Android判断网络状态的代码

本文实例为大家分享了Android判断网络状态的具体代码,供大家参考,具体内容如下

一、权限

需要在AndroidManifest.xml 添加访问权限

<usespermissionandroid:name="android.permission.ACCESS_NETWORK_STATE"/>

<uses-permission android:name="android.permission.INTERNET"/>

二、判断连接状态

/**

* 判断是否有网络连接

* @param context

* @return

*/

public static boolean isConnect(Context context) {

boolean _isConnect = false;

ConnectivityManager conManager = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);

NetworkInfo network = conManager.getActiveNetworkInfo();

if (network != null) {

_isConnect = conManager.getActiveNetworkInfo().isAvailable();

}

return _isConnect;

}

三、打开网络设置对话框

/**

* 打开系统网络设置界面

* @param context

*/

public void setNetworkMethod(final Context context) {

AlertDialog.Builder builder = new AlertDialog.Builder(context);

builder.setTitle("提示信息").setMessage("未发现网络连接,是否进行设置?").setPositiveButton("设置", new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

// TODO Auto-generated method stub

Intent intent = null;

//3.0之前和之后API不同,需要判断

if (android.os.Build.VERSION.SDK_INT > 10) {

intent = new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS);

} else {

intent = new Intent();

ComponentName component = new ComponentName("com.android.settings", "com.android.settings.WirelessSettings");

intent.setComponent(component);

intent.setAction("android.intent.action.VIEW");

}

context.startActivity(intent);

}

}).setNegativeButton("取消", new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

// TODO Auto-generated method stub

dialog.dismiss();

}

}).show();

}

四、调用

button.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

if (!isConnect(TwoActivity.this)){

setNetworkMethod(TwoActivity.this);

}

}

});

以上是 Android判断网络状态的代码 的全部内容, 来源链接: utcz.com/z/336912.html

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