场景
效果
注:
博客:
https://blog.****.net/badao_liumang_qizhi
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实现
将布局改为LinearLayout,并通过android:orientation="vertical">设置为垂直布局,然后添加一个RatingBar,并通过
android:rating=""
设置其星数为5
然后再添加一个Button,分别给他们添加Id。
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
android:orientation="vertical"
tools:context=".RatingBarActivity"> <RatingBar
android:id="@+id/ratingBar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:rating=""
/> <Button
android:id="@+id/btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#FF5000"
android:text="发表评价"
/> </LinearLayout>
然后来到Activity,通过Id获取RatingBar和Button,在button的点击事件中,获取星级数,并提示。
packagecom.badao.relativelayouttest; importandroidx.appcompat.app.AppCompatActivity; import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.RatingBar;
importandroid.widget.Toast; public class RatingBarActivity extends AppCompatActivity {
private RatingBarratingBar; @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_rating_bar);
ratingBar = (RatingBar) findViewById(R.id.ratingBar);
Button button = (Button) findViewById(R.id.btn);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
float rating = ratingBar.getRating();
Toast.makeText(RatingBarActivity.this,"你的评分为:"+rating+"分",Toast.LENGTH_SHORT).show();;
}
});
}
}