From e04c5f8877f1f3c5dce49117147c768b68022ad2 Mon Sep 17 00:00:00 2001
From: Marcos Diez <marcos@unitron.com.br>
Date: Sat, 17 Jan 2015 14:34:31 +0200
Subject: [PATCH] User can now set DTR and RTS on the fly

---
 .../examples/SerialConsoleActivity.java       | 40 +++++++++++++++++++
 .../src/main/res/layout/serial_console.xml    | 30 +++++++++++---
 .../src/main/res/values/strings.xml           |  4 +-
 3 files changed, 67 insertions(+), 7 deletions(-)

diff --git a/usbSerialExamples/src/main/java/src/com/hoho/android/usbserial/examples/SerialConsoleActivity.java b/usbSerialExamples/src/main/java/src/com/hoho/android/usbserial/examples/SerialConsoleActivity.java
index d30ff51..1a7d71d 100644
--- a/usbSerialExamples/src/main/java/src/com/hoho/android/usbserial/examples/SerialConsoleActivity.java
+++ b/usbSerialExamples/src/main/java/src/com/hoho/android/usbserial/examples/SerialConsoleActivity.java
@@ -28,6 +28,8 @@ import android.hardware.usb.UsbDeviceConnection;
 import android.hardware.usb.UsbManager;
 import android.os.Bundle;
 import android.util.Log;
+import android.widget.CheckBox;
+import android.widget.CompoundButton;
 import android.widget.ScrollView;
 import android.widget.TextView;
 
@@ -64,6 +66,8 @@ public class SerialConsoleActivity extends Activity {
     private TextView mTitleTextView;
     private TextView mDumpTextView;
     private ScrollView mScrollView;
+    private CheckBox chkDTR;
+    private CheckBox chkRTS;
 
     private final ExecutorService mExecutor = Executors.newSingleThreadExecutor();
 
@@ -95,8 +99,30 @@ public class SerialConsoleActivity extends Activity {
         mTitleTextView = (TextView) findViewById(R.id.demoTitle);
         mDumpTextView = (TextView) findViewById(R.id.consoleText);
         mScrollView = (ScrollView) findViewById(R.id.demoScroller);
+        chkDTR = (CheckBox) findViewById(R.id.checkBoxDTR);
+        chkRTS = (CheckBox) findViewById(R.id.checkBoxRTS);
+
+        chkDTR.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+                try {
+                    sPort.setDTR(isChecked);
+                }catch (IOException x){}
+            }
+        });
+
+        chkRTS.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+                try {
+                    sPort.setRTS(isChecked);
+                }catch (IOException x){}
+            }
+        });
+
     }
 
+
     @Override
     protected void onPause() {
         super.onPause();
@@ -112,6 +138,11 @@ public class SerialConsoleActivity extends Activity {
         finish();
     }
 
+    void showStatus(TextView theTextView, String theLabel, boolean theValue){
+        String msg = theLabel + ": " + (theValue ? "enabled" : "disabled") + "\n";
+        theTextView.append(msg);
+    }
+
     @Override
     protected void onResume() {
         super.onResume();
@@ -130,6 +161,15 @@ public class SerialConsoleActivity extends Activity {
             try {
                 sPort.open(connection);
                 sPort.setParameters(115200, 8, UsbSerialPort.STOPBITS_1, UsbSerialPort.PARITY_NONE);
+
+                showStatus(mDumpTextView, "CD  - Carrier Detect", sPort.getCD());
+                showStatus(mDumpTextView, "CTS - Clear To Send", sPort.getCTS());
+                showStatus(mDumpTextView, "DSR - Data Set Ready", sPort.getDSR());
+                showStatus(mDumpTextView, "DTR - Data Terminal Ready", sPort.getDTR());
+                showStatus(mDumpTextView, "DSR - Data Set Ready", sPort.getDSR());
+                showStatus(mDumpTextView, "RI  - Ring Indicator", sPort.getRI());
+                showStatus(mDumpTextView, "RTS - Request To Send", sPort.getRTS());
+
             } catch (IOException e) {
                 Log.e(TAG, "Error setting up device: " + e.getMessage(), e);
                 mTitleTextView.setText("Error opening device: " + e.getMessage());
diff --git a/usbSerialExamples/src/main/res/layout/serial_console.xml b/usbSerialExamples/src/main/res/layout/serial_console.xml
index 39f01da..8e25ee9 100644
--- a/usbSerialExamples/src/main/res/layout/serial_console.xml
+++ b/usbSerialExamples/src/main/res/layout/serial_console.xml
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
     android:layout_width="match_parent"
     android:layout_height="match_parent" >
-
     <TextView
         android:id="@+id/demoTitle"
         android:layout_width="match_parent"
@@ -15,15 +15,34 @@
     <View
         android:id="@+id/separator"
         android:layout_width="match_parent"
+        android:layout_height="1dip"
+        android:background="#eeeeee" />
+
+    <CheckBox
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/textBtnDTR"
+        android:id="@+id/checkBoxDTR" />
+
+
+    <CheckBox
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/textBtnRTS"
+        android:id="@+id/checkBoxRTS" />
+
+    <View
+        android:id="@+id/separator2"
+        android:layout_width="match_parent"
         android:layout_below="@+id/demoTitle"
         android:layout_height="1dip"
         android:background="#eeeeee" />
-    
+
     <ScrollView
         android:id="@+id/demoScroller"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_below="@+id/separator" >
+         >
 
         <TextView
             android:id="@+id/consoleText"
@@ -32,5 +51,4 @@
             android:layout_height="wrap_content"
             android:typeface="monospace" />
     </ScrollView>
-
-</RelativeLayout>
\ No newline at end of file
+</LinearLayout>
diff --git a/usbSerialExamples/src/main/res/values/strings.xml b/usbSerialExamples/src/main/res/values/strings.xml
index 2cae406..c818764 100644
--- a/usbSerialExamples/src/main/res/values/strings.xml
+++ b/usbSerialExamples/src/main/res/values/strings.xml
@@ -4,5 +4,7 @@
     <string name="app_title">USB Serial Example</string>
     <string name="app_name">Serial Example</string>
     <string name="refreshing">Refreshing...</string>
-    
+    <string name="textBtnRTS">RTS - Request To Send</string>
+    <string name="textBtnDTR">DTR - Data Terminal Ready</string>
+
 </resources>