问题
I need to take the date information from a CalendarView into another activity so that i can store the information in a database properly.
The activity I need to use the date on is this:
package com.example.calendar;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CalendarView;
import android.widget.EditText;
import android.app.Activity;
import android.content.Intent;
import static android.provider.BaseColumns._ID;
import static com.example.calendar.Constants.TABLE_NAME;
import static com.example.calendar.Constants.TIME;
import static com.example.calendar.Constants.TITLE;
import static com.example.calendar.Constants.DETAILS;
import static com.example.calendar.Constants.DATE;
import static com.example.calendar.Constants.CONTENT_URI;
import android.content.ContentValues;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
public class CreateAppointment extends Activity implements OnClickListener{
private static String[] FROM = { _ID, DATE, TIME, TITLE, DETAILS};
private static String ORDER_BY = TIME + " ASC";
AppointmentsData appointments;
CalendarView calendar;
String string;
EditText nameTextBox;
EditText timeTextBox;
EditText detailsTextBox;
Button createButton;
SQLiteDatabase db;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.create);
createButton = (Button) findViewById(R.id.apptSave);
nameTextBox = (EditText)findViewById(R.id.apptName);//Assign the global name box
timeTextBox = (EditText)findViewById(R.id.apptTime);//Assign the global time box
detailsTextBox = (EditText)findViewById(R.id.apptDetails);//Assign the global details box
calendar = (CalendarView)findViewById(R.id.calendar);
createButton.setOnClickListener(this);
appointments = new AppointmentsData(this);
string = "row";
}
private void addAppointment(String string) {
/* Insert a new record into the Events data
source. You would do something similar
for delete and update. */
String getTitle = nameTextBox.getText().toString();
String getTime = timeTextBox.getText().toString();
String getDetails = detailsTextBox.getText().toString();
db = appointments.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(DATE, calendar.getDate());
values.put(TIME, getTime);
values.put(TITLE, getTitle);
values.put(DETAILS, getDetails);
getContentResolver().insert(CONTENT_URI, values);
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch(v.getId()){
case R.id.apptSave:
addAppointment(string);
finish();
break;
}
}
}
And I need to extract the date from the MainActivity, which is:
package com.example.calendar;
import java.util.Calendar;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import static android.provider.BaseColumns._ID;
import static com.example.calendar.Constants.TABLE_NAME;
import static com.example.calendar.Constants.TIME;
import static com.example.calendar.Constants.TITLE;
import static com.example.calendar.Constants.DETAILS;
import android.content.ContentValues;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
public class MainActivity extends Activity implements OnClickListener {
private AppointmentsData appointments;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
View createButton = findViewById(R.id.btn_create);
View editButton = findViewById(R.id.btn_viewEdit);
View deleteButton = findViewById(R.id.btn_delete);
View moveButton = findViewById(R.id.btn_move);
View searchButton = findViewById(R.id.btn_search);
View translateButton = findViewById(R.id.btn_translate);
View exitButton = findViewById(R.id.exit);
createButton.setOnClickListener(this);
editButton.setOnClickListener(this);
deleteButton.setOnClickListener(this);
moveButton.setOnClickListener(this);
searchButton.setOnClickListener(this);
translateButton.setOnClickListener(this);
exitButton.setOnClickListener(this);
appointments = new AppointmentsData(this);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent i;
switch (v.getId()) {
case R.id.btn_create:
i = new Intent(this, CreateAppointment.class);
startActivity(i);
break;
case R.id.btn_viewEdit:
i = new Intent(this, EditViewAppointment.class);
startActivity(i);
break;
case R.id.btn_move:
i = new Intent(this, MoveAppointment.class);
startActivity(i);
break;
case R.id.btn_delete:
i = new Intent(this, DeleteAppointment.class);
startActivity(i);
break;
case R.id.btn_search:
i = new Intent(this, SearchAppointment.class);
startActivity(i);
break;
case R.id.btn_translate:
i = new Intent(this, TranslateAppointment.class);
startActivity(i);
break;
case R.id.exit:
finish();
break;
}
}
}
EDIT:
Also, here is my layout for the main activity:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:background="@color/background"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="225dp"
android:orientation="vertical"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin" >
<CalendarView
android:id="@+id/calendar"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
<TableLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_marginBottom="2dip"
android:layout_marginTop="2dip"
android:stretchColumns="*" >
<TableRow>
<Button
android:id="@+id/btn_create"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/create" />
<Button
android:id="@+id/btn_viewEdit"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/viewEdit" />
</TableRow>
<TableRow>
<Button
android:id="@+id/btn_delete"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/delete" />
<Button
android:id="@+id/btn_move"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/move" />
</TableRow>
<TableRow>
<Button
android:id="@+id/btn_search"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/search" />
<Button
android:id="@+id/btn_translate"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/translate" />
</TableRow>
</TableLayout>
<Button
android:id="@+id/exit"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/exit"/>
</LinearLayout>
How can I solve this?
回答1:
to transfer data between activities you can use use baskets
The activity which you generate the data
i = new Intent(this, DeleteAppointment.class);
i.putExtra("name", strFirstName);
startActivity(i);
The activity which you are retrieving the data
@Override
protected void onHandleIntent(Intent intent)
{
String action = intent.getAction();
String name= intent.getStringExtra("name");
}
来源：https://stackoverflow.com/questions/22462288/get-date-from-calendarview-to-other-activity