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83 lines
3.3 KiB
83 lines
3.3 KiB
<#--
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Copyright 2013 The Android Open Source Project
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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Steps to implement CardStream template:
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-in template-params.xml.ftl:
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-add the following templates
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<template src="base"/>
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<template src="CardStream"/>
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-add the following line to common imports
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<common src="activities"/>
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<common src="logger"/>
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-Add a Fragment to handle behavior. In your MainActivity.java class, it will reference a Fragment
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called (yourProjectName)Fragment.java. Create that file in your project, using the "main" source
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folder instead of "common" or "templates".
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For instance, if your package name is com.example.foo, create the file
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src/main/java/com/example/foo/FooFragment.java
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-Now it's time to deal with cards. Implement a method like this in your Fragment to access the CardStream:
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private CardStreamFragment getCardStream() {
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if (mCards == null) {
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mCards = ((CardStream) getActivity()).getCardStream();
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}
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return mCards;
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}
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-Create a instance of Card.Builder with a tag String that *must* be unique among all cards.
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Card.Builder builder = new Card.Builder(UNIQUE_TAG_STRING);
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-Set the properties for your card in the builder. Some properties (title, description, progress type) can also
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be changed later.
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builder.setTitle(String title)
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-Cards can also have more than one action that is shown as a button at the bottom of the card.
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All actions *must* be defined through the builder. They can be hidden or shown later again, but they must be defined
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in the builder before .build() is called.
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-To implement an action, use Builder.addAction with a label, id, type (Neutral/Positive/Negative) and
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a CardActionCallback.
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Actions can be distinguished by their id to avoid the use of a large number of unnamed callback instances.
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For convenience, the tag of the card the action belongs to is also returned in the callback.
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builder.addAction(actionLabel1, 0, Card.ACTION_NEUTRAL, new Card.CardActionCallback() {
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@Override
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public void onClick(int cardActionId, String tag) {
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...
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}
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});
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-After finishing setup process, call Buidler.build() to return a new instance of a Card.
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final Card card = builder.build(activity);
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-Inside your MainActivity.java class, call getCardStream() to get the instance of the CardStreamFragment through
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which cards are shown on screen.
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A card needs to be added to the CardStreamFragment first before it can be shown.
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Cards are identified by their unique tag.
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Card myCard = ...
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getCardStreamFragment().addCard(myCard);
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getCardStreamFragment().show(myCard.getTag());
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getCardStreamFragment().hide("MyCardTag");
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getCardStreamFragment().show("MyCardTag",false); // can't be dismissed by user
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