问题描述
我使用列表视图,因为长,但此时我面临一个奇怪的问题。这是我想提出setonitemclick听者就可以了,但它不工作我也搞不清楚这哪里是问题。我还有一个XML为列表视图,显示DATAS。
XML:
< ListView的机器人:ID =@ + ID / LV
机器人:dividerHeight =5DP
机器人:choiceMode =singleChoice
机器人:可点击=真
机器人:layout_width =match_parent
机器人:layout_height =WRAP_CONTENT
机器人:layout_alignParentTop =真
机器人:layout_alignParentLeft =真
机器人:layout_alignParentStart =真正的>
code:
包algonation.com.noteup;
进口android.app.Activity;
进口android.content.Intent;
进口android.database.Cursor;
进口android.os.Bundle;
进口android.support.v4.app.Fragment;
进口android.support.v4.app.FragmentManager;
进口android.support.v4.widget.DrawerLayout;
进口android.support.v7.app.ActionBarActivity;
进口android.view.LayoutInflater;
进口android.view.Menu;
进口android.view.MenuItem;
进口android.view.View;
进口android.view.ViewGroup;
进口android.view.animation.Animation;
进口android.view.animation.AnimationUtils;
进口android.widget.AdapterView;
进口android.widget.AdapterView.OnItemClickListener;
进口android.widget.Button;
进口android.widget.ListView;
进口android.widget.SimpleCursorAdapter;
进口android.widget.Toast;
公共类MainActivity扩展ActionBarActivity
实现NavigationDrawerFragment.NavigationDrawerCallbacks {
私人NavigationDrawerFragment mNavigationDrawerFragment;
私人的CharSequence mTitle;
私人DBManager dbManager;
私人的ListView ListView的;
私人SimpleCursorAdapter适配器;
最终的String []从=新的String [] {DatabaseHelper.TAG_TITLE,
DatabaseHelper.TAG_TIME,DatabaseHelper._ID,
DatabaseHelper.ADD_TAG
};
最终诠释[]到=新INT [] {R.id.title,R.id.time,R.id.textView4,R.id.fullnote};
私人查看F;
@覆盖
保护无效的onCreate(包savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.main);
dbManager =新DBManager(本);
dbManager.open();
最终的动画animAlpha = AnimationUtils.loadAnimation(这一点,R.anim.alfa);
最终按钮btnmain =(按钮)findViewById(R.id.button4);
最终按钮btn_addnote =(按钮)findViewById(R.id.button2);
最终按钮btn_TakePic =(按钮)findViewById(R.id.button5);
btn_addnote.setVisibility(View.INVISIBLE);
btn_TakePic.setVisibility(View.INVISIBLE);
btnmain.setOnClickListener(新View.OnClickListener(){
@覆盖
公共无效的onClick(视图v){
v.startAnimation(animAlpha);
意图I =新的意图(MainActivity.this,Camera.class);
startActivity(ⅰ);
btn_addnote.setVisibility(View.VISIBLE);
btn_TakePic.setVisibility(View.VISIBLE);
btnmain.setText(X);
}
});
光标光标= dbManager.fetch();
ListView的=(的ListView)findViewById(R.id.lv);
适配器=新SimpleCursorAdapter(MainActivity.this,R.layout.activity_view_record,光标,从到,0);
adapter.notifyDataSetChanged();
listView.setAdapter(适配器);
listView.setOnItemClickListener(新OnItemClickListener(){
@覆盖
公共无效onItemClick(适配器视图<>母公司视图中查看,INT位置,长的id){
Toast.makeText(MainActivity.thisfdfdfd,Toast.LENGTH_SHORT).show();
}
});
mNavigationDrawerFragment =(NavigationDrawerFragment)
。getSupportFragmentManager()findFragmentById(R.id.navigation_drawer);
mTitle =的getTitle();
//设置抽屉。
mNavigationDrawerFragment.setUp(
R.id.navigation_drawer,
(DrawerLayout)findViewById(R.id.drawer_layout));
}
@覆盖
公共无效onNavigationDrawerItemSelected(INT位置){
//更新替换片段的主要内容
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.container,PlaceholderFragment.newInstance(位置+ 1))
。承诺();
}
公共无效onSectionAttached(INT编号){
开关(数){
情况1:
mTitle =的getString(R.string.title_section1);
打破;
案例2:
mTitle =的getString(R.string.title_section2);
打破;
案例3:
mTitle =的getString(R.string.title_section3);
打破;
}
}
@覆盖
公共布尔onCreateOptionsMenu(功能菜单){
如果(!mNavigationDrawerFragment.isDrawerOpen()){
。getMenuInflater()膨胀(R.menu.main,菜单);
}
返回super.onCreateOptionsMenu(菜单);
}
@覆盖
公共布尔onOptionsItemSelected(菜单项项){
开关(item.getItemId())
{
案例R.id.add:
意图add_tag =新的意图(MainActivity.this,AddNote.class);
startActivity(add_tag);
返回true;
}
返回super.onOptionsItemSelected(项目);
}
公共静态类PlaceholderFragment扩展片段{
私有静态最后弦乐ARG_SECTION_NUMBER =section_number标;
公共静态PlaceholderFragment的newInstance(INT sectionNumber){
PlaceholderFragment片段=新PlaceholderFragment();
捆绑的args =新包();
args.putInt(ARG_SECTION_NUMBER,sectionNumber);
fragment.setArguments(参数);
返回片段;
}
公共PlaceholderFragment(){
}
@覆盖
公共查看onCreateView(LayoutInflater充气,容器的ViewGroup,
捆绑savedInstanceState){
查看rootView = inflater.inflate(R.layout.fragment_main,集装箱,假);
返回rootView;
}
@覆盖
公共无效onAttach(活动活动){
super.onAttach(活动);
((MainActivity)活动).onSectionAttached(
。getArguments()调用getInt(ARG_SECTION_NUMBER));
}
}
}
以及最后我得到通过做R&放大器解决方案; d。该解决方案只是增加一个行的列表元素的布局根。安卓descendantFocusability =blocksDescendants
这的工作pretty的罚款在我的情况。bytheway谢谢大家。
I am using listview since long but this time i am facing a weird problem. that is i want to put setonitemclick listner on it but its not working i could not figure it out where is the issue. i have another xml for listview that shows the datas.
xml:
<ListView android:id="@+id/lv"
android:dividerHeight="5dp"
android:choiceMode="singleChoice"
android:clickable="true"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true">
code:
package algonation.com.noteup;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarActivity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Button;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.Toast;
public class MainActivity extends ActionBarActivity
implements NavigationDrawerFragment.NavigationDrawerCallbacks {
private NavigationDrawerFragment mNavigationDrawerFragment;
private CharSequence mTitle;
private DBManager dbManager;
private ListView listView;
private SimpleCursorAdapter adapter;
final String[] from = new String[] {DatabaseHelper.TAG_TITLE,
DatabaseHelper.TAG_TIME,DatabaseHelper._ID,
DatabaseHelper.ADD_TAG
};
final int[] to = new int[] {R.id.title, R.id.time,R.id.textView4,R.id.fullnote};
private View f;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
dbManager = new DBManager(this);
dbManager.open();
final Animation animAlpha = AnimationUtils.loadAnimation(this, R.anim.alfa);
final Button btnmain =(Button)findViewById(R.id.button4);
final Button btn_addnote = (Button)findViewById(R.id.button2);
final Button btn_TakePic =(Button)findViewById(R.id.button5);
btn_addnote.setVisibility(View.INVISIBLE);
btn_TakePic.setVisibility(View.INVISIBLE);
btnmain.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
v.startAnimation(animAlpha);
Intent i = new Intent(MainActivity.this,Camera.class);
startActivity(i);
btn_addnote.setVisibility(View.VISIBLE);
btn_TakePic.setVisibility(View.VISIBLE);
btnmain.setText("X");
}
});
Cursor cursor = dbManager.fetch();
listView = (ListView) findViewById(R.id.lv);
adapter = new SimpleCursorAdapter(MainActivity.this, R.layout.activity_view_record, cursor, from, to, 0);
adapter.notifyDataSetChanged();
listView.setAdapter(adapter);
listView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(MainActivity.this, "fdfdfd", Toast.LENGTH_SHORT).show();
}
});
mNavigationDrawerFragment = (NavigationDrawerFragment)
getSupportFragmentManager().findFragmentById(R.id.navigation_drawer);
mTitle = getTitle();
// Set up the drawer.
mNavigationDrawerFragment.setUp(
R.id.navigation_drawer,
(DrawerLayout) findViewById(R.id.drawer_layout));
}
@Override
public void onNavigationDrawerItemSelected(int position) {
// update the main content by replacing fragments
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.container, PlaceholderFragment.newInstance(position + 1))
.commit();
}
public void onSectionAttached(int number) {
switch (number) {
case 1:
mTitle = getString(R.string.title_section1);
break;
case 2:
mTitle = getString(R.string.title_section2);
break;
case 3:
mTitle = getString(R.string.title_section3);
break;
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
if (!mNavigationDrawerFragment.isDrawerOpen()) {
getMenuInflater().inflate(R.menu.main, menu);
}
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId())
{
case R.id.add:
Intent add_tag = new Intent(MainActivity.this,AddNote.class);
startActivity(add_tag);
return true;
}
return super.onOptionsItemSelected(item);
}
public static class PlaceholderFragment extends Fragment {
private static final String ARG_SECTION_NUMBER = "section_number";
public static PlaceholderFragment newInstance(int sectionNumber) {
PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
return rootView;
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
((MainActivity) activity).onSectionAttached(
getArguments().getInt(ARG_SECTION_NUMBER));
}
}
}
well finally i got solution by doing R&D. the solution is just adding a line to root of the list element layout.android:descendantFocusability="blocksDescendants"
this's working pretty fine in my case.bytheway thanks everybody.
这篇关于ListView控件setOnItemClickListner不工作的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!