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/*
* Copyright (C) 2017 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.dialer.about;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.MenuItem;
import android.widget.ScrollView;
import android.widget.TextView;
/** Simple Activity that renders locally stored open source legal info in a text view. */
public final class LicenseActivity extends ActionBarActivity {
private static final String TAG = "LicenseActivity";
private static final String STATE_SCROLL_POS = "scroll_pos";
@Override
public void onCreate(Bundle bundle) {
super.onCreate(bundle);
setContentView(R.layout.license_scrollview);
License license = getIntent().getParcelableExtra(LicenseMenuActivity.ARGS_LICENSE);
getSupportActionBar().setTitle(license.getLibraryName());
// Show 'up' button with no logo.
getSupportActionBar().setDisplayShowHomeEnabled(true);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setLogo(null);
TextView textView = (TextView) findViewById(R.id.license_activity_textview);
String licenseText = Licenses.getLicenseText(this, license);
if (licenseText == null) {
finish();
return;
}
textView.setText(licenseText);
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
ScrollView scrollView = (ScrollView) findViewById(R.id.license_activity_scrollview);
TextView textView = (TextView) findViewById(R.id.license_activity_textview);
int firstVisibleLine = textView.getLayout().getLineForVertical(scrollView.getScrollY());
int firstVisibleChar = textView.getLayout().getLineStart(firstVisibleLine);
outState.putInt(STATE_SCROLL_POS, firstVisibleChar);
}
@Override
public void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
final ScrollView scrollView = (ScrollView) findViewById(R.id.license_activity_scrollview);
final int firstVisibleChar = savedInstanceState.getInt(STATE_SCROLL_POS);
scrollView.post(
new Runnable() {
@Override
public void run() {
TextView textView = (TextView) findViewById(R.id.license_activity_textview);
int firstVisibleLine = textView.getLayout().getLineForOffset(firstVisibleChar);
int offset = textView.getLayout().getLineTop(firstVisibleLine);
scrollView.scrollTo(0, offset);
}
});
}
@Override
public boolean onOptionsItemSelected(final MenuItem item) {
if (item.getItemId() == android.R.id.home) {
finish();
return true;
}
return super.onOptionsItemSelected(item);
}
}
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