进度条
一、ProgressBar控件：
布局文件代码：
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<ProgressBar
android:id="@+id/bar1"android:text="@string/hello"android:layout_width="fill_parent"
android:layout_height="30dp"
style="@android:style/Widget.ProgressBar.Horizontal"
android:visibility="gone"
/>
<Buttonandroid:id="@+id/btn"android:text="单击增加"
android:layout_width="fill_parent"android:layout_height="wrap_content"/>
Activity代码：
btn1.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
if(i==0){
bar.setVisibility(ProgressBar.VISIBLE);
}else if(i<bar.getMax()){
bar.setProgress(i);
bar.setSecondaryProgress(i+10);
}else{
bar.setVisibility(ProgressBar.GONE);
}
i+=10;
}
});
二、SeekBar
Activity代码:
public class SeekBarDemoActivity extends Activity {
private SeekBar seekbar=null;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
seekbar=(SeekBar)findViewById(R.id.seekbar1);
seekbar.setMax(100);
seekbar.setOnSeekBarChangeListener(new ClickSeekBar());
}
class ClickSeekBar implements SeekBar.OnSeekBarChangeListener{
@Override
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
// TODO Auto-generated method stub
Toast.makeText(SeekBarDemoActivity.this, progress+"", Toast.LENGTH_LONG).show();
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
Toast.makeText(SeekBarDemoActivity.this, seekBar.getProgress()+"", Toast.LENGTH_LONG).show();
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
Toast.makeText(SeekBarDemoActivity.this, seekBar.getProgress()+"", Toast.LENGTH_LONG).show();
}
};
}
main.xml代码
<?xmlversion="1.0"encoding="utf-8"?>
<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<SeekBar
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/seekbar1"
/>
</LinearLayout>
