我想知道当您更改微调器的值而无需按按钮时,是否有人知道如何开始新的活动。
我已经在网上搜索了好几个小时,但是找不到任何可以指引我正确方向的信息。所以我希望这里有人可以帮助我。
这只是我的标准微调器代码:
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.share);
Button view = (Button) findViewById(R.id.button1);
view.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
startActivity(new Intent("net.thinkbin.TUTORIAL1"));
overridePendingTransition(0, 0);
finish();
}
});
Button menu = (Button) findViewById(R.id.buttonhome);
menu.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
// custom dialog
final Dialog dialog = new Dialog(context);
dialog.setContentView(R.layout.custom);
// set the custom dialog components - text, image and button
TextView text = (TextView) dialog.findViewById(R.id.text);
text.setText("Loading...");
ImageView image = (ImageView) dialog.findViewById(R.id.image);
image.setImageResource(R.drawable.hourglass);
dialog.show();
Thread th = new Thread(new Runnable() {
public void run() {
startActivity(new Intent("net.thinkbin.MENU"));
overridePendingTransition(0, 0);
dialog.dismiss();
finish();
}
});
th.start();
}
});
ArrayAdapter<CharSequence> adapter = ArrayAdapter
.createFromResource(this, R.array.spinnerfood,
android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
Spinner s = (Spinner) findViewById(R.id.spinner1);
s.setAdapter(adapter);
最佳答案
设置setOnItemSelectedListener
,如果选择某项,则调用onItemSelected
,否则,调用onNothingSelected
s.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
String str = (String) arg0.getSelectedItem();
//here print selected value...
System.out.println("String is :: " + str);
//And StartActivity here...
Intent intent = new Intent(YourActivity.this,SecondActivity.class);
startActivity(intent);
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});