Support full length rendering. (d604ad1a) · Commits · e / os / android_frameworks_base

tools/layoutlib/api/src/com/android/layoutlib/api/ILayoutBridge.java

+53 −9

Original line number	Diff line number	Diff line
		@@ -24,21 +24,26 @@ import java.util.Map;
		* <p/>
		* <p/>{@link #getApiLevel()} gives the ability to know which methods are available.
		* <p/>
		* Changes in API level 4:
		* <ul>
		* <li>new render method: {@link #computeLayout(IXmlPullParser, Object, int, int, boolean, int, float, float, String, boolean, Map, Map, IProjectCallback, ILayoutLog)}</li>
		* <li>deprecated {@link #computeLayout(IXmlPullParser, Object, int, int, int, float, float, String, boolean, Map, Map, IProjectCallback, ILayoutLog)}</li>
		* </ul>
		* Changes in API level 3:
		* <ul>
		* <li>{@link #computeLayout(IXmlPullParser, Object, int, int, int, float, float, String, boolean, Map, Map, IProjectCallback, ILayoutLog)}</li>
		* <li>new render method: {@link #computeLayout(IXmlPullParser, Object, int, int, int, float, float, String, boolean, Map, Map, IProjectCallback, ILayoutLog)}</li>
		* <li>deprecated {@link #computeLayout(IXmlPullParser, Object, int, int, String, boolean, Map, Map, IProjectCallback, ILayoutLog)}</li>
		* </ul>
		* Changes in API level 2:
		* <ul>
		* <li>{@link #getApiLevel()}</li>
		* <li>{@link #computeLayout(IXmlPullParser, Object, int, int, String, boolean, Map, Map, IProjectCallback, ILayoutLog)}</li>
		* <li>new API Level method: {@link #getApiLevel()}</li>
		* <li>new render method: {@link #computeLayout(IXmlPullParser, Object, int, int, String, boolean, Map, Map, IProjectCallback, ILayoutLog)}</li>
		* <li>deprecated {@link #computeLayout(IXmlPullParser, Object, int, int, String, Map, Map, IProjectCallback, ILayoutLog)}</li>
		* </ul>
		*/
		public interface ILayoutBridge {

		final int API_CURRENT = 3;
		final int API_CURRENT = 4;

		/**
		* Returns the API level of the layout library.
		@@ -58,6 +63,44 @@ public interface ILayoutBridge {
		*/
		boolean init(String fontOsLocation, Map<String, Map<String, Integer>> enumValueMap);

		/**
		* Computes and renders a layout
		* @param layoutDescription the {@link IXmlPullParser} letting the LayoutLib Bridge visit the
		* layout file.
		* @param projectKey An Object identifying the project. This is used for the cache mechanism.
		* @param screenWidth the screen width
		* @param screenHeight the screen height
		* @param renderFullHeight if true, the rendering will render the full height needed by the
		* layout. If the layout needs less than <var>screenHeight</var> then the rendering will
		* use <var>screenHeight</var> as the height.
		* @param density the density factor for the screen.
		* @param xdpi the screen actual dpi in X
		* @param ydpi the screen actual dpi in Y
		* @param themeName The name of the theme to use.
		* @param isProjectTheme true if the theme is a project theme, false if it is a framework theme.
		* @param projectResources the resources of the project. The map contains (String, map) pairs
		* where the string is the type of the resource reference used in the layout file, and the
		* map contains (String, {@link IResourceValue}) pairs where the key is the resource name,
		* and the value is the resource value.
		* @param frameworkResources the framework resources. The map contains (String, map) pairs
		* where the string is the type of the resource reference used in the layout file, and the map
		* contains (String, {@link IResourceValue}) pairs where the key is the resource name, and the
		* value is the resource value.
		* @param projectCallback The {@link IProjectCallback} object to get information from
		* the project.
		* @param logger the object responsible for displaying warning/errors to the user.
		* @return an {@link ILayoutResult} object that contains the result of the layout.
		* @since 4
		*/
		ILayoutResult computeLayout(IXmlPullParser layoutDescription,
		Object projectKey,
		int screenWidth, int screenHeight, boolean renderFullHeight,
		int density, float xdpi, float ydpi,
		String themeName, boolean isProjectTheme,
		Map<String, Map<String, IResourceValue>> projectResources,
		Map<String, Map<String, IResourceValue>> frameworkResources,
		IProjectCallback projectCallback, ILayoutLog logger);

		/**
		* Computes and renders a layout
		* @param layoutDescription the {@link IXmlPullParser} letting the LayoutLib Bridge visit the
		@@ -84,6 +127,7 @@ public interface ILayoutBridge {
		* @return an {@link ILayoutResult} object that contains the result of the layout.
		* @since 3
		*/
		@Deprecated
		ILayoutResult computeLayout(IXmlPullParser layoutDescription,
		Object projectKey,
		int screenWidth, int screenHeight, int density, float xdpi, float ydpi,

tools/layoutlib/bridge/src/com/android/layoutlib/bridge/Bridge.java

+41 −5

Original line number	Diff line number	Diff line
		@@ -312,6 +312,7 @@ public final class Bridge implements ILayoutBridge {
		}

		/*
		* For compatilibty purposes, we implement the old deprecated version of computeLayout.
		* (non-Javadoc)
		* @see com.android.layoutlib.api.ILayoutBridge#computeLayout(com.android.layoutlib.api.IXmlPullParser, java.lang.Object, int, int, int, float, float, java.lang.String, boolean, java.util.Map, java.util.Map, com.android.layoutlib.api.IProjectCallback, com.android.layoutlib.api.ILayoutLog)
		*/
		@@ -321,6 +322,23 @@ public final class Bridge implements ILayoutBridge {
		Map<String, Map<String, IResourceValue>> projectResources,
		Map<String, Map<String, IResourceValue>> frameworkResources,
		IProjectCallback customViewLoader, ILayoutLog logger) {
		return computeLayout(layoutDescription, projectKey,
		screenWidth, screenHeight, false /* renderFullHeight */,
		density, xdpi, ydpi, themeName, isProjectTheme,
		projectResources, frameworkResources, customViewLoader, logger);
		}

		/*
		* (non-Javadoc)
		* @see com.android.layoutlib.api.ILayoutBridge#computeLayout(com.android.layoutlib.api.IXmlPullParser, java.lang.Object, int, int, boolean, int, float, float, java.lang.String, boolean, java.util.Map, java.util.Map, com.android.layoutlib.api.IProjectCallback, com.android.layoutlib.api.ILayoutLog)
		*/
		public ILayoutResult computeLayout(IXmlPullParser layoutDescription, Object projectKey,
		int screenWidth, int screenHeight, boolean renderFullHeight,
		int density, float xdpi, float ydpi,
		String themeName, boolean isProjectTheme,
		Map<String, Map<String, IResourceValue>> projectResources,
		Map<String, Map<String, IResourceValue>> frameworkResources,
		IProjectCallback customViewLoader, ILayoutLog logger) {
		if (logger == null) {
		logger = sDefaultLogger;
		}
		@@ -393,15 +411,33 @@ public final class Bridge implements ILayoutBridge {
		root.setBackgroundDrawable(d);
		}

		// measure the views
		int w_spec = MeasureSpec.makeMeasureSpec(screenWidth, MeasureSpec.EXACTLY);
		int h_spec = MeasureSpec.makeMeasureSpec(screenHeight - screenOffset,
		MeasureSpec.EXACTLY);
		int h_spec;

		// measure the views
		if (renderFullHeight) {
		// measure the full height needed by the layout.
		h_spec = MeasureSpec.makeMeasureSpec(screenHeight - screenOffset,
		MeasureSpec.UNSPECIFIED); // this lets us know the actual needed size
		view.measure(w_spec, h_spec);

		int neededHeight = root.getChildAt(0).getMeasuredHeight();

		if (neededHeight > screenHeight - screenOffset) {
		screenHeight = neededHeight + screenOffset;
		}
		}

		// remeasure with only the size we need
		// This must always be done before the call to layout
		h_spec = MeasureSpec.makeMeasureSpec(screenHeight - screenOffset,
		MeasureSpec.EXACTLY);
		view.measure(w_spec, h_spec);

		// now do the layout.
		view.layout(0, screenOffset, screenWidth, screenHeight);

		// draw them
		// draw the views
		Canvas canvas = new Canvas(screenWidth, screenHeight - screenOffset, logger);

		root.draw(canvas);