package com.example.tracker;import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.widget.ListView;public class MainActivity extends Activity { @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ListView listView = (ListView)findViewById(R.id.times_list);
TimeTrackerAdapter timeTrackerAdapter = new TimeTrackerAdapter();
listView.setAdapter(timeTrackerAdapter);
} @Override
public boolean onCreateOptionsMenu(Menu menu)
{
// Inflate the menu; this adds items to the action bar if it is present. MenuInflater menuInflater = getMenuInflater();
menuInflater.inflate(R.menu.main, menu);
return super.onCreateOptionsMenu(menu); }
public boolean onMenuItemSeletced(int featureId, MenuItem item)
{
if (item.getItemId() == R.id.add_time_menu_item)
{
Intent intent = new Intent(this, AddTimeActivity.class);
startActivity(intent);
}
return true;
}}package com.example.tracker;import android.app.Activity;
import android.os.Bundle;public class AddTimeActivity extends Activity { public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.add_time);
}
}
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"> <TextView android:text="Time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp" />
<EditText android:id="@+id/time_view"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"/>
<TextView android:text="Notes"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp" />
<EditText android:id="@+id/notes_view"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="top"
android:layout_weight="1"
android:layout_marginBottom="10dp"/>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="0"
android:background="#FF8D8D8D"
android:gravity="center_horizontal">
<Button android:text="Save"
android:onClick="onSave"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Button android:text="Cancel"
android:onClick="onCancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</LinearLayout>
</LinearLayout>
<menu xmlns:android="http://schemas.android.com/apk/res/android" > <item android:id="@+id/add_time_menu_item"
android:title="Add" />
<item android:id="@+id/action_settings"
android:title="@string/action_settings"/>
</menu>
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.tracker"
android:versionCode="1"
android:versionName="1.0" > <uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="16" /> <application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.tracker.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>
<activity android:name="com.example.tracker.AddTimeActivity"></activity>
</application>
</manifest>Logcat提示两个Warning~~
08-04 18:25:53.727: W/ResourceType(1266): No package identifier when getting value for resource number 0x00000000
08-04 18:25:53.727: W/PackageManager(1266): Failure retrieving resources forcom.example.tracker: Resource ID #0x0
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.widget.ListView;public class MainActivity extends Activity { @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ListView listView = (ListView)findViewById(R.id.times_list);
TimeTrackerAdapter timeTrackerAdapter = new TimeTrackerAdapter();
listView.setAdapter(timeTrackerAdapter);
} @Override
public boolean onCreateOptionsMenu(Menu menu)
{
// Inflate the menu; this adds items to the action bar if it is present. MenuInflater menuInflater = getMenuInflater();
menuInflater.inflate(R.menu.main, menu);
return super.onCreateOptionsMenu(menu); }
public boolean onMenuItemSeletced(int featureId, MenuItem item)
{
if (item.getItemId() == R.id.add_time_menu_item)
{
Intent intent = new Intent(this, AddTimeActivity.class);
startActivity(intent);
}
return true;
}}package com.example.tracker;import android.app.Activity;
import android.os.Bundle;public class AddTimeActivity extends Activity { public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.add_time);
}
}
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"> <TextView android:text="Time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp" />
<EditText android:id="@+id/time_view"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"/>
<TextView android:text="Notes"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp" />
<EditText android:id="@+id/notes_view"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="top"
android:layout_weight="1"
android:layout_marginBottom="10dp"/>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="0"
android:background="#FF8D8D8D"
android:gravity="center_horizontal">
<Button android:text="Save"
android:onClick="onSave"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Button android:text="Cancel"
android:onClick="onCancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</LinearLayout>
</LinearLayout>
<menu xmlns:android="http://schemas.android.com/apk/res/android" > <item android:id="@+id/add_time_menu_item"
android:title="Add" />
<item android:id="@+id/action_settings"
android:title="@string/action_settings"/>
</menu>
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.tracker"
android:versionCode="1"
android:versionName="1.0" > <uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="16" /> <application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.tracker.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>
<activity android:name="com.example.tracker.AddTimeActivity"></activity>
</application>
</manifest>Logcat提示两个Warning~~
08-04 18:25:53.727: W/ResourceType(1266): No package identifier when getting value for resource number 0x00000000
08-04 18:25:53.727: W/PackageManager(1266): Failure retrieving resources forcom.example.tracker: Resource ID #0x0
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前面加上@Override试试.
重新override了一下,加了@override果然就可以了~~~
不过到底是因为啥呢?