我正在制作一个用户可以选择搜索患者的应用程序。当用户搜索患者时,结果会出现在列表视图中。但问题是结果不够亮,用户无法正常看到,正如您在下面的应用程序屏幕截图中看到的那样(在搜索患者按钮下方,结果显示为 1234567890,abc,xyz。请仔细看。)
我不知道如何使它正确明亮。同样的问题也出现在真正的 Android 设备上。请有人能帮帮我。
以下是我的代码:-
SearchPatient.java
public class SearchPatient extends Activity implements PacketListener, OnItemClickListener, TextWatcher
{
private EditText mobileNumber;
private EditText firstName;
private EditText lastName;
private ListView patients;
private ArrayAdapter<String> adapter;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.search_patient);
mobileNumber = (EditText) findViewById(R.id.mobile_number);
mobileNumber.addTextChangedListener(this);
firstName = (EditText) findViewById(R.id.first_name);
firstName.addTextChangedListener(this);
lastName = (EditText) findViewById(R.id.last_name);
lastName.addTextChangedListener(this);
patients = (ListView) findViewById(R.id.patients);
patients.setOnItemClickListener(this);
adapter = new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_list_item_1);
patients.setAdapter(adapter);
PacketFilter filter = new MessageTypeFilter(Message.Type.chat);
Login.connection.addPacketListener(this, filter);
}
@Override
protected void onResume()
{
super.onResume();
PacketFilter filter = new MessageTypeFilter(Message.Type.chat);
Login.connection.addPacketListener(this, filter);
}
@Override
protected void onStop()
{
Login.connection.removePacketListener(this);
super.onStop();
}
@Override
public void onTextChanged(CharSequence charSequence, int i1, int i2, int i3)
{
return;
}
@Override
public void afterTextChanged(Editable editable)
{
adapter.clear();
String mobileNumber = this.mobileNumber.getText().toString();
String firstName = this.firstName.getText().toString();
String lastName = this.lastName.getText().toString();
if(mobileNumber.equals(""))
mobileNumber = null;
if(firstName.equals(""))
firstName = null;
if(lastName.equals(""))
lastName = null;
searchPatient(mobileNumber, firstName, lastName);
}
@Override
public void beforeTextChanged(CharSequence charSequence, int i1, int i2, int i3)
{
return;
}
public void searchPatient(View view)
{
adapter.clear();
String mobileNumber = this.mobileNumber.getText().toString();
String firstName = this.firstName.getText().toString();
String lastName = this.lastName.getText().toString();
if(mobileNumber.equals(""))
mobileNumber = null;
if(firstName.equals(""))
firstName = null;
if(lastName.equals(""))
lastName = null;
searchPatient(mobileNumber, firstName, lastName);
}
private void searchPatient(String mobileNumber, String firstName, String lastName)
{
Login.connection.sendPacket(getMessage(buildCommand(mobileNumber, firstName, lastName)));
}
private String buildCommand(String mobileNumber, String firstName, String lastName)
{
StringBuilder commandBuilder = new StringBuilder();
commandBuilder.append("##?##");
commandBuilder.append("##app:patients##");
commandBuilder.append("##" + mobileNumber + ", " + firstName + ", " + lastName + "##");
return commandBuilder.toString();
}
private Message getMessage(String body)
{
Message message = new Message("friend@domain", Message.Type.chat);
message.setBody(body);
return message;
}
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l)
{
String[] record = adapterView.getItemAtPosition(i).toString().split("\\,");
if(record.length == 1)
return;
Intent patientDetails = new Intent(getApplicationContext(), PatientDetails.class);
patientDetails.putExtra(PatientDetails.ACTION, PatientDetails.READ_PATIENT);
patientDetails.putExtra(PatientDetails.RECORD, record);
startActivity(patientDetails);
}
@SuppressLint("NewApi")
@Override
public void processPacket(Packet packet)
{
Message message = (Message) packet;
String reply = message.getBody().trim();
if(reply.contains("."))
{
String[] records = reply.split("\\.");
if(Build.VERSION.SDK_INT >= 11)
adapter.addAll(records);
else
for(int i = 0; i < records.length; i++)
adapter.add(records[i]);
}
else
adapter.add(reply);
adapter.notifyDataSetChanged();
}
@Override
public boolean onCreateOptionsMenu(Menu menu)
{
getMenuInflater().inflate(R.menu.menu, menu);
return true;
}
}
search_patient.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:orientation="vertical"
tools:context=".SearchPatient" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/mobile_number"/>
<EditText
android:id="@+id/mobile_number"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:inputType="number"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/and_or"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/first_name"/>
<EditText
android:id="@+id/first_name"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:inputType="text"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/last_name"/>
<EditText
android:id="@+id/last_name"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:inputType="text"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/search_patient"
android:onClick="searchPatient"/>
<ListView
android:id="@+id/patients"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scrollbars="vertical"/>
</LinearLayout>