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+/*
+ * Copyright (C) 2015 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 com.android.setupwizardlib;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.graphics.Shader.TileMode;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.Drawable;
+import android.graphics.drawable.LayerDrawable;
+import android.os.Build.VERSION;
+import android.os.Build.VERSION_CODES;
+import android.util.AttributeSet;
+import android.view.Gravity;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.FrameLayout;
+import android.widget.TextView;
+
+import com.android.setupwizardlib.view.Illustration;
+
+public class SetupWizardLayout extends FrameLayout {
+
+ private static final String TAG = "SetupWizardLayout";
+
+ /**
+ * The container of the actual content. This will be a view in the template, which child views
+ * will be added to when {@link #addView(android.view.View)} is called. This will be the layout
+ * in the template that has the ID of {@link #getContainerId()}. For the default implementation
+ * of SetupWizardLayout, that would be @id/suw_layout_content.
+ */
+ private ViewGroup mContainer;
+
+ public SetupWizardLayout(Context context) {
+ this(context, 0);
+ }
+
+ public SetupWizardLayout(Context context, int template) {
+ this(context, template, null, 0);
+ }
+
+ public SetupWizardLayout(Context context, AttributeSet attrs) {
+ this(context, attrs, R.attr.suwLayoutTheme);
+ }
+
+ public SetupWizardLayout(Context context, AttributeSet attrs, int defStyleAttr) {
+ this(context, 0, attrs, defStyleAttr);
+ }
+
+ public SetupWizardLayout(Context context, int template, AttributeSet attrs, int defStyleAttr) {
+ super(context, attrs, defStyleAttr);
+ final TypedArray a = context.obtainStyledAttributes(attrs,
+ R.styleable.SuwSetupWizardLayout, defStyleAttr, 0);
+ if (template == 0) {
+ template = a.getResourceId(R.styleable.SuwSetupWizardLayout_android_layout, 0);
+ }
+ inflateTemplate(template);
+
+ // Set the background from XML, either directly or built from a bitmap tile
+ final Drawable background =
+ a.getDrawable(R.styleable.SuwSetupWizardLayout_suwBackground);
+ if (background != null) {
+ setLayoutBackground(background);
+ } else {
+ final Drawable backgroundTile =
+ a.getDrawable(R.styleable.SuwSetupWizardLayout_suwBackgroundTile);
+ if (backgroundTile != null) {
+ setBackgroundTile(backgroundTile);
+ }
+ }
+
+ // Set the illustration from XML, either directly or built from image + horizontal tile
+ final Drawable illustration =
+ a.getDrawable(R.styleable.SuwSetupWizardLayout_suwIllustration);
+ if (illustration != null) {
+ setIllustration(illustration);
+ } else {
+ final Drawable illustrationImage =
+ a.getDrawable(R.styleable.SuwSetupWizardLayout_suwIllustrationImage);
+ final Drawable horizontalTile = a.getDrawable(
+ R.styleable.SuwSetupWizardLayout_suwIllustrationHorizontalTile);
+ if (illustrationImage != null && horizontalTile != null) {
+ setIllustration(illustrationImage, horizontalTile);
+ }
+ }
+
+ // Set the header text
+ final CharSequence headerText =
+ a.getText(R.styleable.SuwSetupWizardLayout_suwHeaderText);
+ if (headerText != null) {
+ setHeaderText(headerText);
+ }
+
+ a.recycle();
+ }
+
+ @Override
+ public void addView(View child, int index, ViewGroup.LayoutParams params) {
+ mContainer.addView(child, index, params);
+ }
+
+ private void addViewInternal(View child) {
+ super.addView(child, -1, generateDefaultLayoutParams());
+ }
+
+ private void inflateTemplate(int templateResource) {
+ final LayoutInflater inflater = LayoutInflater.from(getContext());
+ final View templateRoot = onInflateTemplate(inflater, templateResource);
+ addViewInternal(templateRoot);
+
+ mContainer = (ViewGroup) findViewById(getContainerId());
+ onTemplateInflated();
+ }
+
+ /**
+ * This method inflates the template. Subclasses can override this method to customize the
+ * template inflation, or change to a different default template. The root of the inflated
+ * layout should be returned, and not added to the view hierarchy.
+ *
+ * @param inflater A LayoutInflater to inflate the template.
+ * @param template The resource ID of the template to be inflated, or 0 if no template is
+ * specified.
+ * @return Root of the inflated layout.
+ */
+ protected View onInflateTemplate(LayoutInflater inflater, int template) {
+ if (template == 0) {
+ template = R.layout.suw_template;
+ }
+ return inflater.inflate(template, this, false);
+ }
+
+ /**
+ * This is called after the template has been inflated and added to the view hierarchy.
+ * Subclasses can implement this method to modify the template as necessary, such as caching
+ * views retrieved from findViewById, or other view operations that need to be done in code.
+ * You can think of this as {@link android.view.View#onFinishInflate()} but for inflation of the
+ * template instead of for child views.
+ */
+ protected void onTemplateInflated() {
+ }
+
+ protected int getContainerId() {
+ return R.id.suw_layout_content;
+ }
+
+ public void setHeaderText(int title) {
+ final TextView titleView = (TextView) findViewById(R.id.suw_layout_title);
+ if (titleView != null) {
+ titleView.setText(title);
+ }
+ }
+
+ public void setHeaderText(CharSequence title) {
+ final TextView titleView = (TextView) findViewById(R.id.suw_layout_title);
+ if (titleView != null) {
+ titleView.setText(title);
+ }
+ }
+
+ /**
+ * Set the illustration of the layout. The drawable will be applied as is, and the bounds will
+ * be set as implemented in {@link com.android.setupwizardlib.view.Illustration}. To create
+ * a suitable drawable from an asset and a horizontal repeating tile, use
+ * {@link #setIllustration(int, int)} instead.
+ *
+ * @param drawable The drawable specifying the illustration.
+ */
+ public void setIllustration(Drawable drawable) {
+ final View view = findViewById(R.id.suw_layout_decor);
+ if (view instanceof Illustration) {
+ final Illustration illustration = (Illustration) view;
+ illustration.setIllustration(drawable);
+ }
+ }
+
+ /**
+ * Set the illustration of the layout, which will be created asset and the horizontal tile as
+ * suitable. On phone layouts (not sw600dp), the asset will be scaled, maintaining aspect ratio.
+ * On tablets (sw600dp), the assets will always have 256dp height and the rest of the
+ * illustration area that the asset doesn't fill will be covered by the horizontalTile.
+ *
+ * @param asset Resource ID of the illustration asset.
+ * @param horizontalTile Resource ID of the horizontally repeating tile for tablet layout.
+ */
+ public void setIllustration(int asset, int horizontalTile) {
+ final View view = findViewById(R.id.suw_layout_decor);
+ if (view instanceof Illustration) {
+ final Illustration illustration = (Illustration) view;
+ final Drawable illustrationDrawable = getIllustration(asset, horizontalTile);
+ illustration.setIllustration(illustrationDrawable);
+ }
+ }
+
+ private void setIllustration(Drawable asset, Drawable horizontalTile) {
+ final View view = findViewById(R.id.suw_layout_decor);
+ if (view instanceof Illustration) {
+ final Illustration illustration = (Illustration) view;
+ final Drawable illustrationDrawable = getIllustration(asset, horizontalTile);
+ illustration.setIllustration(illustrationDrawable);
+ }
+ }
+
+ /**
+ * Set the background of the layout, which is expected to be able to extend infinitely. If it is
+ * a bitmap tile and you want it to repeat, use {@link #setBackgroundTile(int)} instead.
+ */
+ public void setLayoutBackground(Drawable background) {
+ final View view = findViewById(R.id.suw_layout_decor);
+ if (view != null) {
+ //noinspection deprecation
+ view.setBackgroundDrawable(background);
+ }
+ }
+
+ /**
+ * Set the background of the layout to a repeating bitmap tile. To use a different kind of
+ * drawable, use {@link #setLayoutBackground(android.graphics.drawable.Drawable)} instead.
+ */
+ public void setBackgroundTile(int backgroundTile) {
+ final Drawable backgroundTileDrawable =
+ getContext().getResources().getDrawable(backgroundTile);
+ setBackgroundTile(backgroundTileDrawable);
+ }
+
+ private void setBackgroundTile(Drawable backgroundTile) {
+ if (backgroundTile instanceof BitmapDrawable) {
+ ((BitmapDrawable) backgroundTile).setTileModeXY(TileMode.REPEAT, TileMode.REPEAT);
+ }
+ setLayoutBackground(backgroundTile);
+ }
+
+ private Drawable getIllustration(int asset, int horizontalTile) {
+ final Context context = getContext();
+ final Drawable assetDrawable = context.getResources().getDrawable(asset);
+ final Drawable tile = context.getResources().getDrawable(horizontalTile);
+ return getIllustration(assetDrawable, tile);
+ }
+
+ @SuppressLint("RtlHardcoded")
+ private Drawable getIllustration(Drawable asset, Drawable horizontalTile) {
+ final Context context = getContext();
+ if (context.getResources().getBoolean(R.bool.suwUseTabletLayout)) {
+ // If it is a "tablet" (sw600dp), create a LayerDrawable with the horizontal tile.
+ if (horizontalTile instanceof BitmapDrawable) {
+ ((BitmapDrawable) horizontalTile).setTileModeX(TileMode.REPEAT);
+ ((BitmapDrawable) horizontalTile).setGravity(Gravity.TOP);
+ }
+ if (asset instanceof BitmapDrawable) {
+ // Always specify TOP | LEFT, Illustration will flip the entire LayerDrawable.
+ ((BitmapDrawable) asset).setGravity(Gravity.TOP | Gravity.LEFT);
+ }
+ final LayerDrawable layers =
+ new LayerDrawable(new Drawable[] { horizontalTile, asset });
+ if (VERSION.SDK_INT >= VERSION_CODES.KITKAT) {
+ layers.setAutoMirrored(true);
+ }
+ return layers;
+ } else {
+ // If it is a "phone" (not sw600dp), simply return the illustration
+ if (VERSION.SDK_INT >= VERSION_CODES.KITKAT) {
+ asset.setAutoMirrored(true);
+ }
+ return asset;
+ }
+ }
+}