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最新推荐文章于 2022-09-15 23:07:17 发布

转载最新推荐文章于 2022-09-15 23:07:17 发布 · 66 阅读

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原文链接：http://www.cnblogs.com/Moon-Face/p/4506296.html

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/layoutMain"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity" >

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="match_parent"
        android:layout_height="300px"
        android:scaleType="fitCenter"
        android:src="@drawable/a1" />

    <RatingBar
        android:id="@+id/ratingBar1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:max="255"
        android:numStars="5"
        android:progress="255" />

</LinearLayout>

package com.moon.hello2;

import java.util.Calendar;

import android.R.anim;
import android.R.integer;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.RatingBar;
import android.widget.RatingBar.OnRatingBarChangeListener;
import android.widget.SeekBar;
import android.widget.DatePicker.OnDateChangedListener;
import android.widget.SeekBar.OnSeekBarChangeListener;
import android.widget.TextView;
import android.widget.TimePicker;
import android.widget.TimePicker.OnTimeChangedListener;

public class MainActivity extends Activity {
    private int status = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.setContentView(R.layout.activity_main);
        final ImageView imageView = (ImageView)findViewById(R.id.imageView1);
        RatingBar ratingBar = (RatingBar)findViewById(R.id.ratingBar1);
        ratingBar.setOnRatingBarChangeListener(new OnRatingBarChangeListener() {
            
            @Override
            public void onRatingChanged(RatingBar arg0, float rating, boolean arg2) {
                // TODO Auto-generated method stub
                imageView.setAlpha(rating*5/255);
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

}

转载于:https://www.cnblogs.com/Moon-Face/p/4506296.html