diff options
Diffstat (limited to 'library/main/src/com/android/setupwizardlib/SetupWizardLayout.java')
-rw-r--r-- | library/main/src/com/android/setupwizardlib/SetupWizardLayout.java | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/library/main/src/com/android/setupwizardlib/SetupWizardLayout.java b/library/main/src/com/android/setupwizardlib/SetupWizardLayout.java new file mode 100644 index 0000000..2a1000d --- /dev/null +++ b/library/main/src/com/android/setupwizardlib/SetupWizardLayout.java @@ -0,0 +1,282 @@ +/* + * 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; + } + } +} |