【Android】设置打印机参数

该程序可实现设置打印机参数，打印机使用socket与手机通讯

设置对方参数页面：

PC端依然用调试工具测试

接下来可以跟我一起操作

下载该jar包以后复制到libs中，并右键加入库中
http://download.csdn.net/download/bfz_50/10211740

常识性提醒
AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?><manifest    xmlns:android="http://schemas.android.com/apk/res/android"    package="com.a123.printer">        <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE"/>        <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>        <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>        <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>        <uses-permission android:name="android.permission.INTERNET"/>    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>    <application        android:allowBackup="true"        android:icon="@mipmap/ic_launcher"        android:label="@string/app_name"        android:roundIcon="@mipmap/ic_launcher_round"        android:supportsRtl="true"        android:theme="@style/AppTheme">        <activity android:name=".MainActivity">            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            intent-filter>        activity>        <activity android:name=".SettingLabelParametersActivity"/>    application>manifest>

activity_main.xml没什么特别的

<?xml version="1.0" encoding="utf-8"?><LinearLayout    android:orientation="vertical"    xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    >    <EditText        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:hint="please enter server ip"        android:id="@+id/id_et_ip"/>    <EditText        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:hint="please enter server port"        android:id="@+id/id_et_port"/>    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="连接"        android:id="@+id/id_bt_openPort"/>    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="从手机下载pcx模板到打印机"        android:id="@+id/id_bt_downloadPCX"        android:visibility="gone"/>    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="设置标签参数"        android:id="@+id/id_bt_setup"/>    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="使用打印机内部条码格式打印"        android:id="@+id/id_bt_barcode"/>    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="使用条码机内部文字格式打印"        android:id="@+id/id_bt_printerFont"/>    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="发送GP-1634TC-XDBQ-1711278.txt内容到打印机"        android:id="@+id/id_bt_send_txt"        />    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="关闭端口"        android:id="@+id/id_bt_closePort"/>LinearLayout>

注意在MainActivity.java中，我使用handler跳转，因为涉及到网络操作，所以我将所有的点击事件都放在线程中，我在第二个按钮中设置了跳转，然后到handler中执行，可以使用Ctrl键+F查看handler的操作
MainActivity.java

package com.a123.printer;import android.content.Intent;import android.os.Bundle;import android.os.Handler;import android.os.Looper;import android.os.Message;import android.support.v7.app.AppCompatActivity;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;import com.example.tscwifidll.TscWifiActivity;import java.io.FileInputStream;/** 该程序可实现向server端发送数据* 【Android消息处理机制(Handler 与Message)---01】* https://www.cnblogs.com/fuck1/p/5513412.html* */public class MainActivity extends AppCompatActivity implements View.OnClickListener{    EditText editText,editText2;    Button  button_open_port,            button_download_pcx,            button_setup,            button_close_port,            button_barcode,            button_printer_font,            button_send_txt;    String ipString;    int port;    Handler handler=new Handler(){        @Override        public void handleMessage(Message msg) {            super.handleMessage(msg);            Toast.makeText(MainActivity.this,                    "success",Toast.LENGTH_SHORT).show();            if (msg.what==1366){                Intent intent= (Intent) msg.obj;                startActivity(intent);            }        }    };    TscWifiActivity TscEthernetDll;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        initView();        initData();        initEvent();    }    private void initView(){        editText= (EditText) findViewById(R.id.id_et_ip);        editText2= (EditText) findViewById(R.id.id_et_port);        button_open_port = (Button) findViewById(R.id.id_bt_openPort);        button_download_pcx= (Button) findViewById(R.id.id_bt_downloadPCX);        button_setup= (Button) findViewById(R.id.id_bt_setup);        button_close_port= (Button) findViewById(R.id.id_bt_closePort);        button_barcode= (Button) findViewById(R.id.id_bt_barcode);        button_printer_font= (Button) findViewById(R.id.id_bt_printerFont);        button_send_txt= (Button) findViewById(R.id.id_bt_send_txt);    }    private void initData(){        //数据，变量的初始化        ipString="10.3.0.87";        port=9100;        TscEthernetDll=new TscWifiActivity();//没有初始化不能使用    }    private void initEvent(){        button_open_port.setOnClickListener(this);        button_download_pcx.setOnClickListener(this);        button_setup.setOnClickListener(this);        button_close_port.setOnClickListener(this);        button_barcode.setOnClickListener(this);        button_printer_font.setOnClickListener(this);        button_send_txt.setOnClickListener(this);    }    private void initOpenPort(){        //为方便调试，直接在代码改IP了        if (!editText.getText().toString().equals("")){            ipString=editText.getText().toString();//切记getText，这里常出错        }        if (!editText2.getText().toString().equals("")){            port=Integer.parseInt(editText2.getText().toString());//切记不要使用Integer.getInteger        }        TscEthernetDll.openport(ipString,port);    }    private void initSetup(){        Intent intent=new Intent(MainActivity.this,SettingLabelParametersActivity.class);        intent.putExtra("ip",ipString);        intent.putExtra("port",port);        Message message=Message.obtain();        message.obj=intent;        message.what=1366;        handler.sendMessage(message);    }    @Override    public void onClick(final View view) {        //在线程中执行        new Thread(new Runnable() {            @Override            public void run() {                switch (view.getId()){                    case R.id.id_bt_openPort:                        initOpenPort();                        break;                    case R.id.id_bt_send_txt:                        TscEthernetDll.sendfile("GP-1634TC-XDBQ-1711278.txt");                        break;                    case R.id.id_bt_downloadPCX:                        TscEthernetDll.downloadpcx("UL.PCX");                        break;                    case R.id.id_bt_setup:                        initSetup();                        break;                    case R.id.id_bt_barcode:                        TscEthernetDll.barcode(                                100, 100, "128", 100, 1,                                0, 3, 3, "123456789");                        break;                    case R.id.id_bt_printerFont:                        TscEthernetDll.printerfont(100, 250, "3", 0, 1,                                1, "987654321");                        break;                    case R.id.id_bt_closePort:                        TscEthernetDll.closeport();                        break;                }                Message message=Message.obtain(handler);                message.sendToTarget();//发送给handler            }        }).start();    }}

SettingLabelParametersActivity.java中用了无数个输入框，用于输入参数，如果为空就使用默认的
setting_label_parameters_layout.xml也没什么特别的

<?xml version="1.0" encoding="utf-8"?><LinearLayout    xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical">    <EditText        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:id="@+id/id_setting_label_height_edit_text"        android:hint="高度：单位mm，默认60"        />    <EditText        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:id="@+id/id_setting_label_width_edit_text"        android:hint="宽度：单位mm，默认100"        />    <EditText        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:hint="打印速度：寸/s，默认4"        android:id="@+id/id_setting_label_speed_edit_text"        />    <EditText        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:hint="打印浓度：0-15，数越大色越重，默认4"        android:id="@+id/id_setting_label_density_edit_text"        />    <EditText        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:hint="使用传感器：0-垂直间距，1-黑标，默认0"        android:id="@+id/id_setting_label_sensor_edit_text"        />    <EditText        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:hint="标签垂直间距高度：单位mm，默认0"        android:id="@+id/id_setting_label_sensor_distance_edit_text"        />    <EditText        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:hint="偏移距离：单位mm，默认为0"        android:id="@+id/id_setting_label_sensor_offset_edit_text"        />    <Button        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:id="@+id/id_setting_label_size_button"        android:text="设置标签"        />LinearLayout>

SettingLabelParametersActivity.java中要注意的是，获取从第一个activity中得到的IP和port，其实TscEthernetDll这个参数只不过是用来连接端口和发送指令的用，在第一个活动释放以后第二个活动连接也是可以的，而且打印机的指令接收也只需要一条一条过去就行，像命令行一样，过去了它就存在打印机ROM（或者flash）中，如果你什么都不做，直接发送打印指令，就会沿用以前的参数，至于获取输入框数据和检测空，基本操作就不多说了

package com.a123.printer;import android.annotation.SuppressLint;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.support.annotation.Nullable;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;import com.example.tscwifidll.TscWifiActivity;/** * Created by Administrator on 2018/1/18/0018. */public class SettingLabelParametersActivity extends Activity{    TscWifiActivity TscEthernetDll;    EditText            editTextSettingLabelWidth,            editTextSettingLabelHeight,            editTextSettingLabelSpeed,            editTextSettingLabelDensity,            editTextSettingLabelSensor,            editTextSettingLabelSensorDistance,            editTextSettingLabelSensorOffset;    Button buttonSettingLabelSize;    int width,height,speed,density,sensor,sensor_distance,sensor_offset,port;    String ipSting;    @Override    protected void onCreate(@Nullable Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.setting_label_parameters_layout);        initView();        initData();        initEvent();    }    private void initView(){        buttonSettingLabelSize=findViewById(R.id.id_setting_label_size_button);        editTextSettingLabelWidth=findViewById(R.id.id_setting_label_width_edit_text);        editTextSettingLabelHeight=findViewById(R.id.id_setting_label_height_edit_text);        editTextSettingLabelSpeed=findViewById(R.id.id_setting_label_speed_edit_text);        editTextSettingLabelDensity=findViewById(R.id.id_setting_label_density_edit_text);        editTextSettingLabelSensor=findViewById(R.id.id_setting_label_sensor_edit_text);        editTextSettingLabelSensorDistance=findViewById(R.id.id_setting_label_sensor_distance_edit_text);        editTextSettingLabelSensorOffset=findViewById(R.id.id_setting_label_sensor_offset_edit_text);        buttonSettingLabelSize=findViewById(R.id.id_setting_label_size_button);    }    private void initData(){        Intent intent=getIntent();        ipSting=intent.getStringExtra("ip");        port=intent.getIntExtra("port",9100);        TscEthernetDll=new TscWifiActivity();        width=100;        height=60;        speed=4;        density=4;        sensor=0;        sensor_distance=0;        sensor_offset=0;//如果输入框为空则使用该值    }    private void initEvent(){        new Thread(new Runnable() {            @Override            public void run() {                TscEthernetDll.openport(ipSting,port);            }        }).start();        buttonSettingLabelSize.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                //此处需要先把各个输入框的值读出来，然后执行设置                //当输入框为空时使用默认值                if (!editTextSettingLabelWidth.getText().toString().equals("")){                    width=Integer.parseInt(editTextSettingLabelWidth.getText().toString());                }                if (!editTextSettingLabelHeight.getText().toString().equals("")){                    height=Integer.parseInt(editTextSettingLabelHeight.getText().toString());                }                if (!editTextSettingLabelSpeed.getText().toString().equals("")){                    speed=Integer.parseInt(editTextSettingLabelSpeed.getText().toString());                }                if (!editTextSettingLabelDensity.getText().toString().equals("")){                    density=Integer.parseInt(editTextSettingLabelDensity.getText().toString());                }                if (!editTextSettingLabelSensor.getText().toString().equals("")){                    sensor=Integer.parseInt(editTextSettingLabelSensor.getText().toString());                }                if (!editTextSettingLabelSensorDistance.getText().toString().equals("")){                    sensor_distance=Integer.parseInt(editTextSettingLabelSensorDistance.getText().toString());                }                if (!editTextSettingLabelSensorOffset.getText().toString().equals("")){                    sensor_offset=Integer.parseInt(editTextSettingLabelSensorOffset.getText().toString());                }                new Thread(new Runnable() {                    @Override                    public void run() {                        TscEthernetDll.setup(width,height,speed,density,sensor,sensor_distance,sensor_offset);                    }                }).start();                Toast.makeText(SettingLabelParametersActivity.this,"设置成功",Toast.LENGTH_SHORT).show();                finish();            }        });    }源码：http://download.csdn.net/download/bfz_50/10211832}

讲的还是比较简单，希望下次多补充一些对线程的描述。

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