安卓学习-界面-ui-DatePickerDialog、TimePickerDialog和ProgressDialog

1.DatePickerDialog和TimePickerDialog

例子

  

activity_main.xml

<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"
    tools:context="${relativePackage}.${activityClass}" >

    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/button1"
        android:layout_alignBottom="@+id/button1"
        android:layout_alignParentRight="true"
        android:layout_marginRight="80dp"
        android:text="时间" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_marginRight="50dp"
        android:layout_marginTop="32dp"
        android:layout_toLeftOf="@+id/button2"
        android:text="日期" />

</RelativeLayout>

MainActivity.java

public class MainActivity extends Activity {
    
    TextView tv1;
    TextView tv2;
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        
        Button btn1=(Button)findViewById(R.id.button1);
        Button btn2=(Button)findViewById(R.id.button2);

        
        btn1.setOnClickListener(new OnClickListener() {
            Calendar c=Calendar.getInstance();
            @Override
            public void onClick(View v) {
                DatePickerDialog d=new DatePickerDialog(MainActivity.this,new OnDateSetListener() {
                    
                    @Override
                    public void onDateSet(DatePicker view, int year, int monthOfYear,
                            int dayOfMonth) {
                        Toast.makeText(MainActivity.this, "年"+year+"：月"+(monthOfYear+1)+"：日"+dayOfMonth, Toast.LENGTH_SHORT).show();
                    }
                },c.get(Calendar.YEAR),c.get(Calendar.MONTH),c.get(Calendar.DAY_OF_MONTH));
                d.show();
            }
        });
        
        btn2.setOnClickListener(new OnClickListener() {
            Calendar c=Calendar.getInstance();
            @Override
            public void onClick(View v) {
                TimePickerDialog t=new TimePickerDialog(MainActivity.this, new OnTimeSetListener() {
                    
                    @Override
                    public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
                        // TODO 自动生成的方法存根
                        Toast.makeText(MainActivity.this, "时"+hourOfDay+"：分"+(minute+1), Toast.LENGTH_SHORT).show();
                    }
                }, c.get(Calendar.HOUR_OF_DAY), c.get(Calendar.MINUTE), true);
                t.show();
            }
        });
    }
}

2.ProgressDialog

  

activity_main.xml

<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"
    tools:context="${relativePackage}.${activityClass}" >

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginLeft="59dp"
        android:text="无进度条" />

    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignRight="@+id/button1"
        android:layout_below="@+id/button1"
        android:layout_marginTop="33dp"
        android:text="带进度条" />

    <Button
        android:id="@+id/button3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/button2"
        android:layout_below="@+id/button2"
        android:layout_marginTop="50dp"
        android:text="模拟耗时" />

</RelativeLayout>

MainActivity

public class MainActivity extends Activity {

    ProgressDialog p;
    int pos=0;
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        
        Button btn1=(Button)findViewById(R.id.button1);
        Button btn2=(Button)findViewById(R.id.button2);
        Button btn3=(Button)findViewById(R.id.button3);

        
        btn1.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                ProgressDialog.show(MainActivity.this, "任务执行中","任务执行中，请等待......", true,false);
            }
        });
        
        btn2.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                p=new ProgressDialog(MainActivity.this);
                p.setTitle("任务执行中");
                p.setMessage("任务执行中，请等待......");
                //可以被取消
                p.setCancelable(true);
                //样式
                //滚动    ProgressDialog.STYLE_SPINNER 
                //水平进度    STYLE_HORIZONTAL
                p.setProgressStyle(ProgressDialog.STYLE_SPINNER);
                p.setIndeterminate(true);
                p.show();
            }
        });
        
        final Handler handler =new Handler(){
            @Override
            public void handleMessage(Message msg) {
                if(msg.what==1234){
                    p.setProgress(pos);
                    if(pos==100){
                        Toast.makeText(MainActivity.this, "完成", Toast.LENGTH_SHORT).show();
                    }    
                }
            }
        };
        
        btn3.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                p=new ProgressDialog(MainActivity.this);
                p.setMax(100);
                p.setMax(0);
                p.setTitle("任务执行中");
                p.setMessage("任务执行完成比，请等待......");
                p.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
                p.setCancelable(false);
                p.setIndeterminate(false);
                p.show();
                new Thread(){
                    public void run() {
                        try {
                            while(pos<=100){
                                pos=pos+1;
                                Message msg=new Message();
                                msg.what=1234;
                                handler.sendMessage(msg);
                                sleep(100);
                            }    
                            p.dismiss();
                            
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }                        
                    };
                }.start();
                
            }
        });
    }
}