在我的应用程序中，有一个带有textview和image的listview，我可以通过在xml中添加一个edittext来搜索元素，但我想在操作栏中搜索栏..我该怎么做？请帮忙.. Image:
// My activity java code
productName = new String[] { "Baby Item", "Harbal Item", "Medicine Item", "Electronics Item", "Product item 1",
"Product item 2", "Product item 3", "Product item 4", "Product item 5", "Product item 6"};
productDescesc = new String[] { "Baby Item description", "Harbal Item description",
"Medicine Item description", "Electronics Item description", "Product item description",
"Product item description", "Product item description", "Product item description", "Product item description","Product item description" };
productIcon = new int[] { R.drawable.baby_item, R.drawable.harbal_item,
R.drawable.medicine_item, R.drawable.electronics_item,
R.drawable.demo_product_item, R.drawable.demo_product_item, R.drawable.demo_product_item,
R.drawable.demo_product_item, R.drawable.demo_product_item, R.drawable.demo_product_item };
// Locate the ListView in listview_main.xml
list = (ListView) findViewById(R.id.list);
for (int i = 0; i < productName.length; i++)
{
SearchProduct searchProduct = new SearchProduct(productIcon[i], productName[i], productDescesc[i]);
// Binds all strings into an array
arraylist.add(searchProduct);
}
// Pass results to ListViewAdapter Class
adapter = new ListViewAdapter(this, arraylist);
// Binds the Adapter to the ListView
list.setAdapter(adapter);
// Locate the EditText in listview_main.xml
editsearch = (EditText) findViewById(R.id.search);
// Capture Text in EditText
editsearch.addTextChangedListener(new TextWatcher() {
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
String text = editsearch.getText().toString().toLowerCase(Locale.getDefault());
adapter.filter(text);
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1,
int arg2, int arg3) {
// TODO Auto-generated method stub
}
@Override
public void onTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
});
//Onclick
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View v, final int position, long id) {
// Toast.makeText(Search.this,"List Item Clicked:" + position, Toast.LENGTH_SHORT)
// .show();
Intent intent=new Intent(Search.this,ProductActivity.class);
startActivity(intent);
}
});
//我的自定义适配器代码
public class ListViewAdapter extends BaseAdapter {
// Declare Variables
Context mContext;
LayoutInflater inflater;
private List<SearchProduct> productList = null;
private ArrayList<SearchProduct> arraylist;
SearchProduct searchProduct;
private ListViewAdapter filter;
public ListViewAdapter(Context context,
List<SearchProduct> worldpopulationlist) {
mContext = context;
this.productList = worldpopulationlist;
inflater = LayoutInflater.from(mContext);
this.arraylist = new ArrayList<SearchProduct>();
this.arraylist.addAll(worldpopulationlist);
}
public class ViewHolder {
ImageView icon;
TextView name;
TextView desc;
}
@Override
public int getCount() {
return productList.size();
}
@Override
public SearchProduct getItem(int position) {
return productList.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
public View getView(final int position, View view, ViewGroup parent) {
final ViewHolder holder;
if (view == null) {
holder = new ViewHolder();
view = inflater.inflate(R.layout.search_list_item, null);
// Locate the TextViews in listview_item.xml
holder.icon = (ImageView) view.findViewById(R.id.imgProduct);
holder.name = (TextView) view.findViewById(R.id.tvProductName);
holder.desc = (TextView) view.findViewById(R.id.tvDesc);
// Locate the ImageView in listview_item.xml
view.setTag(holder);
} else {
holder = (ViewHolder) view.getTag();
}
// Set the results into TextViews
holder.name.setText(productList.get(position).getName());
holder.desc.setText(productList.get(position).getDesc());
// Set the results into ImageView
holder.icon.setImageResource(productList.get(position)
.getIcon());
return view;
}
// Filter Class
public void filter(String charText) {
charText = charText.toLowerCase(Locale.getDefault());
productList.clear();
if (charText.length() == 0) {
productList.addAll(arraylist);
} else {
for (SearchProduct searchProduct : arraylist) {
if (searchProduct.getName().toLowerCase(Locale.getDefault())
.contains(charText)) {
productList.add(searchProduct);
}
}
}
notifyDataSetChanged();
}
}
答案 0 :(得分：0)
您不应在xml中添加EditText来执行此操作。 您想要做的是自定义工具栏。 此链接可能有所帮助：http://www.101apps.co.za/index.php/articles/using-toolbars-in-your-apps.html
因此，您的MainActivity扩展了您的CustomToolBarActivity，您现有的工作将处于片段中。
答案 1 :(得分：0)
<强> activity_main.xml中：
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar_search"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/blue">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:orientation="horizontal">
<EditText
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/search_toolbar_id"
android:hint="search_here"/>
</LinearLayout>
</android.support.v7.widget.Toolbar>
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="@+id/frame_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="?attr/actionBarSize" />
</android.support.design.widget.CoordinatorLayout>
<强> MainActivity.java：
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mContext = AppDelegate.getContext();
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar_browse_and_search);
setSupportActionBar(toolbar);
EditText searchText = (EditText) findViewById(R.id.search_toolbar_id);
// Put in another button(search icon) to do whatever you want with an OnClickListener
// Put your existing work in a fragment and replace the frame layout with your fragment
Fragment yourExistingWorkInThisFragment = new Fragment();
getSupportFragmentManager().beginTransaction()
.replace(R.id.frame_layout, yourExistingWorkInThisFragment)
.commit();
答案 2 :(得分：0)