Android 上的 AutoCompleteTextView 单击事件
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AutoCompleteTextView click event on Android
提问by Ally
I have successfully implemented my AutoCompleteTextView which is based off an SQLitequery and is placed in an array adapter. That's all working beautifully, however I can't get my onclickevent working.
我已经成功实现了我的 AutoCompleteTextView，它基于SQLite查询并放置在数组适配器中。这一切都很好，但是我无法让我的 onclickevent 工作。
I just want to create an intent to pass the selected value to a new activity. I know how to create an onclicklistener. I am just unsure about how to apply it to the dropdown box of the AutoCompleteTextView.
我只想创建一个将选定值传递给新活动的意图。我知道如何创建一个 onclicklistener。我只是不确定如何将它应用于 AutoCompleteTextView 的下拉框。
回答by Ally
Nevermind. I've solved it. I was just executing poorly. The code below autocompletes my textview based off a simple SELECT SQLite statement and executes when the user selects the university from the dropdown list.
没关系。我已经解决了。我只是表现不佳。下面的代码基于一个简单的 SELECT SQLite 语句自动完成我的文本视图，并在用户从下拉列表中选择大学时执行。
The onclick event creates a new intent and starts a new activity passing the selection to this activity within the intent.
onclick 事件创建一个新的意图并启动一个新的活动，将选择传递给该意图内的该活动。
final AutoCompleteTextView textView = (AutoCompleteTextView) findViewById(R.id.ac_university);
String[] universities = myDbHelper.getAllUnis(db);
// Print out the values to the log
for(int i = 0; i < universities.length; i++)
{
Log.i(this.toString(), universities[i]);
}
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, R.layout.list_item, universities);
textView.setAdapter(adapter);
//textView.setOnItemSelectedListener(this);
textView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
Intent intent = new Intent(Main.this, Campus.class);
Bundle bundle = new Bundle();
bundle.putString("university_name", arg0.getItemAtPosition(arg2).toString());
bundle.putLong("_id", arg3);
intent.putExtras(bundle);
startActivity(intent);
}
回答by Shouvik
putExtra function can be used for this purpose.
putExtra 函数可用于此目的。
Here is an example...
这是一个例子...
Form the sending activity:
形成发送活动：
lv.setOnItemClickListener(new OnItemClickListener()
{
public void onItemClick(AdapterView<?> parent, View v, int pos, long id) {
ApplicationInfo x = appinstalled.get(pos);
PackageInfo y = appinstall.get(pos);
//Intent i = new Intent(InstalledPackages.this, Information.class);
i = new Intent(InstalledPackages.this, Information.class);
i.putExtra("i",x);
i.putExtra("j", y);
startActivity(i);
}
});
}
On the receiving side:
在接收端：
super.onCreate(savedInstanceState);
Intent myIntent = getIntent();
ApplicationInfo i = (ApplicationInfo)myIntent.getParcelableExtra("i");
PackageInfo j = (PackageInfo)myIntent.getParcelableExtra("j");
