Files
EhViewer/app/src/main/java/com/hippo/scene/Scene.java
T
2015-01-27 20:10:48 +08:00

110 lines
2.6 KiB
Java

/*
* Copyright (C) 2014-2015 Hippo Seven
*
* 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
* 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.hippo.scene;
import android.view.View;
import android.widget.FrameLayout;
import com.hippo.util.AssertUtils;
/**
* {@link com.hippo.scene.Scene} is a {@code Activity} of {@link android.app.Activity}.
* <p>
* When start a new {@code Scene}, previous {@code Scene} can stay at screen for
* a while. Or retain for a while before destroy.
*/
public abstract class Scene {
private StageActivity mStageActivity;
private FrameLayout mStageView;
private View mRootView;
void setStageActivity(StageActivity stageActivity) {
mStageActivity = stageActivity;
mStageView = stageActivity.getStageView();
}
public void setContentView(int layoutResID) {
mRootView = mStageActivity.getLayoutInflater()
.inflate(layoutResID, mStageView, false);
}
public void setContentView(View view) {
mRootView = view;
}
public View findViewById(int id) {
AssertUtils.assertNotNull("Call setContentView before findViewById",
mRootView);
return mRootView.findViewById(id);
}
View getRootView() {
return mRootView;
}
public void startScene(Class sceneClass) {
mStageActivity.startScene(this, sceneClass);
}
public final void finish() {
mStageActivity.finishScene(this);
}
void create() {
onCreate();
AssertUtils.assertNotNull("You have to call setContentView in onCreate",
mRootView);
mStageActivity.addSceneView(this);
}
void resume() {
onResume();
mStageActivity.addSceneView(this);
}
void pause() {
onPause();
}
void destroy() {
onDestroy();
}
/**
* You have to call setContentView in it.
*/
public abstract void onCreate();
public abstract void onResume();
public abstract void onPause();
public abstract void onDestroy();
/**
* This method should be called to remove when it need to remove
*/
public final void dispatchRemove() {
mStageActivity.stopSceneRetain(this);
}
}