安卓实现日期选择

首先贴上布局文件的代码,我们需要一个Button和一个EditText控件，注意这里的android:focusable=”false”是指EditText不可编辑

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    android:orientation="vertical"
    tools:context="com.example.yuejian5.activity.ActivityDetailActivity">       
        <EditText
            android:id="@+id/date"
            android:hint="日期"
            android:focusable="false"
            android:layout_marginLeft="38dp"
            android:layout_width="wrap_content"
            android:layout_height="50dp" />
        <Button
            android:text="选择日期"
            android:id="@+id/choose"
            android:layout_width="wrap_content"
            android:layout_height="50dp" />
    </LinearLayout>

下面是Activity中的代码

public class ActivityDetailActivity extends BaseActivity {
    private int mYear;
    private int mMonth;
    private int mDay;
    private EditText tv_data;
    private Button choose;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_detail);
        tv_data = (EditText) findViewById(R.id.date);
        choose = (Button) findViewById(R.id.choose);
        Calendar ca = Calendar.getInstance();
        mYear = ca.get(Calendar.YEAR);
        mMonth = ca.get(Calendar.MONTH);
        mDay = ca.get(Calendar.DAY_OF_MONTH);
        choose.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //TODO 调用时间选择器
                new DatePickerDialog(ActivityDetailActivity.this, onDateSetListener, mYear, mMonth, mDay).show();
            }
        });
    }

    private DatePickerDialog.OnDateSetListener onDateSetListener = new DatePickerDialog.OnDateSetListener() {

        @Override
        public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
            mYear = year;
            mMonth = monthOfYear;
            mDay = dayOfMonth;
            String days;
            if (mMonth + 1 < 10) {
                if (mDay < 10) {
                    days = new StringBuffer().append(mYear).append("年").append("0").
                            append(mMonth + 1).append("月").append("0").append(mDay).append("日").toString();
                } else {
                    days = new StringBuffer().append(mYear).append("年").append("0").
                            append(mMonth + 1).append("月").append(mDay).append("日").toString();
                }

            } else {
                if (mDay < 10) {
                    days = new StringBuffer().append(mYear).append("年").
                            append(mMonth + 1).append("月").append("0").append(mDay).append("日").toString();
                } else {
                    days = new StringBuffer().append(mYear).append("年").
                            append(mMonth + 1).append("月").append(mDay).append("日").toString();
                }

            }
            tv_data.setText(days);
        }
    };

}

看一下我们的效果图

这样我们的日期选择功能就做好了