嗨我是android的新手所以请帮助我。我想在点击城市上显示图像，并在点击列表视图上显示日历。如何获得它请帮助我。如果应用任何内容或应用的东西不能正常工作请显示我的错误以及给我解决方案。这是我的代码：
MainActivity.java
package com.incraft.assignment;
import java.util.Date;
import java.text.SimpleDateFormat;
import javax.security.auth.PrivateCredentialPermission;
import android.os.Bundle;
import android.app.Activity;
import android.app.Dialog;
import android.app.TimePickerDialog;
import android.app.TimePickerDialog.OnTimeSetListener;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.res.TypedArray;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.DatePicker;
import android.widget.Gallery;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.TimePicker;
import android.widget.Toast;
public class MainActivity extends Activity {
Integer[] imageIDs = { R.drawable.banglore, R.drawable.mathura,
R.drawable.mumbai, R.drawable.akkalkot };
Gallery city;
String[] items;
TimePicker timePicker;
DatePicker datePicker;
int hour, minute;
static final int TIME_DIALOG_ID = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Spinner spin = (Spinner) findViewById(R.id.spinner);
items = getResources().getStringArray(R.array.items_array);
spin.setOnClickListener(new OnClickListener() {
Gallery city = (Gallery) findViewById(R.id.city);
public void onClick(View arg0) {
// TODO Auto-generated method stub
city.setBackgroundResource(R.drawable.banglore);
city.setBackgroundResource(R.drawable.mathura);
city.setBackgroundResource(R.drawable.mumbai);
city.setBackgroundResource(R.drawable.akkalkot);
}
});
timePicker = (TimePicker) findViewById(R.id.timepicker);
timePicker.setIs24HourView(true);
showDialog(TIME_DIALOG_ID);
datePicker = (DatePicker) findViewById(R.id.datepicker);
ArrayAdapter<String> aa = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, items);
spin.setAdapter(aa);
spin.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view,
int position, long id) {
int index = parent.getSelectedItemPosition();
Toast.makeText(getBaseContext(),
"You have selected item:" + items[index],
Toast.LENGTH_SHORT).show();
// selection.setText(items[position]);
}
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
}
protected Dialog onCreateDialog(int id) {
switch (id) {
case TIME_DIALOG_ID:
return new TimePickerDialog(this, mTimeSetListener, hour, minute,
false);
}
return null;
}
private TimePickerDialog.OnTimeSetListener mTimeSetListener = new TimePickerDialog.OnTimeSetListener() {
public void onTimeSet(TimePicker view, int hourOfDay, int minuteOfHour) {
hour = hourOfDay;
minute = minuteOfHour;
SimpleDateFormat timeFormat = new SimpleDateFormat("hh:mm aa");
Date date = new Date(0, 0, 0, hour, minute);
String strDate = timeFormat.format(date);
Toast.makeText(getBaseContext(), "You have selected" + strDate,
Toast.LENGTH_SHORT).show();
}
};
public void onClick(View view) {
Intent i = new Intent();
// Froyo or greater (mind you I just tested this on CM7 and the less
// than froyo one worked so it depends on the phone...)
ComponentName cn = new ComponentName("com.google.android.calendar",
"com.android.calendar.LaunchActivity");
// less than Froyo
cn = new ComponentName("com.android.calendar",
"com.android.calendar.LaunchActivity");
i.setComponent(cn);
startActivity(i);
Toast.makeText(
getBaseContext(),
"Date selected:" + (datePicker.getMonth() + 1) + "/"
+ datePicker.getDayOfMonth() + "/"
+ datePicker.getYear() + "\n" + "Time selected:"
+ timePicker.getCurrentHour() + ":"
+ timePicker.getCurrentMinute(), Toast.LENGTH_SHORT)
.show();
}
}
activity_main.xml中
<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:orientation="vertical"
tools:context=".MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Assignment1" />
<Spinner
android:id="@+id/spinner"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<Button
android:id="@+id/btnset"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:onClick="onClick"
android:text="I am all set!" />
<DatePicker
android:id="@+id/datepicker"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right" />
<TimePicker
android:id="@+id/timepicker"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right" />
<ImageView
android:id="@+id/mumb"
android:layout_width="118dp"
android:layout_height="42dp"
android:src="@drawable/mumbai" />
<Gallery
android:id="@+id/city"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<ImageView
android:id="@+id/math"
android:layout_width="46dp"
android:layout_height="34dp"
android:layout_marginTop="40dp"
android:src="@drawable/mathura" />
<ImageView
android:id="@+id/akka"
android:layout_width="75dp"
android:layout_height="47dp"
android:src="@drawable/akkalkot" />
<ImageView
android:id="@+id/bang"
android:layout_width="58dp"
android:layout_height="36dp"
android:layout_gravity="right"
android:src="@drawable/banglore" />
</LinearLayout>
清单文件是： 的的manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.incraft.assignment"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.incraft.assignment.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Logcat是：
01-02 04:59:53.220: I/dalvikvm-heap(887): Grow heap (frag case) to 4.933MB for 691216-byte allocation
01-02 04:59:53.310: D/dalvikvm(887): GC_FOR_ALLOC freed <1K, 9% free 4987K/5476K, paused 81ms, total 81ms
01-02 04:59:53.440: D/AndroidRuntime(887): Shutting down VM
01-02 04:59:53.440: W/dalvikvm(887): threadid=1: thread exiting with uncaught exception (group=0xb4a55b90)
01-02 04:59:53.460: E/AndroidRuntime(887): FATAL EXCEPTION: main
01-02 04:59:53.460: E/AndroidRuntime(887): Process: com.incraft.assignment, PID: 887
01-02 04:59:53.460: E/AndroidRuntime(887): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.incraft.assignment/com.incraft.assignment.MainActivity}: java.lang.RuntimeException: Don't call setOnClickListener for an AdapterView. You probably want setOnItemClickListener instead
01-02 04:59:53.460: E/AndroidRuntime(887): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2176)
01-02 04:59:53.460: E/AndroidRuntime(887): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2226)
01-02 04:59:53.460: E/AndroidRuntime(887): at android.app.ActivityThread.access$700(ActivityThread.java:135)
01-02 04:59:53.460: E/AndroidRuntime(887): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1397)
01-02 04:59:53.460: E/AndroidRuntime(887): at android.os.Handler.dispatchMessage(Handler.java:102)
01-02 04:59:53.460: E/AndroidRuntime(887): at android.os.Looper.loop(Looper.java:137)
01-02 04:59:53.460: E/AndroidRuntime(887): at android.app.ActivityThread.main(ActivityThread.java:4998)
01-02 04:59:53.460: E/AndroidRuntime(887): at java.lang.reflect.Method.invokeNative(Native Method)
01-02 04:59:53.460: E/AndroidRuntime(887): at java.lang.reflect.Method.invoke(Method.java:515)
01-02 04:59:53.460: E/AndroidRuntime(887): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777)
01-02 04:59:53.460: E/AndroidRuntime(887): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:593)
01-02 04:59:53.460: E/AndroidRuntime(887): at dalvik.system.NativeStart.main(Native Method)
01-02 04:59:53.460: E/AndroidRuntime(887): Caused by: java.lang.RuntimeException: Don't call setOnClickListener for an AdapterView. You probably want setOnItemClickListener instead
01-02 04:59:53.460: E/AndroidRuntime(887): at android.widget.AdapterView.setOnClickListener(AdapterView.java:774)
01-02 04:59:53.460: E/AndroidRuntime(887): at com.incraft.assignment.MainActivity.onCreate(MainActivity.java:64)
01-02 04:59:53.460: E/AndroidRuntime(887): at android.app.Activity.performCreate(Activity.java:5243)
01-02 04:59:53.460: E/AndroidRuntime(887): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
01-02 04:59:53.460: E/AndroidRuntime(887): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2140)
01-02 04:59:53.460: E/AndroidRuntime(887): ... 11 more
01-02 05:04:53.629: I/Process(887): Sending signal. PID: 887 SIG: 9