Just began to learn the Android, do a first APP, the normal operation, then hard moved from elsewhere a round figure, listview list page collapses

 import Java IO. The File; 
import java.util.ArrayList; 
Import the Java. Util. HashMap; 
import java.util.List; 
Import the Java. Util. The Map; 
Import the Java. Util. The Timer; 
Import the Java. Util. TimerTask; 

The import android. App. The Activity; 
The import android. App. AlertDialog; 
Import android. Content. DialogInterface. 
The import android. Content. Intent; 
The import android. Database. Cursor; 
The import android. Database. Sqlite. SQLiteDatabase; 
The import android. Graphics. Bitmap; 
The import android. Graphics. BitmapFactory; 
The import android. OS. Bundle; 
The import android. OS. Handler; 
The import android. Support. The v4. View. ViewPager; 
The import android. View. KeyEvent; 
The import android. View. The view; 
The import android. View. The view. An OnClickListener; 
Window; import android. The view. 
The import android. Widget. Adapter; 
The import android. Widget. AdapterView; 
The import android. Widget. The Button; 
The import android. Widget. ImageView; 
The import android. Widget. ListView. 
The import android. Widget. SimpleAdapter; 
The import android. Widget. TextView; 
The import android. Widget. AdapterView. OnItemClickListener; 

Public class LookActivity extends the Activity {
Private Button myHomeBtn myselfBtn; 
Private ListView result; 
Private TextView userName, mood; 
Private String userId, name, headName; 
Private ImageView head; 
MyDatabaseHelper mydbHelper; 
Private ViewPager mMyViewPaper; 
Private List Images; 
Private List Dots; 
Private int currentItem; 
Private MyAdapter adapter. 
//the currently displayed image position 
Private int localPosition=0; 
//picture id 
Private int [] imageIds=
New int [] {R.d rawable dot_0, R.d. Rawable dot_1, R.d. Rawable dot_2, R.d. Rawable dot_3, R.d rawable. Dot_4}; 
The title of the//picture 
Private TimerTask mTimerTask; 
//create a timer 
Private final Timer Timer=new Timer (); 
Private ImageView mImageView; 

Protected void onCreate (Bundle savedInstanceState) {
Enclosing requestWindowFeature (Window. FEATURE_NO_TITLE); 
super.onCreate(savedInstanceState); 
CloseActivityClass. ActivityList. Add (this); 
The setContentView (R.l ayout. Activity_look); 

MyHomeBtn=(Button) the findViewById (R.i d.h. omeBtn); 
MyselfBtn=(Button) the findViewById (R.i d.m yselfBtn); 
Result=(ListView) the findViewById (R.i d.r esult); 

//pass information 
Intent Intent=getIntent (); 
UserId=intent. GetStringExtra (" userId "); 

MyHomeBtn. SetOnClickListener (new an OnClickListener () {
Public void onClick (View v) {
Intent Intent=new Intent (LookActivity. This, 
HomeActivity. Class); 
Intent. AddFlags (intent. FLAG_ACTIVITY_REORDER_TO_FRONT); 
Intent. PutExtra (" userId ", userId); 
Intent. PutExtra (" sign ", "0"); 
Intent. PutExtra (" isBackLook ", "yes"); 
StartActivity (intent); 
System. The exit (0); 
} 
}); 

MyselfBtn. SetOnClickListener (new an OnClickListener () {
Public void onClick (View v) {
Intent Intent=new Intent (LookActivity. This, 
MyselfActivity. Class); 
Intent. AddFlags (intent. FLAG_ACTIVITY_REORDER_TO_FRONT); 
Intent. PutExtra (" userId ", userId); 
Intent. PutExtra (" sign ", "0"); 
Intent. PutExtra (" isBackLook ", "yes"); 
StartActivity (intent); 
System. The exit (0); 
} 
}); 
MMyViewPaper=(ViewPager) the findViewById (R.i d.v p); 

//image 
Images=new ArrayList<> (a); 
For (int I=0; I & lt; ImageIds. Length; I++) {
MImageView=new ImageView (this); 
MImageView. SetBackgroundResource (imageIds [I]); 
Images. The add (mImageView); 
} 

Dots=new ArrayList<> (a); 
Dots. The add (the findViewById (R.i d.d ot_0)); 
Dots. The add (the findViewById (R.i d.d ot_1)); 
Dots. The add (the findViewById (R.i d.d ot_2)); 
Dots. The add (the findViewById (R.i d.d ot_3)); 
Dots. The add (the findViewById (R.i d.d ot_4)); 

Adapter=new MyAdapter (LookActivity. This, images); 
MMyViewPaper. SetAdapter (adapter); 
MMyViewPaper. SetOnPageChangeListener (new ViewPager. OnPageChangeListener () {

@ Override 
Public void onPageSelected (int position) {
Position the position of=% images. The size (); 
Dots. Get (position). SetBackgroundResource (R.d rawable. Dot_0); 
Dots. Get (localPosition). SetBackgroundResource (R.d rawable. Dot_1); 

LocalPosition=position; 
CurrentItem=position; 
} 
/* * 
* page sliding callback 
*/
@ Override 
Public void onPageScrolled (int arg0, float arg1, int arg2) {

} 
/* * 
* when the ViewPager state changes, the callback 
*/
@ Override 
Public void onPageScrollStateChanged (int state) {
} 
}); 

MydbHelper=new MyDatabaseHelper (LookActivity. This "topic. Db", null, 
1);//create the database auxiliary class 
SQLiteDatabase db=mydbHelper. GetReadableDatabase ();//get the SQLite database 

//configuration adapter shows the topic list 
SimpleAdapter adapter=new ImageSimpleAdapter (this, getData (db), 
R.l ayout listview_look, new String [] {" date ", "body", 
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