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create a predictive apps provider and apply it to the all apps drawer
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123 changes: 123 additions & 0 deletions
123
app/src/main/java/com/android/launcher3/allapps/PredictiveAppsProvider.java
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| @@ -0,0 +1,123 @@ | ||
| package com.android.launcher3.allapps; | ||
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| import android.content.ComponentName; | ||
| import android.content.Context; | ||
| import android.content.SharedPreferences; | ||
| import android.preference.PreferenceManager; | ||
| import android.util.Log; | ||
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| import com.android.launcher3.compat.UserHandleCompat; | ||
| import com.android.launcher3.util.ComponentKey; | ||
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| import java.util.ArrayList; | ||
| import java.util.Collections; | ||
| import java.util.Comparator; | ||
| import java.util.HashSet; | ||
| import java.util.List; | ||
| import java.util.Set; | ||
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| public class PredictiveAppsProvider { | ||
| private static final int NUM_PREDICTIVE_APPS_TO_HOLD = 9; // since we can't have more than 9 columns | ||
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| private static final String PREDICTIVE_APPS_KEY = "predictive_apps"; | ||
| private static final String TOP_PREDICTIVE_APPS_KEY = "top_predictive_apps"; | ||
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| private SharedPreferences sharedPreferences; | ||
| private Context context; | ||
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| public PredictiveAppsProvider(Context context) { | ||
| this.context = context; | ||
| this.sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context); | ||
| } | ||
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| public void updateComponentCount(ComponentName component) { | ||
| String key = buildComponentString(component); | ||
| long current = sharedPreferences.getLong(key, 0); | ||
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| sharedPreferences.edit().putLong(key, current + 1).commit(); | ||
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| // ensure that the set of predictive apps contains this one | ||
| Set<String> predictiveApps = | ||
| sharedPreferences.getStringSet(PREDICTIVE_APPS_KEY, new HashSet<String>()); | ||
| if (!predictiveApps.contains(key)) { | ||
| predictiveApps.add(key); | ||
| sharedPreferences.edit().putStringSet(PREDICTIVE_APPS_KEY, predictiveApps).commit(); | ||
| } | ||
| } | ||
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| public void updateTopPredictedApps() { | ||
| new Thread(new Runnable() { | ||
| @Override | ||
| public void run() { | ||
| List< PredictedApp > allPredictions = new ArrayList<>(); | ||
| Set<String> predictiveAppsSet = | ||
| sharedPreferences.getStringSet(PREDICTIVE_APPS_KEY, new HashSet<String>()); | ||
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| for (String s : predictiveAppsSet) { | ||
| allPredictions.add(new PredictedApp(buildComponentFromString(s), | ||
| sharedPreferences.getLong(s, 0))); | ||
| } | ||
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| Collections.sort(allPredictions, new Comparator<PredictedApp>() { | ||
| public int compare(PredictedApp result1, PredictedApp result2) { | ||
| return Long.valueOf(result2.count).compareTo(Long.valueOf(result1.count)); | ||
| } | ||
| }); | ||
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| if (allPredictions.size() > NUM_PREDICTIVE_APPS_TO_HOLD) { | ||
| allPredictions = allPredictions.subList(0, NUM_PREDICTIVE_APPS_TO_HOLD); | ||
| } | ||
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| sharedPreferences.edit().putString(TOP_PREDICTIVE_APPS_KEY, buildStringFromAppList(allPredictions)).commit(); | ||
| } | ||
| }).start(); | ||
| } | ||
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| public List<ComponentKey> getPredictions() { | ||
| String[] topPredictions = sharedPreferences.getString(TOP_PREDICTIVE_APPS_KEY, "").split(" "); | ||
| List<ComponentKey> keys = new ArrayList<>(); | ||
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| for (int i = 0; i < topPredictions.length - 1; i++) { | ||
| keys.add(buildComponentKey(topPredictions[i] + " " + topPredictions[i + 1])); | ||
| } | ||
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| return keys; | ||
| } | ||
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| private String buildStringFromAppList(List<PredictedApp> apps) { | ||
| String string = ""; | ||
| for (PredictedApp app : apps) { | ||
| string += buildComponentString(app.component) + " "; | ||
| } | ||
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| return string.substring(0, string.length() - 1); | ||
| } | ||
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| private String buildComponentString(ComponentName component) { | ||
| return component.getPackageName() + " " + component.getClassName(); | ||
| } | ||
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| private ComponentName buildComponentFromString(String key) { | ||
| String[] arr = key.split(" "); | ||
| return new ComponentName(arr[0], arr[1]); | ||
| } | ||
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| private ComponentKey buildComponentKey(String key) { | ||
| return buildComponentKey(buildComponentFromString(key)); | ||
| } | ||
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| private ComponentKey buildComponentKey(ComponentName component) { | ||
| return new ComponentKey(component, UserHandleCompat.myUserHandle()); | ||
| } | ||
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| private class PredictedApp { | ||
| public ComponentName component; | ||
| public long count; | ||
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| public PredictedApp(ComponentName component, long count) { | ||
| this.component = component; | ||
| this.count = count; | ||
| } | ||
| } | ||
| } |