Clean up ContextThemeWrapper (04067f33) · Commits · e / os / android_frameworks_base

core/java/android/view/ContextThemeWrapper.java

+54 −26

Original line number	Diff line number	Diff line
		@@ -24,7 +24,7 @@ import android.content.res.Configuration;
		import android.content.res.Resources;

		/**
		* A ContextWrapper that allows you to modify the theme from what is in the
		* A context wrapper that allows you to modify or replace the theme of the
		* wrapped context.
		*/
		public class ContextThemeWrapper extends ContextWrapper {
		@@ -34,15 +34,42 @@ public class ContextThemeWrapper extends ContextWrapper {
		private Configuration mOverrideConfiguration;
		private Resources mResources;

		/**
		* Creates a new context wrapper with no theme and no base context.
		* <p>
		* <stong>Note:</strong> A base context <strong>must</strong> be attached
		* using {@link #attachBaseContext(Context)} before calling any other
		* method on the newly constructed context wrapper.
		*/
		public ContextThemeWrapper() {
		super(null);
		}

		/**
		* Creates a new context wrapper with the specified theme.
		* <p>
		* The specified theme will be applied on top of the base context's theme.
		* Any attributes not explicitly defined in the theme identified by
		* <var>themeResId</var> will retain their original values.
		*
		* @param base the base context
		* @param themeResId the resource ID of the theme to be applied on top of
		* the base context's theme
		*/
		public ContextThemeWrapper(Context base, @StyleRes int themeResId) {
		super(base);
		mThemeResource = themeResId;
		}

		/**
		* Creates a new context wrapper with the specified theme.
		* <p>
		* Unlike {@link #ContextThemeWrapper(Context, int)}, the theme passed to
		* this constructor will completely replace the base context's theme.
		*
		* @param base the base context
		* @param theme the theme against which resources should be inflated
		*/
		public ContextThemeWrapper(Context base, Resources.Theme theme) {
		super(base);
		mTheme = theme;
		@@ -82,19 +109,18 @@ public class ContextThemeWrapper extends ContextWrapper {

		@Override
		public Resources getResources() {
		if (mResources != null) {
		return mResources;
		}
		if (mResources == null) {
		if (mOverrideConfiguration == null) {
		mResources = super.getResources();
		return mResources;
		} else {
		Context resc = createConfigurationContext(mOverrideConfiguration);
		mResources = resc.getResources();
		return mResources;
		final Context resContext = createConfigurationContext(mOverrideConfiguration);
		mResources = resContext.getResources();
		}
		}

		return mResources;
		}

		@Override
		public void setTheme(int resid) {
		if (mThemeResource != resid) {
		@@ -109,7 +135,8 @@ public class ContextThemeWrapper extends ContextWrapper {
		return mThemeResource;
		}

		@Override public Resources.Theme getTheme() {
		@Override
		public Resources.Theme getTheme() {
		if (mTheme != null) {
		return mTheme;
		}
		@@ -121,7 +148,8 @@ public class ContextThemeWrapper extends ContextWrapper {
		return mTheme;
		}

		@Override public Object getSystemService(String name) {
		@Override
		public Object getSystemService(String name) {
		if (LAYOUT_INFLATER_SERVICE.equals(name)) {
		if (mInflater == null) {
		mInflater = LayoutInflater.from(getBaseContext()).cloneInContext(this);
		@@ -133,24 +161,24 @@ public class ContextThemeWrapper extends ContextWrapper {

		/**
		* Called by {@link #setTheme} and {@link #getTheme} to apply a theme
		* resource to the current Theme object. Can override to change the
		* resource to the current Theme object. May be overridden to change the
		* default (simple) behavior. This method will not be called in multiple
		* threads simultaneously.
		*
		* @param theme The Theme object being modified.
		* @param resid The theme style resource being applied to <var>theme</var>.
		* @param first Set to true if this is the first time a style is being
		* applied to <var>theme</var>.
		* @param theme the theme being modified
		* @param resId the style resource being applied to <var>theme</var>
		* @param first {@code true} if this is the first time a style is being
		* applied to <var>theme</var>
		*/
		protected void onApplyThemeResource(Resources.Theme theme, int resid, boolean first) {
		theme.applyStyle(resid, true);
		protected void onApplyThemeResource(Resources.Theme theme, int resId, boolean first) {
		theme.applyStyle(resId, true);
		}

		private void initializeTheme() {
		final boolean first = mTheme == null;
		if (first) {
		mTheme = getResources().newTheme();
		Resources.Theme theme = getBaseContext().getTheme();
		final Resources.Theme theme = getBaseContext().getTheme();
		if (theme != null) {
		mTheme.setTo(theme);
		}