a8b2a5072c
ActivityManagerService now holds a ContentObserver for Settings.System.FONT_SCALE, so it is no longer necessary to notify ActivityManagerNative of a configuration update involving the font scale directly. Bug:23033258 Change-Id: Ifd002bd25724b133e83a1285be2953019178c65a
132 lines
4.6 KiB
Java
132 lines
4.6 KiB
Java
/*
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* Copyright (C) 2006 The Android Open Source Project
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*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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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package com.android.settings;
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import android.app.Activity;
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import android.content.ContentResolver;
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import android.content.res.Resources;
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import android.content.res.TypedArray;
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import android.os.Bundle;
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import android.provider.Settings;
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import android.util.DisplayMetrics;
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import android.util.TypedValue;
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import android.view.View;
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import android.widget.ArrayAdapter;
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import android.widget.Button;
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import android.widget.Spinner;
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import android.widget.TextView;
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public class Display extends Activity implements View.OnClickListener {
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@Override
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public void onCreate(Bundle icicle) {
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super.onCreate(icicle);
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setContentView(R.layout.display);
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mFontSize = (Spinner) findViewById(R.id.fontSize);
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mFontSize.setOnItemSelectedListener(mFontSizeChanged);
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String[] states = new String[3];
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Resources r = getResources();
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states[0] = r.getString(R.string.small_font);
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states[1] = r.getString(R.string.medium_font);
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states[2] = r.getString(R.string.large_font);
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ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
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android.R.layout.simple_spinner_item, states);
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adapter.setDropDownViewResource(
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android.R.layout.simple_spinner_dropdown_item);
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mFontSize.setAdapter(adapter);
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mPreview = (TextView) findViewById(R.id.preview);
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mPreview.setText(r.getText(R.string.font_size_preview_text));
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Button save = (Button) findViewById(R.id.save);
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save.setText(r.getText(R.string.font_size_save));
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save.setOnClickListener(this);
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mTextSizeTyped = new TypedValue();
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TypedArray styledAttributes =
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obtainStyledAttributes(android.R.styleable.TextView);
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styledAttributes.getValue(android.R.styleable.TextView_textSize,
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mTextSizeTyped);
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DisplayMetrics metrics = getResources().getDisplayMetrics();
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mDisplayMetrics = new DisplayMetrics();
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mDisplayMetrics.density = metrics.density;
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mDisplayMetrics.heightPixels = metrics.heightPixels;
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mDisplayMetrics.scaledDensity = metrics.scaledDensity;
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mDisplayMetrics.widthPixels = metrics.widthPixels;
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mDisplayMetrics.xdpi = metrics.xdpi;
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mDisplayMetrics.ydpi = metrics.ydpi;
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styledAttributes.recycle();
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}
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@Override
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public void onResume() {
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super.onResume();
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final ContentResolver resolver = getContentResolver();
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mFontScale = Settings.System.getFloat(resolver, Settings.System.FONT_SCALE, 1.0f);
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if (mFontScale < 1) {
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mFontSize.setSelection(0);
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} else if (mFontScale > 1) {
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mFontSize.setSelection(2);
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} else {
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mFontSize.setSelection(1);
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}
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updateFontScale();
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}
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private void updateFontScale() {
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mDisplayMetrics.scaledDensity = mDisplayMetrics.density * mFontScale;
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float size = mTextSizeTyped.getDimension(mDisplayMetrics);
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mPreview.setTextSize(TypedValue.COMPLEX_UNIT_PX, size);
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}
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public void onClick(View v) {
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final ContentResolver resolver = getContentResolver();
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Settings.System.putFloat(resolver, Settings.System.FONT_SCALE, mFontScale);
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finish();
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}
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private Spinner.OnItemSelectedListener mFontSizeChanged
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= new Spinner.OnItemSelectedListener() {
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public void onItemSelected(android.widget.AdapterView av, View v,
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int position, long id) {
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if (position == 0) {
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mFontScale = .75f;
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} else if (position == 2) {
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mFontScale = 1.25f;
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} else {
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mFontScale = 1.0f;
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}
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updateFontScale();
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}
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public void onNothingSelected(android.widget.AdapterView av) {
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}
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};
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private Spinner mFontSize;
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private TextView mPreview;
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private TypedValue mTextSizeTyped;
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private DisplayMetrics mDisplayMetrics;
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private float mFontScale = 1.0f;
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}
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