小编Fro*_*rog的帖子

我有3个输入文本,我想显示一个div,如果一个超过3,一个不同的div,如果2个输入超过3,等等.我怎么能用javascript做到这一点？

<input type="text" id="text1" name="text1" />
<input type="text" id="text2" name="text2" />
<input type="text" id="text3" name="text3" />

我试过这个,但它不起作用

function display() {
    if ($('#text').val() != '') {
        document.getElementById('green').style.display = 'block';
    }???
}

我是ServiceAndroid的新用户,我很困惑.我有和Activity我想检查网络连接的所有时间(wifi或3g).我实现了一个简单的Service和一个BroadcastReveiver.

这里的代码 Service

public class NetworkCheck extends IntentService {

private final String CONNECTION = "connection";

public NetworkCheck(String name) {
    super(name);
}

@Override
protected void onHandleIntent(Intent workIntent) {

    ConnectivityManager conMgr = (ConnectivityManager)getSystemService(getApplicationContext().CONNECTIVITY_SERVICE);


    String dataString = workIntent.getDataString();

    if ( conMgr.getNetworkInfo(0).getState() == NetworkInfo.State.DISCONNECTED
            || conMgr.getNetworkInfo(1).getState() == NetworkInfo.State.DISCONNECTED) {

        // notify user you are not online
        Intent localIntent = new Intent().putExtra(CONNECTION, 0);

        LocalBroadcastManager.getInstance(this).sendBroadcast(localIntent);

    }
}

这里的代码 BroadcastReceiver

public class NetworkReceiver extends BroadcastReceiver{

    @Override
    public void onReceive(Context …