/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.view;
import com.android.internal.R;
import com.android.internal.view.menu.MenuBuilder;
import android.content.Context;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Interpolator;
import android.graphics.LinearGradient;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.Point;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.Region;
import android.graphics.Shader;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.os.Parcel;
import android.os.Parcelable;
import android.os.RemoteException;
import android.os.SystemClock;
import android.os.SystemProperties;
import android.util.AttributeSet;
import android.util.Config;
import android.util.EventLog;
import android.util.Log;
import android.util.Pool;
import android.util.Poolable;
import android.util.PoolableManager;
import android.util.Pools;
import android.util.SparseArray;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityEventSource;
import android.view.accessibility.AccessibilityManager;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputConnection;
import android.view.inputmethod.InputMethodManager;
import android.widget.ScrollBarDrawable;
import java.lang.ref.SoftReference;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.WeakHashMap;
/**
* <p>
* This class represents the basic building block for user interface components. A View
* occupies a rectangular area on the screen and is responsible for drawing and
* event handling. View is the base class for <em>widgets</em>, which are
* used to create interactive UI components (buttons, text fields, etc.). The
* {@link android.view.ViewGroup} subclass is the base class for <em>layouts</em>, which
* are invisible containers that hold other Views (or other ViewGroups) and define
* their layout properties.
* </p>
*
* <div class="special">
* <p>For an introduction to using this class to develop your
* application's user interface, read the Developer Guide documentation on
* <strong><a href="{@docRoot}guide/topics/ui/index.html">User Interface</a></strong>. Special topics
* include:
* <br/><a href="{@docRoot}guide/topics/ui/declaring-layout.html">Declaring Layout</a>
* <br/><a href="{@docRoot}guide/topics/ui/menus.html">Creating Menus</a>
* <br/><a href="{@docRoot}guide/topics/ui/layout-objects.html">Common Layout Objects</a>
* <br/><a href="{@docRoot}guide/topics/ui/binding.html">Binding to Data with AdapterView</a>
* <br/><a href="{@docRoot}guide/topics/ui/ui-events.html">Handling UI Events</a>
* <br/><a href="{@docRoot}guide/topics/ui/themes.html">Applying Styles and Themes</a>
* <br/><a href="{@docRoot}guide/topics/ui/custom-components.html">Building Custom Components</a>
* <br/><a href="{@docRoot}guide/topics/ui/how-android-draws.html">How Android Draws Views</a>.
* </p>
* </div>
*
* <a name="Using"></a>
* <h3>Using Views</h3>
* <p>
* All of the views in a window are arranged in a single tree. You can add views
* either from code or by specifying a tree of views in one or more XML layout
* files. There are many specialized subclasses of views that act as controls or
* are capable of displaying text, images, or other content.
* </p>
* <p>
* Once you have created a tree of views, there are typically a few types of
* common operations you may wish to perform:
* <ul>
* <li><strong>Set properties:</strong> for example setting the text of a
* {@link android.widget.TextView}. The available properties and the methods
* that set them will vary among the different subclasses of views. Note that
* properties that are known at build time can be set in the XML layout
* files.</li>
* <li><strong>Set focus:</strong> The framework will handled moving focus in
* response to user input. To force focus to a specific view, call
* {@link #requestFocus}.</li>
* <li><strong>Set up listeners:</strong> Views allow clients to set listeners
* that will be notified when something interesting happens to the view. For
* example, all views will let you set a listener to be notified when the view
* gains or loses focus. You can register such a listener using
* {@link #setOnFocusChangeListener}. Other view subclasses offer more
* specialized listeners. For example, a Button exposes a listener to notify
* clients when the button is clicked.</li>
* <li><strong>Set visibility:</strong> You can hide or show views using
* {@link #setVisibility}.</li>
* </ul>
* </p>
* <p><em>
* Note: The Android framework is responsible for measuring, laying out and
* drawing views. You should not call methods that perform these actions on
* views yourself unless you are actually implementing a
* {@link android.view.ViewGroup}.
* </em></p>
*
* <a name="Lifecycle"></a>
* <h3>Implementing a Custom View</h3>
*
* <p>
* To implement a custom view, you will usually begin by providing overrides for
* some of the standard methods that the framework calls on all views. You do
* not need to override all of these methods. In fact, you can start by just
* overriding {@link #onDraw(android.graphics.Canvas)}.
* <table border="2" width="85%" align="center" cellpadding="5">
* <thead>
* <tr><th>Category</th> <th>Methods</th> <th>Description</th></tr>
* </thead>
*
* <tbody>
* <tr>
* <td rowspan="2">Creation</td>
* <td>Constructors</td>
* <td>There is a form of the constructor that are called when the view
* is created from code and a form that is called when the view is
* inflated from a layout file. The second form should parse and apply
* any attributes defined in the layout file.
* </td>
* </tr>
* <tr>
* <td><code>{@link #onFinishInflate()}</code></td>
* <td>Called after a view and all of its children has been inflated
* from XML.</td>
* </tr>
*
* <tr>
* <td rowspan="3">Layout</td>
* <td><code>{@link #onMeasure}</code></td>
* <td>Called to determine the size requirements for this view and all
* of its children.
* </td>
* </tr>
* <tr>
* <td><code>{@link #onLayout}</code></td>
* <td>Called when this view should assign a size and position to all
* of its children.
* </td>
* </tr>
* <tr>
* <td><code>{@link #onSizeChanged}</code></td>
* <td>Called when the size of this view has changed.
* </td>
* </tr>
*
* <tr>
* <td>Drawing</td>
* <td><code>{@link #onDraw}</code></td>
* <td>Called when the view should render its content.
* </td>
* </tr>
*
* <tr>
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android系统2.3源码(2) (2000个子文件)
View.java 340KB
WebView.java 320KB
TextView.java 298KB
ContactsContract.java 223KB
Intent.java 218KB
AbsListView.java 164KB
TextViewTest.java 164KB
ViewTest.java 158KB
Activity.java 157KB
DatagramChannelTest.java 154KB
ActivityThread.java 145KB
LaunchTest.java 142KB
Settings.java 139KB
ListView.java 138KB
ViewGroup.java 132KB
ViewRoot.java 132KB
PackageParser.java 130KB
ArraysTest.java 125KB
LifecycleTest.java 122KB
ToStream.java 122KB
ContextImpl.java 113KB
ActivityManagerNative.java 111KB
PackageManagerTests.java 109KB
ParcelTest.java 100KB
WifiStateTracker.java 100KB
AudioTrackTest.java 100KB
AudioService.java 99KB
HTMLReportGenerator.java 99KB
GLLogWrapper.java 99KB
JunitTestCases.java 98KB
TextUtilsTest.java 97KB
EncryptedPrivateKeyInfoTest.java 96KB
WebViewCore.java 96KB
Camera.java 95KB
TransformerImpl.java 95KB
VCardBuilder.java 94KB
PackageManager.java 94KB
RFC3280CertPathUtilities.java 94KB
SyncManager.java 93KB
DTMDocumentImpl.java 93KB
HTMLSchema.java 93KB
SQLiteDatabase.java 92KB
SAX2DTM2.java 92KB
DoubleTest.java 90KB
Contacts.java 89KB
BluetoothService.java 88KB
PatternTest.java 88KB
FileTest.java 87KB
EncryptedPrivateKeyInfoData.java 86KB
InputMethodService.java 86KB
Character_UnicodeBlockTest.java 85KB
ByteBufferTest.java 85KB
MathTest.java 84KB
Context.java 83KB
ViewGroupTest.java 83KB
AccountManagerService.java 82KB
ToHTMLStream.java 82KB
DOM3TreeWalker.java 81KB
SyncStorageEngine.java 81KB
AccountManager.java 81KB
Resources.java 79KB
WebViewTest.java 79KB
BatteryStats.java 78KB
FileUtils.java 77KB
URITest.java 76KB
SAX2DTM.java 76KB
IntentTest.java 76KB
SensorManager.java 74KB
LSSerializerImpl.java 74KB
DTMDefaultBase.java 74KB
LogFactory.java 74KB
CanvasTest.java 73KB
MediaStore.java 72KB
NativeCryptoTest.java 71KB
PhoneNumberUtils.java 70KB
BouncyCastleProvider.java 70KB
Parcel.java 70KB
Uri.java 69KB
DateUtils.java 69KB
MotionEvent.java 69KB
ElemNumber.java 68KB
Canvas.java 68KB
MediaPlayer.java 67KB
GLSurfaceView.java 67KB
GridView.java 67KB
GLES20.java 66KB
VCardImporterTests.java 66KB
RegionTest.java 65KB
CameraTest.java 65KB
ViewDebug.java 64KB
URLConnectionTest.java 64KB
Layout.java 64KB
Pattern2Test.java 63KB
LoadListener.java 63KB
XPathParser.java 62KB
XSLTErrorResources.java 61KB
PaintTest.java 61KB
SearchDialog.java 61KB
AutoCompleteTextView.java 61KB
IntentFilterTest.java 61KB
共 2000 条
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资源评论
- suisou2013-06-27不完整的代码 ,还是官网SVN服务器下吧
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