在SplashScreen期间检查互联网
在SplashScreen期间检查互联网
提问于 2016-06-02 04:29:41
嗯，在我的SplashScreen屏幕之后。我的应用程序将检查互联网连接。如果有可用的互联网，它将呼叫WebView。否则，它将调用一个错误的活动。
但我如何配对，以检查互联网在SplashScreen期间？
活动闪屏：
public class Splash extends Activity{
private static int tempo_splash = 1000;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.splash);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); // Para o layout preencher toda tela do cel (remover a barra de tit.)
new Timer().schedule(new TimerTask() {
public void run() {
finish();
Intent intent = new Intent();
intent.setClass(Splash.this, MainActivity.class); //Chamando a classe splash e a principal (main)
startActivity(intent);
}
}, 2000);
}
}MY CLASS CheckINTERNET:
public class CheckInternet extends Activity{
boolean status = false;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.internet);
Button btnStatus = (Button) findViewById(R.id.check_btn);
btnStatus.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
status = checkInternetConnection();
if (status) {
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
final Intent mainIntent = new Intent(CheckInternet.this, MainActivity.class);
CheckInternet.this.startActivity(mainIntent);
CheckInternet.this.finish();
}
}, 5000);
}
else {
Toast.makeText(getApplicationContext(), "You don't have Internet connection. Try Again", Toast.LENGTH_LONG).show();
}
}
});
}
public boolean checkInternetConnection() {
ConnectivityManager connectivity = (ConnectivityManager)getApplicationContext().getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivity != null) {
NetworkInfo[] inf = connectivity.getAllNetworkInfo();
if (inf != null) {
for (int i = 0; i < inf.length; i++) {
return true;
}
}
}
return false;
}
}回答 5
Stack Overflow用户
发布于 2016-06-02 13:01:45
试试这段代码。也许能帮到你
public class SplashScreen extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
setContentView(R.layout.splash_screen);
if(isWorkingInternetPersent()){
splash();
}
else{
showAlertDialog(SplashScreen.this, "Internet Connection",
"You don't have internet connection", false);
}
}
public void splash() {
Thread timerTread = new Thread() {
public void run() {
try {
sleep(4000);
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
Intent intent = new Intent(getApplicationContext(), New_Main_Activity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
finish();
}
}
};
timerTread.start();
}
public boolean isWorkingInternetPersent() {
ConnectivityManager connectivityManager = (ConnectivityManager) getBaseContext()
.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivityManager != null) {
NetworkInfo[] info = connectivityManager.getAllNetworkInfo();
if (info != null)
for (int i = 0; i < info.length; i++)
if (info[i].getState() == NetworkInfo.State.CONNECTED) {
return true;
}
}
return false;
}
public void showAlertDialog(Context context, String title, String message, Boolean status) {
AlertDialog alertDialog = new AlertDialog.Builder(context).create();
// Setting Dialog Title
alertDialog.setTitle(title);
// Setting Dialog Message
alertDialog.setMessage(message);
// Setting alert dialog icon
// alertDialog.setIcon((status) ? R.mipmap.ic_launcher : R.mipmap.ic_launcher);
// Setting OK Button
alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
finish();
System.exit(0);
}
});
// Showing Alert Message
alertDialog.show();
}Stack Overflow用户
发布于 2016-06-02 04:43:31
你不应该仅仅为了检查连通性而打算这样做。我的建议是创建一个“实用程序”类-调用是MyConnectivityChecker，并在其中添加一个静态方法(isConnected)，其中包含以下代码：
public class MyConnectivityChecker {
public static boolean isConnected(Context context){
boolean connected = false;
ConnectivityManager connectivityManager = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo wifi = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
NetworkInfo mobile = connectivityManager .getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
connected = (wifi.isAvailable() && wifi.isConnectedOrConnecting() || (mobile.isAvailable() && mobile.isConnectedOrConnecting()));
return connected;
}
}然后，在您的Splash活动中，只要您想要检查连通性，就可以像这样调用isConnected方法：
MyConnectivityChecker.isConnected(this)例如，您可以这样做：
if(MyConnectivityChecker.isConnected(this)){
//connectivity available
}
else{
//no connectivity
}我希望这能帮到你。试一试，让我知道。
Stack Overflow用户
发布于 2016-06-02 12:55:43
你能做的就是检查你的SplashScreen定时器内部是否有网络连接。
new Timer().schedule(new TimerTask() {
public void run() {
if(isOnline()){
Intent intent = new Intent(Splash.this,WebViewActivity.class);
startActivity(intent);
finish();
}else{
Intent intent = new Intent(Splash.this,ErrorActivity.class);
startActivity(intent);
finish();
}
}
}, 2000);对于互联网检查，您可以使用此方法。
public boolean isOnline() {
System.out.println("executeCommand");
Runtime localRuntime = Runtime.getRuntime();
try {
int i = localRuntime.exec("/system/bin/ping -c 1 8.8.8.8")
.waitFor();
System.out.println(" mExitValue " + i);
boolean bool = false;
if (i == 0) {
bool = true;
}
return bool;
} catch (InterruptedException localInterruptedException) {
localInterruptedException.printStackTrace();
System.out.println(" Exception:" + localInterruptedException);
return false;
} catch (IOException localIOException) {
localIOException.printStackTrace();
System.out.println(" Exception:" + localIOException);
}
return false;
} 注意：将此方法添加到SplashScreen中的onCreate()方法之外。
快乐的编码..
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/37578201
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