DropDownPreference.java revision 6d26d10fb3e5e2e491d1da0881eda192d30eec04
16d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock/* 26d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock * Copyright (C) 2014 The Android Open Source Project 36d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock * 46d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock * Licensed under the Apache License, Version 2.0 (the "License"); 56d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock * you may not use this file except in compliance with the License. 66d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock * You may obtain a copy of the License at 76d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock * 86d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock * http://www.apache.org/licenses/LICENSE-2.0 96d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock * 106d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock * Unless required by applicable law or agreed to in writing, software 116d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock * distributed under the License is distributed on an "AS IS" BASIS, 126d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 136d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock * See the License for the specific language governing permissions and 146d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock * limitations under the License. 156d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock */ 166d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock 176d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlockpackage com.android.settings.notification; 186d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock 196d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlockimport android.content.Context; 206d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlockimport android.preference.Preference; 216d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlockimport android.util.AttributeSet; 226d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlockimport android.view.View; 236d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlockimport android.view.ViewGroup; 246d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlockimport android.widget.AdapterView; 256d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlockimport android.widget.ArrayAdapter; 266d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlockimport android.widget.Spinner; 276d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlockimport android.widget.AdapterView.OnItemSelectedListener; 286d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock 296d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlockpublic class DropDownPreference extends Preference { 306d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock private final Context mContext; 316d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock private final ArrayAdapter<String> mAdapter; 326d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock private final Spinner mSpinner; 336d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock 346d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock private Callback mCallback; 356d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock 366d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock public DropDownPreference(Context context) { 376d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock this(context, null); 386d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock } 396d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock 406d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock public DropDownPreference(Context context, AttributeSet attrs) { 416d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock super(context, attrs); 426d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock mContext = context; 436d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock mAdapter = new ArrayAdapter<String>(mContext, 446d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock android.R.layout.simple_spinner_dropdown_item); 456d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock 466d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock mSpinner = new Spinner(mContext); 476d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock 486d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock mSpinner.setVisibility(View.INVISIBLE); 496d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock mSpinner.setAdapter(mAdapter); 506d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock mSpinner.setOnItemSelectedListener(new OnItemSelectedListener() { 516d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock @Override 526d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock public void onItemSelected(AdapterView<?> parent, View v, int position, long id) { 536d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock setSelectedItem(position); 546d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock } 556d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock 566d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock @Override 576d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock public void onNothingSelected(AdapterView<?> parent) { 586d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock // noop 596d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock } 606d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock }); 616d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock setPersistent(false); 626d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock setOnPreferenceClickListener(new OnPreferenceClickListener() { 636d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock @Override 646d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock public boolean onPreferenceClick(Preference preference) { 656d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock mSpinner.performClick(); 666d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock return true; 676d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock } 686d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock }); 696d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock } 706d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock 716d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock public void setDropDownWidth(int dimenResId) { 726d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock mSpinner.setDropDownWidth(mContext.getResources().getDimensionPixelSize(dimenResId)); 736d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock } 746d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock 756d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock public void setCallback(Callback callback) { 766d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock mCallback = callback; 776d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock } 786d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock 796d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock public void setSelectedItem(int position) { 806d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock if (mCallback != null && !mCallback.onItemSelected(position)) { 816d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock return; 826d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock } 836d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock mSpinner.setSelection(position); 846d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock setSummary(mAdapter.getItem(position)); 856d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock final boolean disableDependents = position == 0; 866d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock notifyDependencyChange(disableDependents); 876d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock } 886d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock 896d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock public void addItem(int resId) { 906d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock mAdapter.add(mContext.getResources().getString(resId)); 916d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock } 926d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock 936d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock @Override 946d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock protected void onBindView(View view) { 956d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock super.onBindView(view); 966d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock if (view.equals(mSpinner.getParent())) return; 976d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock if (mSpinner.getParent() != null) { 986d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock ((ViewGroup)mSpinner.getParent()).removeView(mSpinner); 996d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock } 1006d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock final ViewGroup vg = (ViewGroup)view; 1016d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock vg.addView(mSpinner, 0); 1026d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock final ViewGroup.LayoutParams lp = mSpinner.getLayoutParams(); 1036d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock lp.width = 0; 1046d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock mSpinner.setLayoutParams(lp); 1056d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock } 1066d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock 1076d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock public interface Callback { 1086d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock boolean onItemSelected(int pos); 1096d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock } 1106d26d10fb3e5e2e491d1da0881eda192d30eec04John Spurlock}