Android RoboGuice2 使用指南(3): Inject 自定义View

本例使用一个自定义的TextView，每隔1秒显示当前时间。前定义如下：

[java]
//--------------------------------- PACKAGE ------------------------------------
package com.pstreets.guice.customview;

//--------------------------------- IMPORTS ------------------------------------
import android.content.Context;
import android.os.Handler;
import android.util.AttributeSet;
import android.widget.TextView;

import java.util.Calendar;
import java.util.Date;

public final class TimeTextView extends TextView {

    public TimeTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
        postDelayed(mUpdateView, mRepeatTimePeriod);

    }

    private void setTimeString() {
        Calendar c = Calendar.getInstance();
        Date currentTime = c.getTime();
        String timeString = formatTime(currentTime);
        setText(timeString);
    }

    private Handler mHandler = new Handler();
    /**
     * one second.
     */
    private int mRepeatTimePeriod = 1000;

    private Runnable mUpdateView = new Runnable() {

        @Override
        public void run() {
            TimeTextView.this.setTimeString();
            // Force toggle again in a second
            mHandler.postDelayed(this, mRepeatTimePeriod);
        }

    };

    private String formatTime(Date time) {
        int hours = time.getHours();
        int miniutes = time.getMinutes();
        int seconds = time.getSeconds();
        String ret = "";
        if (hours < 10) {
            ret += "0";
        }
        ret += hours + ":";
        if (miniutes < 10) {
            ret += "0";
        }
        ret += miniutes + ":";
        if (seconds < 10) {
            ret += "0";
        }
        ret += seconds;

        return ret;
    }

}
//--------------------------------- PACKAGE ------------------------------------
package com.pstreets.guice.customview;

//--------------------------------- IMPORTS ------------------------------------
import android.content.Context;
import android.os.Handler;
import android.util.AttributeSet;
import android.widget.TextView;

import java.util.Calendar;
import java.util.Date;

public final class TimeTextView extends TextView {

    public TimeTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
        postDelayed(mUpdateView, mRepeatTimePeriod);

    }

    private void setTimeString() {
        Calendar c = Calendar.getInstance();
        Date currentTime = c.getTime();
        String timeString = formatTime(currentTime);
        setText(timeString);
    }

    private Handler mHandler = new Handler();
    /**
     * one second.
     */
    private int mRepeatTimePeriod = 1000;

    private Runnable mUpdateView = new Runnable() {

        @Override
        public void run() {
            TimeTextView.this.setTimeString();
            // Force toggle again in a second
            mHandler.postDelayed(this, mRepeatTimePeriod);
        }

    };

    private String formatTime(Date time) {
        int hours = time.getHours();
        int miniutes = time.getMinutes();
        int seconds = time.getSeconds();
        String ret = "";
        if (hours < 10) {
            ret += "0";
        }
        ret += hours + ":";
        if (miniutes < 10) {
            ret += "0";
        }
        ret += miniutes + ":";
        if (seconds < 10) {
            ret += "0";
        }
        ret += seconds;

        return ret;
    }

}
修改main.xml

[html]
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:lay

补充：移动开发 , Android ,