Android progressBar未显示
我的自定义进度条不显示。我在我的活动中为它设置动画,并使用可绘制的资源文件。这是我的密码 Activity.javaAndroid progressBar未显示,android,progress-bar,android-progressbar,Android,Progress Bar,Android Progressbar,我的自定义进度条不显示。我在我的活动中为它设置动画,并使用可绘制的资源文件。这是我的密码 Activity.java ProgressBar progressBar; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_home); pro
ProgressBar progressBar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
progressBar = findViewById(R.id.progressBar);
ObjectAnimator animation = ObjectAnimator.ofInt(progressBar, "progress",
0, 500);
animation.setDuration(5000); // in milliseconds
animation.setInterpolator(new DecelerateInterpolator());
animation.start();
activity.xml
<ProgressBar
android:id="@+id/progressBar"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="150dp"
android:layout_height="150dp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:max="500"
android:progress="0"
android:progressDrawable="@drawable/circular"
app:layout_constraintBottom_toBottomOf="@+id/relativeLayout"
app:layout_constraintEnd_toEndOf="@+id/relativeLayout"
app:layout_constraintHorizontal_bias="0.475"
app:layout_constraintStart_toStartOf="@+id/relativeLayout"
app:layout_constraintTop_toTopOf="@+id/relativeLayout"
app:layout_constraintVertical_bias="0.153" />
drawableResource.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:useLevel="true"
android:indeterminate="true"
android:innerRadiusRatio="2.3"
android:shape="ring"
android:thickness="3.8sp" >
<solid android:color="@color/colorPrimary" />
</shape>
不确定为什么您的自定义设置不起作用,但这个设置与activity.java配合使用,因此您的XML肯定是问题所在。这是一个有效的进度条。如果您希望添加百分比,我建议您在此处查看:
Hi@Kamarudeen Ayankunbi我如何才能添加您在我的android项目中提到的库。请详细说明???尝试以下方法:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<ProgressBar android:indeterminate="true"
android:useLevel="true"
android:layout_centerInParent="true"
android:indeterminateDrawable="@drawable/circular"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:id="@+id/progressBar1"></ProgressBar>
</RelativeLayout>