本示例所使用的发卡器
package com.usbreadertest;
import android.os.Bundle;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
import androidx.appcompat.app.AppCompatActivity;
import com.reader.ourmifare;
public class NdefbluetoothActivity extends AppCompatActivity {
private TextView tv;
private EditText ctrname;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_ndef_bluetooth);
androidx.appcompat.widget.Toolbar toolbar=findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
tv = findViewById(R.id.sample_text);
tv.setText("操作结果");
ctrname=findViewById(R.id.Edittextname);
ctrname.requestFocus();
}
@Override
public void onBackPressed(){
super.onBackPressed();
finish();
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if(item.getItemId()==android.R.id.home){
finish();
return true;
}
return super.onOptionsItemSelected(item);
}
public void retmain(View view)
{
finish();
}
public void writebluetoothtag(View view)
{
String namestr=ctrname.getText().toString().trim();
if(namestr.length()<1){
tv.setText("请输入蓝牙设备名称!");
ctrname.requestFocus();
return;
}
byte[] btnamebyte=namestr.getBytes();
int btnamelen=btnamebyte.length;
EditText ctrmac=findViewById(R.id.Edittextmacadd);
String macstr=ctrmac.getText().toString().trim();
String[] strArr=macstr.split(":");
if (strArr.length !=6) {
tv.setText("请输入正确的设备MAC地址!");
ctrmac.requestFocus();
return;
}
byte[] btmacbyte=new byte[6];
for (int i=0;i<6;i++){
btmacbyte[i]=(byte)(Integer.parseInt(strArr[i],16));
}
ourmifare.tagbufclear(); //清空数据缓冲
byte status=ourmifare.tagbufaddbluetooth(btnamebyte,btnamelen,btmacbyte); //将要写的NDEF信息加入到写缓冲
if (status==0){
int tagtype=NdefTextActivity.CheckCardType(); //检测发卡器上的标签类型
if(tagtype==-1){
tv.setText("发卡器感应区未发现有效的NDEF标签!");
return;
}
byte[] mypiccserial=new byte[8];
status=NdefTextActivity.WriteTag(tagtype,mypiccserial); //将已生成的NDEF缓冲数据写入不同的标签
String dispinfo=NdefTextActivity.dispwritetag(status ,mypiccserial,tagtype);
tv.setText(dispinfo);
}
}
}
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="3dp"
tools:context=".NdefbluetoothActivity">
<androidx.appcompat.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="30dp"
android:background="?attr/colorPrimary"
app:navigationIcon="@drawable/baseline_arrow_back_ios_24"
app:titleTextColor="@color/white"
tools:ignore="MissingConstraints"
tools:layout_editor_absoluteY="0dp">
<TextView
android:id="@+id/TextViewlabelDispleft"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:text="返回"
android:textColor="@color/white"
android:textSize="16sp"
android:gravity="center"
android:onClick="retmain" />
<TextView
android:id="@+id/TextViewlabelDisp"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="NDEF_蓝牙 "
android:textColor="@color/white"
android:textSize="16sp"
android:gravity="center_horizontal|right|center"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="@+id/TextViewlabelDispleft"
app:layout_constraintTop_toTopOf="parent" />
</androidx.appcompat.widget.Toolbar>
<TextView
android:id="@+id/sample_text"
android:layout_width="fill_parent"
android:layout_height="150dp"
android:padding="3dp"
android:text="操作结果"
android:textSize="12sp"
android:background="@drawable/shape4border"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
/>
<ScrollView
android:id="@+id/scrollViewIC"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_marginBottom="5dp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toBottomOf="@+id/toolbar"
app:layout_constraintBottom_toTopOf="@+id/sample_text"
android:scrollbars="horizontal"
>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="3dp" >
<TextView
android:id="@+id/textlablename"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:text="设备名称:"
android:textSize="16sp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<EditText
android:id="@+id/Edittextname"
android:layout_width="350dp"
android:layout_height="wrap_content"
android:textSize="16sp"
android:gravity="left"
android:text=""
app:layout_constraintBottom_toBottomOf="@+id/textlablename"
app:layout_constraintLeft_toRightOf="@+id/textlablename"
app:layout_constraintTop_toTopOf="@+id/textlablename" />
<TextView
android:id="@+id/textlablemacadd"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:text="MAC地址:"
android:textSize="16sp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toBottomOf="@+id/textlablename" />
<EditText
android:id="@+id/Edittextmacadd"
android:layout_width="350dp"
android:layout_height="wrap_content"
android:textSize="16sp"
android:gravity="left"
android:digits="0123456789ABCDEFabcdef:"
android:maxLength="17"
android:text=""
android:hint="11:22:33:AA:BB:CC"
app:layout_constraintBottom_toBottomOf="@+id/textlablemacadd"
app:layout_constraintLeft_toRightOf="@+id/textlablemacadd"
app:layout_constraintTop_toTopOf="@+id/textlablemacadd" />
<Button
android:id="@+id/butt_Writebluetoothtag"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="10dp"
android:onClick="writebluetoothtag"
android:text="将以上蓝牙连接信息写入标签"
android:textSize="14sp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toBottomOf="@+id/textlablemacadd" />
</androidx.constraintlayout.widget.ConstraintLayout>
</ScrollView>
</androidx.constraintlayout.widget.ConstraintLayout>