How to change the color of an indefinite ProgressB

问题:

I have a progressbar with the following style: style="?android:attr/android:progressBarStyleSmall"

Sadly the bar is nearly white and in my case displayed on a white background. The progressbar is nearly invisible because of that.

How can I change the color of the progressbar? A darker grey would be great.

回答1:

The reason why the bar is of that color is because of the style you have selected. That is a fixed style and uses the system themes for the generation of UI elements.

Look at the source code from here. This progressBarStyleSmall attribute uses the styles defined here.

<style name="Widget.ProgressBar.Small">
    <item name="android:indeterminateDrawable">@android:drawable/progress_small_white</item>
    <item name="android:minWidth">16dip</item>
    <item name="android:maxWidth">16dip</item>
    <item name="android:minHeight">16dip</item>
    <item name="android:maxHeight">16dip</item>
</style>

Just create a custom style following the example from the android source code. You would need to replace the android:indeterminateDrawable to what you want.

回答2:

progressBar.getIndeterminateDrawable().setColorFilter(
            getResources().getColor(R.color.light_light_purple),
            android.graphics.PorterDuff.Mode.SRC_IN);

This code changes the default holo inderminate drawable color to your own color. Define your color code and replace R.color.light_light_purple to R.color.your_color_code.

回答3:

To get a black ProgressBar, use one of the inverse styles:

<ProgressBar style="@android:style/Widget.ProgressBar.Inverse"/>
<ProgressBar style="@android:style/Widget.ProgressBar.Large.Inverse"/>
<ProgressBar style="@android:style/Widget.ProgressBar.Small.Inverse"/>

回答4:

public static void setColorOfProgressBar(ProgressBar mProgressBar, int mColor){
    mProgressBar.getIndeterminateDrawable().setColorFilter(mColor, android.graphics.PorterDuff.Mode.MULTIPLY);
}

回答5:

I had a very hard time trying to change it's color. To solve it, I got android's src code and did my own ProgressBar class.

Not the best answer, but it worked for me.

回答6:

And the answer was already on SO:

stackoverflow.com/questions/2020882/how-to-change-progress-bars-progress-color-in-android

You can simply change the whole drawable that is shown in the progressbar via the android:indeterminateDrawable attribute.

回答7:

Just a note, to use

<ProgressBar style="@android:style/Widget.ProgressBar.Inverse"/> 

or any of the inverse progress bars, you have to set your minimum android sdk requirement to level 4 (Android 1.6).