Android 将OnClick设置为ViewPager不起作用
我在实现对ViewPager的单击时遇到一些问题 我希望这样,当我点击我的一张图片被ViewPager显示时,它会显示一条toast消息,告诉我这是可行的 到目前为止,在执行此操作时单击其中一个项目时没有发生任何情况 任何帮助都将不胜感激 ViewPager XML:Android 将OnClick设置为ViewPager不起作用,android,android-viewpager,Android,Android Viewpager,我在实现对ViewPager的单击时遇到一些问题 我希望这样,当我点击我的一张图片被ViewPager显示时,它会显示一条toast消息,告诉我这是可行的 到目前为止,在执行此操作时单击其中一个项目时没有发生任何情况 任何帮助都将不胜感激 ViewPager XML: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/a
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"
android:id="@+id/rellayout"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<android.support.v4.view.ViewPager
android:id="@+id/pager"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
</android.support.v4.view.ViewPager>
<com.google.ads.AdView
android:id="@+id/ad"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
ads:adSize="BANNER"
ads:adUnitId="AdIdHere"
ads:loadAdOnCreate="true" >
</com.google.ads.AdView>
</RelativeLayout>
片段详细信息XML:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<ProgressBar
style="?android:attr/progressBarStyleLarge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center" />
<com.question.ui.RecyclingImageView
android:id="@+id/imageView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:contentDescription="@string/imageview_description" />
</FrameLayout>
您需要在ImageDetailFragment中的视图上设置单击事件
private Context context;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final View v = inflater.inflate(R.layout.image_detail_fragment,
container, false);
context = v.getContext();
v.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
Toast.makeText(context, "Cilcked..",Toast.LENGTH_SHORT).show();
}
});
mImageView = (ImageView) v.findViewById(R.id.imageView);
return v;
}
你必须设置onClick on fragment而不是view pager。@Indiandroid我以前从未这样做过,你能详细说明一下吗?在ImageDetailFragment中,你必须设置onClick on fragment view…这样每当你点击view pager时,它就会捕捉到孩子的点击事件,并显示你的Toast.:)@Indiandroid我已经添加了我的ImageDetailFragment,你能给我看一下吗?我已经把你给我的密码输入我的密码并更新了我的答案。当我单击“静止”时,土司不会显示。@杰克,你在哪里单击?你能显示图像\u细节\u片段布局吗?当我单击每个图像时,土司仍然不会显示任何内容?这很奇怪,一切都有道理。您可以在我更改代码的地方看到我的答案。@Jack remove view pager onClick事件。什么意思,我看不到view pager onClick?
public class Batmanark extends FragmentActivity implements OnClickListener {
private static final String IMAGE_CACHE_DIR = "images";
public static final String EXTRA_IMAGE = "extra_image";
private ImagePagerAdapter mAdapter;
private ImageFetcher mImageFetcher;
private ViewPager mPager;
@TargetApi(11)
@Override
public void onCreate(Bundle savedInstanceState) {
if (BuildConfig.DEBUG) {
Utils.enableStrictMode();
}
super.onCreate(savedInstanceState);
setContentView(R.layout.image_detail_pager);
AdView ad = (AdView) findViewById(R.id.ad);
ad.loadAd(new AdRequest());
final DisplayMetrics displayMetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
final int height = displayMetrics.heightPixels;
final int width = displayMetrics.widthPixels;
final int longest = (height > width ? height : width) / 2;
ImageCache.ImageCacheParams cacheParams = new ImageCache.ImageCacheParams(
this, IMAGE_CACHE_DIR);
cacheParams.setMemCacheSizePercent(0.25f);
mImageFetcher = new ImageFetcher(this, longest);
mImageFetcher.addImageCache(getSupportFragmentManager(), cacheParams);
mImageFetcher.setImageFadeIn(false);
mAdapter = new ImagePagerAdapter(getSupportFragmentManager(),
Images.imageUrlsBatmanark.length);
mPager = (ViewPager) findViewById(R.id.pager);
mPager.setAdapter(mAdapter);
mPager.setPageMargin((int) getResources().getDimension(
R.dimen.image_detail_pager_margin));
mPager.setOffscreenPageLimit(2);
getWindow().addFlags(LayoutParams.FLAG_FULLSCREEN);
if (Utils.hasHoneycomb()) {
final ActionBar actionBar = getActionBar();
actionBar.setDisplayShowTitleEnabled(false);
actionBar.setDisplayHomeAsUpEnabled(true);
mPager.setOnSystemUiVisibilityChangeListener(new View.OnSystemUiVisibilityChangeListener() {
@Override
public void onSystemUiVisibilityChange(int vis) {
if ((vis & View.SYSTEM_UI_FLAG_LOW_PROFILE) != 0) {
actionBar.hide();
} else {
actionBar.show();
}
}
});
mPager.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE);
actionBar.hide();
}
final int extraCurrentItem = getIntent().getIntExtra(EXTRA_IMAGE, -1);
if (extraCurrentItem != -1) {
mPager.setCurrentItem(extraCurrentItem);
}
}
@Override
public void onResume() {
super.onResume();
mImageFetcher.setExitTasksEarly(false);
}
@Override
protected void onPause() {
super.onPause();
mImageFetcher.setExitTasksEarly(true);
mImageFetcher.flushCache();
}
@Override
protected void onDestroy() {
super.onDestroy();
mImageFetcher.closeCache();
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
NavUtils.navigateUpFromSameTask(this);
return true;
case R.id.clear_cache:
mImageFetcher.clearCache();
Toast.makeText(this, R.string.clear_cache_complete_toast,
Toast.LENGTH_SHORT).show();
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main_menu, menu);
return true;
}
public ImageFetcher getImageFetcher() {
return mImageFetcher;
}
private class ImagePagerAdapter extends FragmentStatePagerAdapter {
private final int mSize;
public ImagePagerAdapter(FragmentManager fm, int size) {
super(fm);
mSize = size;
}
@Override
public int getCount() {
return mSize;
}
@Override
public Fragment getItem(int position) {
return ImageDetailFragment
.newInstance(Images.imageUrlsBatmanark[position]);
}
}
@TargetApi(11)
@Override
public void onClick(View v) {
final int vis = mPager.getSystemUiVisibility();
if ((vis & View.SYSTEM_UI_FLAG_LOW_PROFILE) != 0) {
mPager.setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);
} else {
mPager.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE);
}
}
}
private Context context;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final View v = inflater.inflate(R.layout.image_detail_fragment,
container, false);
context = v.getContext();
v.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
Toast.makeText(context, "Cilcked..",Toast.LENGTH_SHORT).show();
}
});
mImageView = (ImageView) v.findViewById(R.id.imageView);
return v;
}