锁屏界面

锁屏的代码在
/frameworks/polices/bases/phone/com/android/internal/policy/impl/LockScreen.java
可以设置锁屏功能开关的代码位于：
frameworks/policies/base/phone/com/android/internal/policy/impl/LockPatternKeyguardView
/738

packages\apps\Settings\AndroidManifest.xml中的注释掉

Strings.xml
Drawables folder
/anim/fade_in1.xml
/anim/fade_out1.xml
/anim/fade_in1_delay.xml
/layout/keyguard_screen_lock.xml
framework/policies/base/phone/com/android/internal/policy/impl/Lockscreen.java
framework/policies/base/phone/com/android/internal/policy/impl/KeyguardUpdateMonitor.java
framework/policies/base/phone/com/android/internal/policy/impl/KeyguardViewMediator.java

时钟字体：
涉及文件：/frameworks/base/core/java/com/android/internal/widget/DigitalClock.java
/frameworks/base/core/res/res/layout/
keyguard_screen_lock.xml：
可以修改：屏幕左边可能出现的information的布局，包括图片
keyguard_screen_tab_unlock_land.xml：
可以修改：服务，时钟， ampm，字体大小，类型
keyguard_screen_unlock_landscape:
可以修改：说明，紧急电话，忘记模式按钮
xml
TextView有一个属性是设置字体的，有四种
android:typeface="normal"
android:typeface="sans"
android:typeface="serif"
android:typeface="monospace"
android:textStyle=""加粗/斜体等，
/external/freetype/该文件夹中包含全部字体相关文件
java代码中：
Typeface face=Typeface.createFromAsset(getAssets(), "XXX.ttf");
//xxx.ttf放入assets目录下
textview.setTypeface(face);
其他：

下面是Android默认字体和自定义字体的绘制效果：
源代码如下：
Java代码：

package com.yarin.android.Typefaces;

import android.app.Activity;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Typeface;
import android.os.Bundle;
import android.view.View;

public class Typefaces extends Activity
{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);

setContentView(new SampleView(this));
}

private static class SampleView extends View
{
private Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
private Typeface mFace;

public SampleView(Context context)
{
super(context);
//实例化自定义字体
mFace = Typeface.createFromAsset(getContext().getAssets(),"fonts/samplefont.ttf");
//设置字体大小
mPaint.setTextSize(32);
}

@Override protected void onDraw(Canvas canvas)
{
canvas.drawColor(Color.WHITE);
//绘制默认字体
mPaint.setTypeface(null);
canvas.drawText("Default:abcdefg", 10, 100, mPaint);
//绘制自定义字体
mPaint.setTypeface(mFace);
canvas.drawText("Custom:abcdefg", 10, 200, mPaint);
}
}
}

好了，就这么简单就实现了自定义字体。

下面是两个非常有用的方法，在这里备份一下：

Java代码：

//消除锯齿
paint.setFlags(Paint.ANTI_ALIAS_FLAG)
//取得字符串宽度
paint.measureText()

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