Hi Marc,
Big thanks for sharing the code.
I'm thinking of changing
> volumeLevel.setProgress(0); // You might want to fetch the value
> here from sharedpreferences
to
volumeLevel.setProgress(getPersistedInt(0));
and
> protected void onDialogClosed(boolean positiveResult) {
> if(positiveResult){
> persistString(volumeLevel.getProgress()+"");
> }
> }
to
persistInt(volumeLevel.getProgress())
and that becomes exactly the preference I need.
Thanks again for sharing!
Cheers,
Stoyan
On Fri, Jan 9, 2009 at 4:52 AM, Marc Lester Tan <[email protected]> wrote:
> Hi Stoyan,
>
> Yesterday I also asked myself if there's a Seekbar preference but I looked
> around and did not find any so I created my own. Here's my code if it will
> help you.
>
>
> public class SeekBarPreference extends DialogPreference{
>
> private Context context;
> private SeekBar volumeLevel;
>
> public SeekBarPreference(Context context, AttributeSet attrs) {
> super(context, attrs);
> this.context = context;
> }
>
> protected void onPrepareDialogBuilder(Builder builder) {
>
> LinearLayout layout = new LinearLayout(context);
> layout.setLayoutParams(new
> LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT,
> LinearLayout.LayoutParams.WRAP_CONTENT));
> layout.setMinimumWidth(400);
> layout.setPadding(20, 20, 20, 20);
>
> volumeLevel = new SeekBar(context);
> volumeLevel.setMax(8);
> volumeLevel.setLayoutParams(new
> ViewGroup.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT,
> ViewGroup.LayoutParams.WRAP_CONTENT));
> volumeLevel.setProgress(0); // You might want to fetch the value
> here from sharedpreferences
>
> layout.addView(volumeLevel);
>
>
> builder.setView(layout);
>
> super.onPrepareDialogBuilder(builder);
> }
>
> protected void onDialogClosed(boolean positiveResult) {
> if(positiveResult){
> persistString(volumeLevel.getProgress()+"");
> }
> }
>
> }
>
>
> then in your activity you can use this class:
>
> SeekBarPreference sb = new SeekBarPreference(this, null);
> sb.setTitle(R.string.volume);
> sb.setSummary(R.string.volume_summary);
> sb.setKey(VOLUME_LEVEL_PREF);
>
> -Marc
>
> On Fri, Jan 9, 2009 at 9:13 AM, Stoyan Damov <[email protected]> wrote:
>>
>> Hi guys,
>>
>> The emulator and G1's Settings apps apparently launches a preference
>> activity.
>> In Settings, Sound and Display, when you touch the "Ringer volume"
>> setting, a dialog pops up, which shows a SeekBar.
>> My question is how is this implemented because I need a similar (seek
>> bar-driven) setting in my app.
>>
>> I don't have Android's source code and am hesitant to download 2.1G
>> just to check :(
>> I'm guess this setting does NOT launch an intent which pops up the
>> dialog (because I'd expect that intent to be wrapped in
>> PreferenceScreen and then I'd see the circled arrow indicator) but
>> can't be sure.
>> I know many people on the list are Google employees and am hoping I'll
>> get an answer.
>>
>> Thanks in advance,
>> Stoyan
>>
>>
>
>
> >
>
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