/*
* Copyright (C) 2007 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 android.widget.scroll;
import com.android.frameworks.coretests.R;
import android.app.Activity;
import android.os.Bundle;
import android.graphics.Rect;
import android.view.View;
import android.widget.ScrollView;
import android.widget.TextView;
/**
* A screen with some scenarios that exercise {@link ScrollView}'s implementation
* of {@link android.view.ViewGroup#requestChildRectangleOnScreen}:
* <li>Scrolling to something off screen (from top and from bottom)
* <li>Scrolling to bring something that is larger than the screen on screen
* (from top and from bottom).
*/
public class RequestRectangleVisible extends Activity {
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.scroll_to_rectangle);
final Rect rect = new Rect();
final View childToMakeVisible = findViewById(R.id.childToMakeVisible);
final TextView topBlob = (TextView) findViewById(R.id.topBlob);
final TextView bottomBlob = (TextView) findViewById(R.id.bottomBlob);
// estimate to get blobs larger than screen
int screenHeight = getWindowManager().getDefaultDisplay().getHeight();
int numLinesForScreen = screenHeight / 18;
for (int i = 0; i < numLinesForScreen; i++) {
topBlob.append(i + " another line in the blob\n");
bottomBlob.append(i + " another line in the blob\n");
}
findViewById(R.id.scrollToRectFromTop).setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
rect.set(0, 0, childToMakeVisible.getLeft(), childToMakeVisible.getHeight());
childToMakeVisible.requestRectangleOnScreen(rect, true);
}
});
findViewById(R.id.scrollToRectFromTop2).setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
rect.set(0, 0, topBlob.getWidth(), topBlob.getHeight());
topBlob.requestRectangleOnScreen(rect, true);
}
});
findViewById(R.id.scrollToRectFromBottom).setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
rect.set(0, 0, childToMakeVisible.getLeft(), childToMakeVisible.getHeight());
childToMakeVisible.requestRectangleOnScreen(rect, true);
}
});
findViewById(R.id.scrollToRectFromBottom2).setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
rect.set(0, 0, bottomBlob.getWidth(), bottomBlob.getHeight());
bottomBlob.requestRectangleOnScreen(rect, true);
}
});
}
}