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我正在使用适配器文件中的处理程序使视图在3秒后不可见，但它不更新视图。我的问题在哪里，我该如何解决？如何在3秒后隐藏视图？
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
try {
Bundle bun = getIntent().getExtras();
if (!bun.isEmpty()) {
selecte_pos = bun.getInt("pos");
}
} catch (Exception e) {
}
Display display = getWindowManager().getDefaultDisplay();
width = display.getWidth();
height = display.getHeight();
System.out.println("full image activity");
ar = getIntent().getStringArrayListExtra("PhotoList");
System.out.println("full list size: " + ar.size());
imageLoader = new ImageLoader(this);
setContentView(R.layout.full_image_view_layout);
mPager = (ViewPager) findViewById(R.id.full_image_view_pager);
adapter = new MyPagerAdapter();
mPager.setAdapter(adapter);
mPager.setCurrentItem(selecte_pos);
}
class MyPagerAdapter extends PagerAdapter {
public int getCount() {
return ar.size();
}
Handler pagerHandler=new Handler(){
public void handleMessage(Message msg){
if(msg.what==1){
//if (istimer == true) {
System.out.println("page handler");
System.out.println("");
Toast.makeText(getApplicationContext(), "hi", 1).show();
shareLayout.setVisibility(View.INVISIBLE);
adapter.notifyDataSetChanged();
//}
}
}
};
@Override
public Object instantiateItem(ViewGroup container, final int position) {
System.out.println("view page clciking");
LayoutInflater layoutInflater = (LayoutInflater) container
.getContext().getSystemService(LAYOUT_INFLATER_SERVICE);
View v = layoutInflater.inflate(R.layout.imageview, null);
try {
final ImageView imageView = (ImageView) v
.findViewById(R.id.full_pager_adapter_iv);
shareLayout = (LinearLayout) v.findViewById(R.id.buttonslayout);
shareLayout.setVisibility(View.VISIBLE);
imageLoader.DisplayImage(ar.get(position), imageView);
if (first) {
System.out.println("fisr condition");
first = false;
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
pagerHandler.sendEmptyMessage(1);
//adapter.notifyDataSetChanged();
}
}, SPLASH_DISPLAY_LENGHT);
}
/**if(istimer1== true)
{
System.out.println("else part");
istimer1 = false;
shareLayout.setVisibility(View.VISIBLE);
adapter.notifyDataSetChanged();
}**/
imageView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
System.out.println("img clicking");
if (shareLayout.getVisibility() == View.INVISIBLE) {
System.out.println("invisible");
istimer = false;
istimer1 = true;
shareLayout.setVisibility(View.VISIBLE);
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
//istimer = true;
//istimer1 = false;
pagerHandler.sendEmptyMessage(1);
//adapter.notifyDataSetChanged();
}
}, SPLASH_DISPLAY_LENGHT);
adapter.notifyDataSetChanged();
}
if (shareLayout.getVisibility() == View.VISIBLE) {
System.out.println("visible");
istimer = true;
istimer1 = false;
shareLayout.setVisibility(View.INVISIBLE);
adapter.notifyDataSetChanged();
}
}
});
LinearLayout btnshare = (LinearLayout) v
.findViewById(R.id.btnshare);
btnshare.setTag(position);
btnshare.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
int pos = (Integer) v.getTag();
String s = ar.get(pos);
// String s = bean.getImagePath();
File file = new File(s);
Intent sendMailIntent = new Intent(Intent.ACTION_SEND);
sendMailIntent.setType("image/jpeg");
sendMailIntent.putExtra(
android.content.Intent.EXTRA_TEXT, "");
sendMailIntent.putExtra(Intent.EXTRA_STREAM,
Uri.fromFile(file));
/* sendMailIntent.setType("image/*"); */
startActivity(Intent.createChooser(sendMailIntent, ""));
}
});
} catch (Exception e) {
}
((ViewPager) container).addView(v, 0);
return v;
}
@Override
public void destroyItem(ViewGroup collection, int position, Object view) {
((ViewPager) collection).removeView((View) view);
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}
@Override
public int getItemPosition(Object object) {
// TODO Auto-generated method stub
return POSITION_NONE;
}
}
@Override
public void onBackPressed() {
// TODO Auto-generated method stub
super.onBackPressed();
finish();
}
private Handler mTimerHandler = new Handler();
private void stopTimer() {
if (mTimer1 != null) {
mTimer1.cancel();
mTimer1.purge();
}
}
private void startTimer() {
mTimer1 = new Timer();
mTt1 = new TimerTask() {
public void run() {
mTimerHandler.post(new Runnable() {
public void run() {
System.out.println("timesatrs");
// TODO
if (shareLayout.getVisibility() == View.VISIBLE) {
System.out.println("time completed");
shareLayout.setVisibility(View.INVISIBLE);
}
}
});
}
};
mTimer1.schedule(mTt1, 6000);
}
}
是的，我想更新shareLayout – user3114723
确保你正在更新正确的布局，也是从多个点更新，尝试从一次更新，然后继续你的逻辑。 – Yuvi