xml文件代码部分
<ProgressBar android:id="@+id/firstprobar" android:layout_width="match_parent" android:layout_height="wrap_content" android:max="200" android:progress="100" style="?android:attr/progressBarStyleHorizontal" /> <Button android:id="@+id/bt1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/firstprobar" android:text="前进" /> <Button 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); /*probar.setProgress(20); boolean flag=probar.isIndeterminate(); Toast.makeText(getApplicationContext(), flag+"", Toast.LENGTH_LONG).show();*/ 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); } }
时间: 2024-10-14 19:39:08