質問編集履歴
1
質問内容がほとんど関係無い初歩ミスだった
test
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File without changes
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test
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@@ -40,147 +40,9 @@
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```java
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import android.content.Context;
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import android.hardware.usb.UsbManager;
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import android.os.Bundle;
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import android.support.v7.app.AppCompatActivity;
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import android.view.View;
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import android.widget.Button;
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import android.widget.TextView;
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import com.hoho.android.usbserial.driver.UsbSerialDriver;
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import com.hoho.android.usbserial.driver.UsbSerialProber;
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import java.io.IOException;
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public class MainActivity extends AppCompatActivity {
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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Button button1 = (Button) findViewById(R.id.button);
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button1.setOnClickListener(new View.OnClickListener()
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{
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public void onClick(View v) {
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UsbManager manager = (UsbManager) getSystemService(Context.USB_SERVICE);
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UsbSerialDriver usb = UsbSerialProber.acquire(manager);
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try {
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usb.open();
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usb.setBaudRate(38400);
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String str = "start\r\n";
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usb.write(str.getBytes("ascii"),7);
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usb.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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});
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Button button2 = (Button) findViewById(R.id.button2);
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button2.setOnClickListener(new View.OnClickListener()
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{public void onClick(View v) {
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UsbManager manager = (UsbManager) getSystemService(Context.USB_SERVICE);
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final UsbSerialDriver usb = UsbSerialProber.acquire(manager);
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146
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try {
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usb.open();
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usb.setBaudRate(38400);
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byte buf[] = new byte[256];
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int num = usb.read(buf, buf.length);
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String str = new String(buf);
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TextView textview = (TextView) findViewById(R.id.textview);
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textview.setText(str);
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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});
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}
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}
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47
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```
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48
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