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

所有接口

如果使用所有的API只创建主题的样式

style.xml

<resources>

    //...

    <style name="progressBarBlue" parent="@style/Theme.AppCompat">
        <item name="colorAccent">@color/blue</item>
    </style>

</resources>

在进行中使用

<ProgressBar
    ...
    android:theme="@style/progressBarBlue" />

空气污染指数21或以上

如果在API级别21及以上使用,请使用以下代码:

<ProgressBar
   //...
   android:indeterminate="true"
   android:indeterminateTintMode="src_atop"
   android:indeterminateTint="@color/secondary"/>

其他回答

ProgressBar bar;

private Handler progressBarHandler = new Handler();

GradientDrawable progressGradientDrawable = new GradientDrawable(
        GradientDrawable.Orientation.LEFT_RIGHT, new int[]{
                0xff1e90ff,0xff006ab6,0xff367ba8});
ClipDrawable progressClipDrawable = new ClipDrawable(
        progressGradientDrawable, Gravity.LEFT, ClipDrawable.HORIZONTAL);
Drawable[] progressDrawables = {
        new ColorDrawable(0xffffffff),
        progressClipDrawable, progressClipDrawable};
LayerDrawable progressLayerDrawable = new LayerDrawable(progressDrawables);


int status = 0;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // TODO Auto-generated method stub
    setContentView(R.layout.startup);

    bar = (ProgressBar) findViewById(R.id.start_page_progressBar);
    bar.setProgress(0);
    bar.setMax(100);

    progressLayerDrawable.setId(0, android.R.id.background);
    progressLayerDrawable.setId(1, android.R.id.secondaryProgress);
    progressLayerDrawable.setId(2, android.R.id.progress);

    bar.setProgressDrawable(progressLayerDrawable);
}

这帮助我通过代码设置自定义颜色为progressbar。希望能有所帮助

相信我,最简单的解决方法就是把这个粘贴到progressBar中:

android:indeterminateTint="@android:color/white"

默认值(不确定)

add

android:indeterminateTint="@color/white"

为确定

    android:progressTint="@color/color_1"

    //OR
    progressBar.getProgressDrawable().setColorFilter( PorterDuffColorFilter(Color.RED,android.graphics.PorterDuff.Mode.SRC_IN));

很抱歉,这不是答案,但是是什么驱使需求从代码中设置它呢? 如果定义正确。setprogressdrawable应该工作

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">

<item android:id="@android:id/background">
    <shape>
        <corners android:radius="5dip" />
        <gradient
                android:startColor="#ff9d9e9d"
                android:centerColor="#ff5a5d5a"
                android:centerY="0.75"
                android:endColor="#ff747674"
                android:angle="270"
        />
    </shape>
</item>

<item android:id="@android:id/secondaryProgress">
    <clip>
        <shape>
            <corners android:radius="5dip" />
            <gradient
                    android:startColor="#80ffd300"
                    android:centerColor="#80ffb600"
                    android:centerY="0.75"
                    android:endColor="#a0ffcb00"
                    android:angle="270"
            />
        </shape>
    </clip>
</item>

<item android:id="@android:id/progress">
    <clip>
        <shape>
            <corners
                android:radius="5dip" />
            <gradient
                android:startColor="@color/progress_start"
                android:endColor="@color/progress_end"
                android:angle="270" 
            />
        </shape>
    </clip>
</item>

</layer-list>

如果不确定的:

((ProgressBar)findViewById(R.id.progressBar))
    .getIndeterminateDrawable()
    .setColorFilter(Color.RED, PorterDuff.Mode.SRC_IN);