ANDROID_MARS学习笔记_S01_011ProgressBar

<ProgressBar
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="@android:style/Widget.ProgressBar.Small"
android:layout_marginRight="5dp" />

<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >

<ProgressBar
android:id="@+id/firstProgressBar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
style="?android:attr/progressBarStyleHorizontal" />

<Button
android:id="@+id/firstButton"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/firstProgressBar"
android:text="增加第一进度"/>

<Button
android:id="@+id/secondButton"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/firstButton"
android:text="增加第二进度"/>

</RelativeLayout>

package com.marschen.s01_e17_progressbar;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ProgressBar;

public class MainActivity extends Activity {

private ProgressBar progressBar;
private Button firstButton;
private Button secondButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

progressBar = (ProgressBar)findViewById(R.id.firstProgressBar);
firstButton = (Button)findViewById(R.id.firstButton);
secondButton = (Button)findViewById(R.id.secondButton);

progressBar.setMax(100);

firstButton.setOnClickListener(new FirstListener());
secondButton.setOnClickListener(new SecondListener());

}

class FirstListener implements OnClickListener{

@Override
public void onClick(View v) {
progressBar.incrementProgressBy(10);
}

}

class SecondListener implements OnClickListener{

@Override
public void onClick(View v) {
progressBar.incrementSecondaryProgressBy(20);
}

}

@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;
}

}