Added APIs for App Usage Limits.

Added a new AppUsageLimit group observer which follows the same pattern as
other UsageGroups. This specific observer allows the launcher to query
for the AppUsageLimit, available via the new LauncherApps API below. The
observer can be registered and unregistered via the respective new APIs in
UsageStats.

LauncherApps has a new API which allows it to get the AppUsageLimit for
a specified package and user, initally set via the API in UsageStats.
This new API allows the launcher to query specifics about the limit such
as how much usage time the limit has, and how much total usage time is
remaining.

Bug: 117409586
Test: atest FrameworksServicesTests:AppTimeLimitControllerTests
Test: atest android.app.usage.cts.UsageStatsTest#testObserveUsagePermissionForRegisterObserver
Test: atest android.app.usage.cts.UsageStatsTest#testObserveUsagePermissionForUnregisterObserver
Test: manual (mmma frameworks/base/tests/UsageStatsTest/)
Change-Id: Ifaffab629409e9191e40404a949c8df70bd3f7cb

1 files changed, 56 insertions, 0 deletions

diff --git a/tests/UsageStatsTest/src/com/android/tests/usagestats/UsageStatsActivity.java b/tests/UsageStatsTest/src/com/android/tests/usagestats/UsageStatsActivity.java
index 3c628f6e0013..0105893adf9e 100644
--- a/tests/UsageStatsTest/src/com/android/tests/usagestats/UsageStatsActivity.java
+++ b/tests/UsageStatsTest/src/com/android/tests/usagestats/UsageStatsActivity.java
@@ -21,6 +21,8 @@ import android.app.ListActivity;
 import android.app.PendingIntent;
 import android.app.usage.UsageStats;
 import android.app.usage.UsageStatsManager;
+import android.content.ClipData;
+import android.content.ClipboardManager;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
@@ -49,6 +51,8 @@ public class UsageStatsActivity extends ListActivity {
     private static final long USAGE_STATS_PERIOD = 1000 * 60 * 60 * 24 * 14;
     private static final String EXTRA_KEY_TIMEOUT = "com.android.tests.usagestats.extra.TIMEOUT";
     private UsageStatsManager mUsageStatsManager;
+    private ClipboardManager mClipboard;
+    private ClipData mClip;
     private Adapter mAdapter;
     private Comparator<UsageStats> mComparator = new Comparator<UsageStats>() {
         @Override
@@ -61,6 +65,7 @@ public class UsageStatsActivity extends ListActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         mUsageStatsManager = (UsageStatsManager) getSystemService(Context.USAGE_STATS_SERVICE);
+        mClipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
         mAdapter = new Adapter();
         setListAdapter(mAdapter);
         Bundle extras = getIntent().getExtras();
@@ -98,6 +103,8 @@ public class UsageStatsActivity extends ListActivity {
             case R.id.set_app_limit:
                 callSetAppLimit();
                 return true;
+            case R.id.set_app_usage_limit:
+                callSetAppUsageLimit();
             default:
                 return super.onOptionsItemSelected(item);
         }
@@ -170,6 +177,40 @@ public class UsageStatsActivity extends ListActivity {
         builder.show();
     }
 
+    private void callSetAppUsageLimit() {
+        final AlertDialog.Builder builder = new AlertDialog.Builder(this);
+        builder.setTitle("Enter package name");
+        final EditText input = new EditText(this);
+        input.setInputType(InputType.TYPE_CLASS_TEXT);
+        input.setHint("com.android.tests.usagestats");
+        builder.setView(input);
+
+        builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialog, int which) {
+                final String packageName = input.getText().toString().trim();
+                if (!TextUtils.isEmpty(packageName)) {
+                    String[] packages = packageName.split(",");
+                    Intent intent = new Intent(Intent.ACTION_MAIN);
+                    intent.setClass(UsageStatsActivity.this, UsageStatsActivity.class);
+                    intent.setPackage(getPackageName());
+                    intent.putExtra(EXTRA_KEY_TIMEOUT, true);
+                    mUsageStatsManager.registerAppUsageLimitObserver(1, packages,
+                            60, TimeUnit.SECONDS, PendingIntent.getActivity(UsageStatsActivity.this,
+                                    1, intent, 0));
+                }
+            }
+        });
+        builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialog, int which) {
+                dialog.cancel();
+            }
+        });
+
+        builder.show();
+    }
+
     private void showInactive(String packageName) {
         final AlertDialog.Builder builder = new AlertDialog.Builder(this);
         builder.setMessage(
@@ -232,6 +273,21 @@ public class UsageStatsActivity extends ListActivity {
             holder.packageName.setText(mStats.get(position).getPackageName());
             holder.usageTime.setText(DateUtils.formatDuration(
                     mStats.get(position).getTotalTimeInForeground()));
+
+            //copy package name to the clipboard for convenience
+            holder.packageName.setOnLongClickListener(new View.OnLongClickListener() {
+                @Override
+                public boolean onLongClick(View v) {
+                    String text = holder.packageName.getText().toString();
+                    mClip = ClipData.newPlainText("package_name", text);
+                    mClipboard.setPrimaryClip(mClip);
+
+                    Toast.makeText(getApplicationContext(), "package name copied to clipboard",
+                            Toast.LENGTH_SHORT).show();
+                    return true;
+                }
+            });
+
             return convertView;
         }
     }