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我的基本Android应用程序显示了我手机上所有安装的应用程序的列表。我已经看过谷歌的教程如何做到这一点，但他们很混乱。我想要一个功能添加到我的行动吧像谷歌对他们的应用程序，所以我可以为一个应用程序如何在我的操作栏中实现搜索？
public class HomeActivity extends ActionBarActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
setTitle("Apps");
getActionBar();
loadApps();
loadListView();
addClickListener();
}
private PackageManager manager;
private List<AppDetail> apps;
private void loadApps(){
manager = getPackageManager();
apps = new ArrayList<AppDetail>();
Intent i = new Intent(Intent.ACTION_MAIN, null);
i.addCategory(Intent.CATEGORY_LAUNCHER);
List<ResolveInfo> availableActivities = manager.queryIntentActivities(i, 0);
for(ResolveInfo ri:availableActivities){
AppDetail app = new AppDetail();
app.label = ri.loadLabel(manager);
app.name = ri.activityInfo.packageName;
app.icon = ri.activityInfo.loadIcon(manager);
apps.add(app);
}
}
private ListView list;
private void loadListView(){
list = (ListView)findViewById(R.id.apps_list);
ArrayAdapter<AppDetail> adapter = new ArrayAdapter<AppDetail>(this,
R.layout.list_item,
apps) {
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if(convertView == null){
convertView = getLayoutInflater().inflate(R.layout.list_item, null);
}
ImageView appIcon = (ImageView)convertView.findViewById(R.id.item_app_icon);
appIcon.setImageDrawable(apps.get(position).icon);
TextView appLabel = (TextView)convertView.findViewById(R.id.item_app_label);
appLabel.setText(apps.get(position).label);
return convertView;
}
};
list.setAdapter(adapter);
}
private void addClickListener(){
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> av, View v, int pos,
long id) {
Intent i = manager.getLaunchIntentForPackage(apps.get(pos).name.toString());
HomeActivity.this.startActivity(i);
}
});
}
}