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Add test cases for BalanceSeekBar

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Bug: 123722274
Test: Manual
      make RunSettingsRoboTests ROBOTEST_FILTER=BalanceSeekBar

Change-Id: Ie6b560b2f92d78a0d3bd7ddb0e0d0a85c7803827
This commit is contained in:
Kevin Chang
2019-02-23 08:46:34 +08:00
parent 38d1640da5
commit a22bd67d5c
4 changed files with 204 additions and 10 deletions
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10
src/com/android/settings/accessibility/BalanceSeekBarPreference.java
View File

@@ -34,7 +34,9 @@ import com.android.settings.widget.SeekBarPreference;
/** A slider preference that directly controls audio balance **/
public class BalanceSeekBarPreference extends SeekBarPreference {
private static final String TAG = "BalanceSeekBarPreference";
private static final int BALANCE_CENTER_VALUE = 100;
private static final int BALANCE_MAX_VALUE = 200;
private final Context mContext;
private BalanceSeekBar mSeekBar;
private ImageView mIconView;
@@ -62,9 +64,9 @@ public class BalanceSeekBarPreference extends SeekBarPreference {
final float balance = Settings.System.getFloatForUser(
mContext.getContentResolver(), Settings.System.MASTER_BALANCE,
0.f /* default */, UserHandle.USER_CURRENT);
// Rescale balance to range 0-200 centered at 100.
mSeekBar.setMax(200);
mSeekBar.setProgress((int)(balance * 100.f) + 100);
// Rescale balance to range 0-BALANCE_MAX_VALUE centered at BALANCE_MAX_VALUE / 2.
mSeekBar.setMax(BALANCE_MAX_VALUE);
mSeekBar.setProgress((int) (balance * 100.f) + BALANCE_CENTER_VALUE);
mSeekBar.setEnabled(isEnabled());
}
}