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/*
* Copyright (C) 2018 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.widget;
import android.content.Context;
import android.preference.Preference;
import android.text.method.LinkMovementMethod;
import android.util.AttributeSet;
import android.view.View;
import android.widget.TextView;
/**
* Provides a {@link TextView} inside a preference. Useful for displaying static text which may
* contain hyperlinks.
*/
public class TextViewPreference extends Preference {
/**
* The resource ID of the text to be populated in the {@link TextView} when a resource ID is used.
*/
private int textResourceId = 0;
/** The text to be populated in the {@link TextView} when a {@link CharSequence} is used. */
private CharSequence text;
/** The {@link TextView} containing the text. */
private TextView textView;
/**
* Instantiates the {@link TextViewPreference} instance.
*
* @param context The Context this is associated with, through which it can access the current
* theme, resources, etc.
* @param attrs The attributes of the XML tag that is inflating the preference.
* @param defStyleAttr An attribute in the current theme that contains a reference to a style
* resource that supplies default values for the view. Can be 0 to not look for defaults.
* @param defStyleRes A resource identifier of a style resource that supplies default values for
* the view, used only if defStyleAttr is 0 or can not be found in the theme. Can be 0 to not
* look for defaults.
*/
public TextViewPreference(
Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
setLayoutResource(R.layout.text_view_preference);
}
/**
* Instantiates the {@link TextViewPreference} instance.
*
* @param context The Context this is associated with, through which it can access the current
* theme, resources, etc.
* @param attrs The attributes of the XML tag that is inflating the preference.
* @param defStyleAttr An attribute in the current theme that contains a reference to a style
* resource that supplies default values for the view. Can be 0 to not look for defaults.
*/
public TextViewPreference(Context context, AttributeSet attrs, int defStyleAttr) {
this(context, attrs, defStyleAttr, 0);
}
/**
* Instantiates the {@link TextViewPreference} instance.
*
* @param context The Context this is associated with, through which it can access the current
* theme, resources, etc.
* @param attrs The attributes of the XML tag that is inflating the preference.
*/
public TextViewPreference(Context context, AttributeSet attrs) {
this(context, attrs, android.R.attr.preferenceStyle, 0);
}
/**
* Instantiates the {@link TextViewPreference} instance.
*
* @param context The Context this is associated with, through which it can access the current
* theme, resources, etc.
*/
public TextViewPreference(Context context) {
super(context, null);
setLayoutResource(R.layout.text_view_preference);
}
/**
* Handles binding the preference.
*
* @param view The view.
*/
@Override
protected void onBindView(View view) {
super.onBindView(view);
textView = (TextView) view.findViewById(R.id.text);
if (textResourceId != 0) {
setTitle(textResourceId);
} else if (text != null) {
setTitle(text);
} else if (getTitleRes() != 0) {
setTitle(getTitleRes());
}
}
/**
* Sets the preference title from a {@link CharSequence}.
*
* @param text The text.
*/
@Override
public void setTitle(CharSequence text) {
textResourceId = 0;
this.text = text;
if (textView == null) {
return;
}
textView.setMovementMethod(LinkMovementMethod.getInstance());
textView.setText(text);
}
/**
* Sets the preference title from a resource id.
*
* @param textResId The string resource Id.
*/
@Override
public void setTitle(int textResId) {
textResourceId = textResId;
setTitle(getContext().getString(textResId));
}
}
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