ce32b21727
When one app is available, the toggle works as before. When multiple apps are available, we allow the user to choose the app in a dialog before turning on the setting. Bug: 13780935 Change-Id: I1c4391bf97a53febe580fb2b896b4850372062e7
60 lines
1.9 KiB
Java
60 lines
1.9 KiB
Java
package com.android.settings;
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import android.content.Context;
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import android.os.Bundle;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.view.View;
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import android.widget.Checkable;
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/**
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* A hybrid of AppListPreference and SwitchPreference, representing a preference which can be on or
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* off but must have a selected value when turned on.
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*
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* It is invalid to show this preference when zero valid apps are present.
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*/
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public class AppListSwitchPreference extends AppListPreference {
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private static final String TAG = "AppListSwitchPref";
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private Checkable mSwitch;
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public AppListSwitchPreference(Context context, AttributeSet attrs) {
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super(context, attrs, 0, R.style.AppListSwitchPreference);
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}
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@Override
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protected void onBindView(View view) {
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super.onBindView(view);
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mSwitch = (Checkable) view.findViewById(com.android.internal.R.id.switchWidget);
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mSwitch.setChecked(getValue() != null);
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}
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@Override
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protected void showDialog(Bundle state) {
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if (getValue() != null) {
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// Turning off the current value.
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if (callChangeListener(null)) {
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setValue(null);
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}
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} else if (getEntryValues() == null || getEntryValues().length == 0) {
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Log.e(TAG, "Attempting to show dialog with zero entries: " + getKey());
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} else if (getEntryValues().length == 1) {
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// Suppress the dialog and just toggle the preference with the only choice.
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String value = getEntryValues()[0].toString();
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if (callChangeListener(value)) {
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setValue(value);
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}
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} else {
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super.showDialog(state);
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}
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}
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@Override
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public void setValue(String value) {
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super.setValue(value);
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if (mSwitch != null) {
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mSwitch.setChecked(value != null);
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}
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}
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}
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