View.GONE);
}
}
@Override
public void onPageScrollStateChanged(int state) {
}
}
這裏是我的XML（playbutton.xml）：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/container"
android:fitsSystemWindows="true"
tools:context="com.androprogrammer.tutorials.samples.ViewPagerDemo">
<android.support.v4.view.ViewPager
android:id="@+id/pager_introduction"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:listitem="@layout/pager_item" />
<RelativeLayout
android:id="@+id/viewPagerIndicator"
android:layout_width="match_parent"
android:layout_height="55dp"
android:layout_alignParentBottom="true"
android:layout_marginTop="5dp"
android:gravity="center">
<LinearLayout
android:id="@+id/viewPagerCountDots"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerHorizontal="true"
android:gravity="center"
android:orientation="horizontal" />
<ImageButton
android:id="@+id/btn_next"
android:layout_width="42dip"
android:layout_height="42dip"
android:layout_alignParentRight="true"
android:layout_marginRight="15dip"
android:background="@drawable/btn_round_semitransperant"
android:src="@mipmap/ic_navigation_arrow_forward" />
<ImageButton
android:id="@+id/btn_finish"
android:layout_width="42dip"
android:layout_height="42dip"
android:layout_alignParentRight="true"
android:layout_marginRight="15dip"
android:background="@drawable/btn_round_semitransperant"
android:contentDescription="Let's start"
android:src="@mipmap/ic_navigation_check"
android:visibility="gone" />
</RelativeLayout>
這裏是我的ViewPagerAdabter（ViewPagerAdapter.java） ：
import android.content.Context;
import android.support.v4.view.PagerAdapter;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;
public class ViewPagerAdapter extends PagerAdapter {
private Context mContext;
private int[] mResources;
public ViewPagerAdapter(Context mContext, int[] mResources) {
this.mContext = mContext;
this.mResources = mResources;
}
@Override
public int getCount() {
return mResources.length;
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view == ((LinearLayout) object);
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
View itemView = LayoutInflater.from(mContext).inflate(R.layout.pager_item, container, false);
ImageView imageView = (ImageView) itemView.findViewById(R.id.img_pager_item);
imageView.setImageResource(mResources[position]);
container.addView(itemView);
return itemView;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((LinearLayout) object);
}
}
而這裏的pager_item.x毫升：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:fitsSystemWindows="true"
android:layout_height="match_parent">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:src="@mipmap/abc1"
android:id="@+id/img_pager_item"
android:scaleType="fitXY"
android:adjustViewBounds="true"
android:clickable="false"/>
</LinearLayout>
當我運行我的應用程序，然後單擊我的播放按鈕，而不是OD要去刷卡視圖頁面我看到playbutton.xml。
有誰知道問題在哪裏？
這可能會幫助一些http://www.gadgetsaint.com/android/create-viewpager-tabs-android/#.WPuppVN97BI – ASP