我有一個listview來填充數據與CustomAdapter,如下面的代碼所示。Android:View在Listview/Adapter中不再顯示?
1.)listview行是可點擊的和onItemClick我顯示了兩個按鈕重拍/審查。
2.)當我點擊其他行時,應該隱藏上一行可見的按鈕。
3)當我滾動列表中的所有按鈕都看不見再次,這是不應該的。
我已經達到了第一點。 1這個代碼,但我怎麼能達到2,3。我如何修改適配器的getView()
方法或onItemClick()
以便事情正常工作。
//與適配器初始化列表視圖
AttempListView.setAdapter(new AttemptedExcerciseAdapter(mAttempRecord,AttemptedExercise.this));
//一個不同的適配器類來代替值
公共類AttemptedExcerciseAdapter延伸BaseAdapter {
HashMap<Integer, AttemptedRecord> mHashMap;
Context mContext;
LinearLayout mLLButton;
public AttemptedExcerciseAdapter() {
// TODO Auto-generated constructor stub
}
public AttemptedExcerciseAdapter(HashMap<Integer, AttemptedRecord> mAttempRecord,Context mContext) {
this.mHashMap = mAttempRecord;
this.mContext=mContext;
}
@Override
public int getCount() {
return mHashMap.size();
}
@Override
public Object getItem(int arg0) {
return null;
}
@Override
public long getItemId(int arg0) {
return 0;
}
@Override
public View getView(final int position, View convertView, ViewGroup arg2) {
if (convertView == null) {
@SuppressWarnings("static-access")
LayoutInflater layoutInflater = (LayoutInflater) mContext.getSystemService(AttemptedExercise.LAYOUT_INFLATER_SERVICE);
convertView = layoutInflater.inflate(R.layout.exerciselistlayout, null);
}
TextView attempChapter_name = (TextView) convertView.findViewById(R.id.TVchapterexercisechapterName);
TextView attemptQues = (TextView) convertView.findViewById(R.id.tvexercisesuccessrate);
TextView attemptSR = (TextView) convertView.findViewById(R.id.tvexerciseperquestiontime);
Button ReviewButton = (Button) convertView.findViewById(R.id.ReviewButton);
Button RetakeButton = (Button) convertView.findViewById(R.id.RetakeButton);
LinearLayout mLLtext = (LinearLayout) convertView.findViewById(R.id.LLText);
mLLButton = (LinearLayout) convertView.findViewById(R.id.LLButton);
mLLButton.setVisibility(View.INVISIBLE);
mLLtext.setVisibility(View.VISIBLE);
System.out.println("data value is..."+position+mHashMap.get(position + 1).getChapter_name());
attempChapter_name.setText(mHashMap.get(position+1).getChapter_name());
attemptQues.setText(" " + mHashMap.get(position+1).getTimePerQues() + " sec/ques");
attemptSR.setText(" " + mHashMap.get(position+1).getSuccess_rate() + " %");
return convertView;
}
}
//項目點擊李的偵聽器stview
公共類ExcerciseItemClickListener實現OnItemClickListener {
ArrayList<Integer> rowNo=new ArrayList<Integer>();
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
System.out.println("click working..."+arg2);
arg1.findViewById(R.id.LLButton).setVisibility(View.INVISIBLE);
rowNo.clear();
rowNo.add(arg2);
if(rowNo.size()==1)
{
AttemptedRecord mRecordExcerciseItem = mAttempRecord.get(arg2 + 1);
final int chapter_id = mRecordExcerciseItem.getChapter_id();
final int test_id = mRecordExcerciseItem.getTest_id();
final int subject_id = mRecordExcerciseItem.getSubject_id();
System.out.println("attempted list size is..."+mAttempRecord.size());
arg1.findViewById(R.id.LLText).setVisibility(View.INVISIBLE);
arg1.findViewById(R.id.LLTake).setVisibility(View.INVISIBLE);
arg1.findViewById(R.id.LLButton).setVisibility(View.VISIBLE);
Button review=(Button) arg1.findViewById(R.id.ReviewButton);
Button retake=(Button) arg1.findViewById(R.id.RetakeButton);
review.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
DBHelper mDbHelper = new DBHelper(AttemptedExercise.this);
mDbHelper.createOrOpenDatabase("Dashboard");
Cursor chpater_exercise_Cursor = mDbHelper.rawQuery("select current_test_id from practice_test_summary where test_id="+test_id+" order by test_datetime desc limit 1");
chpater_exercise_Cursor.moveToFirst();
Long current_test_id =chpater_exercise_Cursor.getLong(0);
chpater_exercise_Cursor.close();
System.out.println("value of current test id is...."+current_test_id);
Intent reviewIntent = new Intent(AttemptedExercise.this, PracticeReview.class);
reviewIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_NO_HISTORY);
if (current_test_id > 0) {
reviewIntent.putExtra("current_test_id", current_test_id);
startActivity(reviewIntent);
}
}
});
retake.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
System.out.println("test id value when test starts is... "+test_id);
Toast.makeText(AttemptedExercise.this, "chapter_id" + chapter_id + " course_id" + " test_id" + test_id + " subject_id" + subject_id, Toast.LENGTH_LONG).show();
StartTest(4, subject_id, chapter_id, test_id);
}
});
}
}
}
MAN你真是太棒了....這工作..對我... upvote和接受。 – Prateek