Android高级控件（上）

Toast信息提示框

bt1.setOnClickListener(new OnClickListener() {
public void onClick(View v) {	
Toast.makeText(To.this, "短时间", Toast.LENGTH_SHORT).show();
tView.setText("短时间");
}
});
bt2.setOnClickListener(new OnClickListener() {

public void onClick(View v) {
// TODO Auto-generated method stub
Toast.makeText(To.this, "长时间", Toast.LENGTH_LONG).show();
tView.setText("长时间");
}
});

　　

AlertDialg警告框

bt3.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Dialog ad=new AlertDialog.Builder(To.this)
.setTitle("警告")//设置标题
.setIcon(R.drawable.icon)//设置图片
.setMessage("提示警告")//设置提示信息
.create();
ad.show();
}
});

ProgressDialog进度处理框

　　

bt4.setOnClickListener(new OnClickListener() {
			
			public void onClick(View v) {
				final ProgressDialog proDia=ProgressDialog
				.show(To.this, "搜索信号", "请耐心等待~~~");
				new Thread(){
					public void run(){
						try {
							Thread.sleep(3000);//运行3秒后关闭对话框
						} catch (Exception e) {
							// TODO: handle exception
						}finally{
							proDia.dismiss();//关闭对话框
						}
					}
				}.start();	//线程启动 
				proDia.show();//显示对话框
			}
		});　　

SeekBar拖动条

sb.setProgress(60);//固定进度
sb.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

public void onStopTrackingTouch(SeekBar seekBar) {

tView.append("结束拖动"+seekBar.getProgress());
}

public void onStartTrackingTouch(SeekBar seekBar) {
tView.append("开始拖动"+seekBar.getProgress());

}

public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
tView.append("拖动进度"+progress);

}
});

　　

ListView列表视图

<ListView
android:layout_width="fill_parent" 
android:entries="@array/city"
android:layout_height="wrap_content"
android:background="#ff0000"
></ListView>

　　

SimpleAdapter类设置列表视图

public class Simple extends Activity {
private List<Map<String, Object>> list=new ArrayList<Map<String,Object>>();
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.si);
ListView lv=(ListView)findViewById(R.id.lv);
String [] data=getResources().getStringArray(R.array.city);
for (int i = 0; i < data.length; i++) {
Map<String, Object> map=new HashMap<String, Object>();
map.put("photoId", R.drawable.ss);
map.put("data", data[i]);
list.add(map);
}
SimpleAdapter adapter=
new SimpleAdapter(this, list, R.layout.simple,
new String[]{"photoId","data"}, new int[]{R.id.lv,R.id.TextView01});
lv.setAdapter(adapter);
}
}