安卓基本控件之ProgressBar

布局文件

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#00ff00"
    android:orientation="vertical" >
    <!-- 进度条   style="?android:attr/progressBarStyleLarge"  是进度条的样式   android系统自带 -->
    
    <ProgressBar
        style="?android:attr/progressBarStyleLarge"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:progress="40"
        />
    <ProgressBar
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        />
    <ProgressBar
        style="?android:attr/progressBarStyleSmall"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        />
    <ProgressBar
        android:id="@+id/pb1"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:progress="40"
        />
    <!--
     android:progress="40"   当前进度
        android:secondaryProgress="60"  第二进度
     -->
    <SeekBar
        android:id="@+id/seekBar1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:progress="40"
        android:secondaryProgress="60"
        />

</LinearLayout>

Java代码

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.ProgressBar;
import android.widget.SeekBar;

public class MainActivity extends Activity {
    private ProgressBar pb1;
    private SeekBar seekBar1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
    
}