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/*
* Copyright (C) 2013 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.example.android.supportv4.widget;
import android.app.Activity;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.widget.ContentLoadingProgressBar;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewTreeObserver;
import android.view.Window;
import com.example.android.supportv4.R;
/**
* Demonstrates how to use the ContentLoadingProgressBar. By default, the
* developer should start the ContentLoadingProgressBar with visibility of
* "gone" or "invisible". The ContentLoadingProgressBar will be shown after the
* default delay for at least a minimum time regardless of when the "hide"
* button is pressed.
*/
public class ContentLoadingProgressBarActivity extends Activity implements
OnClickListener, ViewTreeObserver.OnGlobalLayoutListener {
private Button mShowButton;
private Button mHideButton;
private ContentLoadingProgressBar mBar;
private long mShowTime;
private long mHideTime;
private TextView mShowText;
private TextView mShowTextDone;
private TextView mHideText;
private TextView mHideTextDone;
private int mLastVisibility;
private long mVisibilityChangedTime;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.content_loading_progressbar);
mBar = (ContentLoadingProgressBar)findViewById(R.id.progressbar);
mShowButton = (Button)findViewById(R.id.show);
mShowButton.setOnClickListener(this);
mHideButton = (Button)findViewById(R.id.hide);
mHideButton.setOnClickListener(this);
mShowText = (TextView)findViewById(R.id.show_text);
mShowTextDone = (TextView)findViewById(R.id.show_text_done);
mHideText = (TextView)findViewById(R.id.hide_text);
mHideTextDone = (TextView)findViewById(R.id.hide_text_done);
mLastVisibility = mBar.getVisibility();
mBar.getViewTreeObserver().addOnGlobalLayoutListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.show:
mBar.show();
mShowTime = System.currentTimeMillis();
mShowText.setText("Show clicked at " + mShowTime);
break;
case R.id.hide:
mBar.hide();
mHideTime = System.currentTimeMillis();
mHideText.setText("Hide clicked at " + mHideTime);
break;
}
}
@Override
public void onGlobalLayout() {
final int visibility = mBar.getVisibility();
if (mLastVisibility != visibility) {
if (visibility == View.VISIBLE) {
mVisibilityChangedTime = System.currentTimeMillis();
mShowTextDone.setText("Shown at "
+ (mVisibilityChangedTime - mShowTime));
} else {
mHideTextDone.setText("Hidden after "
+ (System.currentTimeMillis() - mVisibilityChangedTime));
}
mLastVisibility = mBar.getVisibility();
}
}
}
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