android timepicker例子 androidtimepicker|Android

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【android timepicker例子】Android TimePicker小部件用于选择日期。它允许你按小时和分钟选择时间。你无法按秒选择时间。
android.widget.TimePicker是FrameLayout类的子类。
Android TimePicker示例
让我们看一个简单的android时间选择器示例。
activity_main.xml

< ?xml version="1.0" encoding="utf-8"?> < RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="example.srcmini.com.timepicker.MainActivity">< TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_above="@+id/button1" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" android:layout_marginBottom="102dp" android:layout_marginLeft="30dp" android:layout_marginStart="30dp" android:text="" />< Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android:layout_marginBottom="20dp" android:text="Change Time" />< TimePicker android:id="@+id/timePicker" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_above="@+id/textView1" android:layout_centerHorizontal="true" android:layout_marginBottom="36dp" /> < /RelativeLayout>

活动类

package example.srcmini.com.timepicker; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.TextView; import android.widget.TimePicker; public class MainActivity extends AppCompatActivity { TextView textview1; TimePicker timepicker; Button changetime; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); textview1=(TextView)findViewById(R.id.textView1); timepicker=(TimePicker)findViewById(R.id.timePicker); //Uncomment the below line of code for 24 hour view timepicker.setIs24HourView(true); changetime=(Button)findViewById(R.id.button1); textview1.setText(getCurrentTime()); changetime.setOnClickListener(new View.OnClickListener(){ @Override public void onClick(View view) { textview1.setText(getCurrentTime()); } }); }public String getCurrentTime(){ String currentTime="Current Time: "+timepicker.getCurrentHour()+":"+timepicker.getCurrentMinute(); return currentTime; }}

输出：