首先看程式碼

/**
 * 開啟網路設定介面
*/
public static void openSetting(Activity activity) {
    Intent intent = new Intent("/");
ComponentName cm = new ComponentName("com.android.settings","com.android.settings.WirelessSettings");
intent.setComponent(cm);
intent.setAction("android.intent.action.VIEW");
activity.startActivityForResult( intent , 
 
0);
}

報錯詳情:android.content.ActivityNotFoundException: Unable to find explicit activity class {com.android.settings/com.android.settings.WirelessSettings}; have you declared this activity in your AndroidManifest.xml

android4.0以上的系統設定網路的方式變化了。

public static void openWifiSetting(Activity activity) {
    Intent intent ;
 
    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");
}
    activity.startActivity(intent);
}