xml文件代码部分
android:id="@+id/firstprobar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:max="200"
android:progress="100"
style="?android:attr/progressBarStyleHorizontal"
/>
android:id="@+id/bt1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/firstprobar"
android:text="前进"
/>
android:id="@+id/bt2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/bt1"
android:text="后退"
/>
Mainactivity中代码private ProgressBar probar;
private Button bt1;
private Button bt2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
probar=(ProgressBar)findViewById(R.id.firstprobar);
probar.setMax(100);
bt1=(Button)findViewById(R.id.bt1);
bt2=(Button)findViewById(R.id.bt2);
FirstLis f=new FirstLis();
SecondLis s=new SecondLis();
bt1.setOnClickListener(f);
bt2.setOnClickListener(s);
}
class FirstLis implements OnClickListener{
@Override
public void onClick(View v) {
probar.incrementProgressBy(10);
}
}
class SecondLis implements OnClickListener{
@Override
public void onClick(View v) {
probar.incrementProgressBy(-10);
}
}