我在我的Android应用程序中使用水平进度条,我想改变它的进度颜色(默认为黄色)。我如何使用代码(而不是XML)做到这一点?


当前回答

我知道我迟到了,但如果你只想改变进度条的颜色,这是最简单的解决方案,在你的主题中,只需添加,

@color - your_color

colorSecondary将改变你整个进程的颜色。

其他回答

最简单的解决方案,如果你想改变布局xml文件的颜色,使用下面的代码和使用indeterminateTint属性为您想要的颜色。

    <ProgressBar
      android:id="@+id/progressBar"
      style="?android:attr/progressBarStyle"
      android:layout_width="wrap_content"
      android:indeterminate="true"
      android:indeterminateTintMode="src_atop"
      android:indeterminateTint="#ddbd4e"
      android:layout_height="wrap_content"
      android:layout_marginBottom="20dp"
      android:layout_alignParentBottom="true"
      android:layout_centerHorizontal="true" />

还有一件小事,如果你继承了一个基础主题,主题解决方案也会起作用,所以对于应用紧凑,你的主题应该是:

<style name="AppTheme.Custom" parent="@style/Theme.AppCompat">
    <item name="colorAccent">@color/custom</item>
</style>

然后在进度条主题中设置这个

<ProgressBar
    android:id="@+id/progressCircle_progressBar"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center_horizontal"
    android:theme="@style/AppTheme.Custom"
    android:indeterminate="true"/>

对于水平风格的ProgressBar,我使用:

import android.widget.ProgressBar;
import android.graphics.drawable.GradientDrawable;
import android.graphics.drawable.ClipDrawable;
import android.view.Gravity;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.LayerDrawable;

public void setColours(ProgressBar progressBar,
                        int bgCol1, int bgCol2, 
                        int fg1Col1, int fg1Col2, int value1,
                        int fg2Col1, int fg2Col2, int value2)
  {
    //If solid colours are required for an element, then set
    //that elements Col1 param s the same as its Col2 param
    //(eg fg1Col1 == fg1Col2).

    //fgGradDirection and/or bgGradDirection could be parameters
    //if you require other gradient directions eg LEFT_RIGHT.

    GradientDrawable.Orientation fgGradDirection
        = GradientDrawable.Orientation.TOP_BOTTOM;
    GradientDrawable.Orientation bgGradDirection
        = GradientDrawable.Orientation.TOP_BOTTOM;

    //Background
    GradientDrawable bgGradDrawable = new GradientDrawable(
            bgGradDirection, new int[]{bgCol1, bgCol2});
    bgGradDrawable.setShape(GradientDrawable.RECTANGLE);
    bgGradDrawable.setCornerRadius(5);
    ClipDrawable bgclip = new ClipDrawable(
            bgGradDrawable, Gravity.LEFT, ClipDrawable.HORIZONTAL);     
    bgclip.setLevel(10000);

    //SecondaryProgress
    GradientDrawable fg2GradDrawable = new GradientDrawable(
            fgGradDirection, new int[]{fg2Col1, fg2Col2});
    fg2GradDrawable.setShape(GradientDrawable.RECTANGLE);
    fg2GradDrawable.setCornerRadius(5);
    ClipDrawable fg2clip = new ClipDrawable(
            fg2GradDrawable, Gravity.LEFT, ClipDrawable.HORIZONTAL);        

    //Progress
    GradientDrawable fg1GradDrawable = new GradientDrawable(
            fgGradDirection, new int[]{fg1Col1, fg1Col2});
    fg1GradDrawable.setShape(GradientDrawable.RECTANGLE);
    fg1GradDrawable.setCornerRadius(5);
    ClipDrawable fg1clip = new ClipDrawable(
            fg1GradDrawable, Gravity.LEFT, ClipDrawable.HORIZONTAL);        

    //Setup LayerDrawable and assign to progressBar
    Drawable[] progressDrawables = {bgclip, fg2clip, fg1clip};
    LayerDrawable progressLayerDrawable = new LayerDrawable(progressDrawables);     
    progressLayerDrawable.setId(0, android.R.id.background);
    progressLayerDrawable.setId(1, android.R.id.secondaryProgress);
    progressLayerDrawable.setId(2, android.R.id.progress);

    //Copy the existing ProgressDrawable bounds to the new one.
    Rect bounds = progressBar.getProgressDrawable().getBounds();
    progressBar.setProgressDrawable(progressLayerDrawable);     
    progressBar.getProgressDrawable().setBounds(bounds);

    // setProgress() ignores a change to the same value, so:
    if (value1 == 0)
        progressBar.setProgress(1);
    else
        progressBar.setProgress(0);
    progressBar.setProgress(value1);

    // setSecondaryProgress() ignores a change to the same value, so:
    if (value2 == 0)
        progressBar.setSecondaryProgress(1);
    else
        progressBar.setSecondaryProgress(0);
    progressBar.setSecondaryProgress(value2);

    //now force a redraw
    progressBar.invalidate();
  }

一个调用的例子是:

  setColours(myProgressBar, 
          0xff303030,   //bgCol1  grey 
          0xff909090,   //bgCol2  lighter grey 
          0xff0000FF,   //fg1Col1 blue 
          0xffFFFFFF,   //fg1Col2 white
          50,           //value1
          0xffFF0000,   //fg2Col1 red 
          0xffFFFFFF,   //fg2Col2 white
          75);          //value2

如果您不需要“次要进度”,只需将value2设置为value1。

android:progressTint="#ffffff" 

更改水平进度条颜色(kotlin):

fun tintHorizontalProgress(progress: ProgressBar, @ColorInt color: Int = ContextCompat.getColor(progress.context, R.color.colorPrimary)){
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        progress.progressTintList = ColorStateList.valueOf(color)
    } else{
        val layerDrawable = progress.progressDrawable as? LayerDrawable
        val progressDrawable = layerDrawable?.findDrawableByLayerId(android.R.id.progress)
        progressDrawable?.setColorFilter(color, PorterDuff.Mode.SRC_ATOP)
    }
}

更改不确定的ProgressBar颜色:

fun tintIndeterminateProgress(progress: ProgressBar, @ColorInt color: Int = ContextCompat.getColor(progress.context, R.color.colorPrimary)){
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        progress.indeterminateTintList = ColorStateList.valueOf(color)
    } else {
        (progress.indeterminateDrawable as? LayerDrawable)?.apply {
            if (numberOfLayers >= 2) {
                setId(0, android.R.id.progress)
                setId(1, android.R.id.secondaryProgress)
                val progressDrawable = findDrawableByLayerId(android.R.id.progress).mutate()
                progressDrawable.setColorFilter(color, PorterDuff.Mode.SRC_ATOP)
            }
        }
    }
}

它最终正常地着色pre-lollipop progressBars