我的WiFi信号强度测试仪存在严重问题
我遇到的错误:
搞定了!全部谢谢
package com.example.wifilocator;
import android.content.Context;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.os.Build;
import android.support.annotation.RequiresApi;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;
import com.example.wifilocator.R;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
class wifi {
int signalStrength = 0;
int loopToggle = 0;
@RequiresApi(api = Build.VERSION_CODES.ICE_CREAM_SANDWICH)
public void loop() throws InterruptedException {
while (loopToggle == 0) {
WifiManager signalStrength = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
String wifiInfo = WifiManager.EXTRA_WIFI_INFO;
Thread.sleep(1000);
}
}
}
我对Android Studio和开发人员都很陌生。谢谢你的帮助!
答案 0 :(得分:2)
class wifi {
int signalStrength = 0;
int loopToggle = 0;
Context context = MainActivity.this ;
@RequiresApi(api = Build.VERSION_CODES.ICE_CREAM_SANDWICH)
public void loop() throws InterruptedException {
while (loopToggle == 0) {
WifiManager signalStrength = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
String wifiInfo = WifiManager.EXTRA_WIFI_INFO;
Thread.sleep(1000);
}
}
你需要申报你班级的上下文,试试看看是否有帮助