调整搜索记录提示

res/layout/search_normal.xml

@@ -19,7 +19,8 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:layout_gravity="center"
-    android:orientation="vertical" >
+    android:orientation="vertical"
+    android:focusableInTouchMode="true" >
 
     <com.hippo.ehviewer.widget.CategoryTable
         android:id="@+id/category_table"
@@ -43,7 +44,6 @@
         android:ems="10"
         android:hint="@string/hint_no_keyword"
         android:singleLine="true"
-        android:dropDownVerticalOffset="38dp"
         android:textSize="@dimen/text_little_small" />
 
     <CheckBox

src/com/hippo/ehviewer/widget/SuggestionHelper.java

@@ -67,7 +67,8 @@ public class SuggestionHelper extends SearchRecentSuggestions {
     @Override
     public void saveRecentQuery(final String queryString, final String line2) {
         super.saveRecentQuery(queryString, line2);
-        mQueryList.add(0, queryString);
+        if (!mQueryList.contains(queryString))
+            mQueryList.add(0, queryString);
         truncateHistory(MAX_HISTORY_COUNT);
     }
 

src/com/hippo/ehviewer/widget/SuggestionTextView.java

@@ -21,9 +21,13 @@ import java.util.List;
 import android.content.Context;
 import android.util.AttributeSet;
 import android.view.KeyEvent;
+import android.view.MotionEvent;
+import android.view.inputmethod.InputMethodManager;
 import android.widget.ArrayAdapter;
 import android.widget.AutoCompleteTextView;
 
+import com.hippo.ehviewer.util.ViewUtils;
+
 public class SuggestionTextView extends PrefixEditText {
 
     private static final String TAG = SuggestionTextView.class.getSimpleName();
@@ -31,6 +35,8 @@ public class SuggestionTextView extends PrefixEditText {
     private List<String> mAllSuggestions;
     private ArrayAdapter<String> mAdapte;
 
+    private boolean mKeyboardIsShowing = true;
+
     public SuggestionTextView(Context context) {
         super(context);
     }
@@ -43,14 +49,6 @@ public class SuggestionTextView extends PrefixEditText {
         super(context, attrs, defStyle);
     }
 
-    /**
-     * We override this method to avoid replacing the query box text when a
-     * suggestion is clicked.
-     */
-    @Override
-    protected void replaceText(CharSequence text) {
-    }
-
     /**
      * We override this method to avoid an extra onItemClick being called on
      * the drop-down's OnItemClickListener by
@@ -70,11 +68,52 @@ public class SuggestionTextView extends PrefixEditText {
         return true;
     }
 
+    @Override
+    public boolean onTouchEvent(MotionEvent event) {
+        if (!isPopupShowing())
+            showDropDown();
+
+        return super.onTouchEvent(event);
+    }
+
+    @Override
+    public boolean onKeyPreIme(int keyCode, KeyEvent event) {
+        if (keyCode == KeyEvent.KEYCODE_BACK) {
+            // special case for the back key, we do not even try to send it
+            // to the drop down list but instead, consume it immediately
+            if (event.getAction() == KeyEvent.ACTION_DOWN && event.getRepeatCount() == 0) {
+                KeyEvent.DispatcherState state = getKeyDispatcherState();
+                if (state != null) {
+                    state.startTracking(event, this);
+                }
+                return true;
+            } else if (event.getAction() == KeyEvent.ACTION_UP) {
+                KeyEvent.DispatcherState state = getKeyDispatcherState();
+                if (state != null) {
+                    state.handleUpEvent(event);
+                }
+                if (event.isTracking() && !event.isCanceled()) {
+                    InputMethodManager imm = (InputMethodManager)
+                            getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
+                    if (imm != null && mKeyboardIsShowing) {
+                        imm.hideSoftInputFromWindow(getWindowToken(), 0);
+                        mKeyboardIsShowing = false;
+                    } else {
+                        clearFocus();
+                        mKeyboardIsShowing = true;
+                    }
+                    return true;
+                }
+            }
+        }
+        return super.onKeyPreIme(keyCode, event);
+    }
+
     public void setSuggestionHelper(SuggestionHelper helper) {
         if (helper != null) {
             mAllSuggestions = helper.getQueries();
-            mAdapte = new ArrayAdapter<String>(getContext(),
-                    android.R.layout.simple_list_item_1, mAllSuggestions);
+            mAdapte = new ArrayAdapter<String>(ViewUtils.sContextThemeWrapper,
+                    android.R.layout.simple_dropdown_item_1line, mAllSuggestions);
             setAdapter(mAdapte);
         } else {
             mAllSuggestions = null;