cannot be applied to

Question

'getBroadcast(android.content.Context, int, android.content.Intent, int)' in 'android.app.PendingIntent' cannot be applied to '(com.example.otg.MainActivity, int, android.content.Intent, int)'

```java
package com.example.otg;

import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.hardware.usb.UsbDevice;
import android.hardware.usb.UsbManager;
import android.view.View;
import android.widget.Toast;

import com.example.otg.ch340_library.CH340Master;
import com.example.otg.ch340_library.driver.InitCH340;
import com.example.otg.ch340_library.utils.CH340Util;

import io.dcloud.feature.uniapp.annotation.UniJSMethod;
import io.dcloud.feature.uniapp.common.UniModule;




public class MainActivity extends UniModule implements InitCH340.IUsbPermissionListener {

    private static final String ACTION_USB_PERMISSION = "com.linc.USB_PERMISSION";

    @UniJSMethod (uiThread = false)
    public void sendData(String dat) {
        CH340Util.writeData(dat.getBytes(), "ascii");
    }


    @UniJSMethod (uiThread = false)
    public void initData() {
        InitCH340.setListener(this);
        CH340Master.initialize(MyApplication.getContext());

    }



    @Override
    public void result(boolean isGranted) {
        if (!isGranted) {
            PendingIntent mPermissionIntent = PendingIntent.getBroadcast(   this, 0, new Intent(ACTION_USB_PERMISSION), 0);
            InitCH340.getmUsbManager().requestPermission(InitCH340.getUsbDevice(), mPermissionIntent);
        }
    }


}

```

Answer 1

getBroadcast()里面的第一个参数是context，而你传入的是activity，修改试下：

PendingIntent mPermissionIntent = PendingIntent.getBroadcast(MyApplication.getContext(), 0, new Intent(ACTION_USB_PERMISSION), 0);