点击了开始按钮 会跳转到 CreateShortcutActivity.java
/*
* Copyright (C) 2008 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.anycut;
import Android.app.Dialog;
import android.app.ListActivity;
import android.content.ContentUris;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.res.Resources;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.Typeface;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.provider.Contacts;
import android.provider.Contacts.People;
import android.provider.Contacts.Phones;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
/**
* Presents the user with a list of types of shortucts that can be created. When
* Any Cut is launched through the home screen this is the activity that comes
* up.
*/
public class CreateShortcutActivity extends ListActivity implements DialogInterface.OnClickListener, Dialog.OnCancelListener {
private static final boolean ENABLE_ACTION_ICON_OVERLAYS = false;
private static final int REQUEST_PHONE = 1; // 电话
private static final int REQUEST_TEXT = 2; // 短信
private static final int REQUEST_ACTIVITY = 3; // 快捷程序
private static final int REQUEST_CUSTOM = 4; // 用户定义
private static final int LIST_ITEM_DIRECT_CALL = 0;
private static final int LIST_ITEM_DIRECT_TEXT = 1;
private static final int LIST_ITEM_ACTIVITY = 2;
private static final int LIST_ITEM_CUSTOM = 3;
private static final int DIALOG_SHORTCUT_EDITOR = 1;
private Intent mEditorIntent;
@Override
public void onCreate(Bundle savedState) {
super.onCreate(savedState);
// 重XML文件中加载数据
setListAdapter(ArrayAdapter.createFromResource(this, R.array.mainMenu, android.R.layout.simple_list_item_1));
}
@Override
protected void onListItemClick(ListView list, View view, int position, long id) {
switch (position) {
case LIST_ITEM_DIRECT_CALL: {
Intent intent = new Intent(Intent.ACTION_PICK, Phones.CONTENT_URI); //显示联系人列表并重中选择一个联系人的URI链接方式
intent.putExtra(Contacts.Intents.UI.TITLE_EXTRA_KEY, getText(R.string.callShortcutActivityTitle)); //传递一个标题给联系人列表
startActivityForResult(intent, REQUEST_PHONE);//开启联系人选择的activity等待用户选择
break;
}
case LIST_ITEM_DIRECT_TEXT: {
Intent intent = new Intent(Intent.ACTION_PICK, Phones.CONTENT_URI);//显示联系人列表并重中选择一个联系人的URI链接方式
intent.putExtra(Contacts.Intents.UI.TITLE_EXTRA_KEY, getText(R.string.textShortcutActivityTitle));//传递一个标题给联系人列表
startActivityForResult(intent, REQUEST_TEXT);//开启联系人选择的activity等待用户选择
break;
}
case LIST_ITEM_ACTIVITY: {
Intent intent = new Intent();//建立链接
intent.setClass(this, ActivityPickerActivity.class);//设置链接地址
startActivityForResult(intent, REQUEST_ACTIVITY);//开启
break;
}
case LIST_ITEM_CUSTOM: {
Intent intent = new Intent();//建立链接
intent.setClass(this, CustomShortcutCreatorActivity.class);//设置链接地址
startActivityForResult(intent, REQUEST_CUSTOM);//开启
break;
}
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent result) {
if (resultCode != RESULT_OK) { //是否是正常的放回
return;
}
switch (requestCode) {//判断检验码
case REQUEST_PHONE: { //如果是建立电话快捷方式
startShortcutEditor(generatePhoneShortcut(result, R.drawable.sym_action_call, "tel", Intent.ACTION_CALL));//开启编辑的窗口
break;
}
case REQUEST_TEXT: {
startShortcutEditor(generatePhoneShortcut(result, R.drawable.sym_action_sms, "smsto", Intent.ACTION_SENDTO));//开启编辑的窗口
break;
}
case REQUEST_ACTIVITY:
case REQUEST_CUSTOM: {
startShortcutEditor(result);
break;
}
}
}
@Override
protected Dialog onCreateDialog(int dialogId) { //创建窗口
switch (dialogId) {
case DIALOG_SHORTCUT_EDITOR: {
return new ShortcutEditorDialog(this, this, this); //注意这个this,this,this
}
}
return super.onCreateDialog(dialogId);
}
@Override
protected void onPrepareDialog(int dialogId, Dialog dialog) {
switch (dialogId) {
case DIALOG_SHORTCUT_EDITOR: {
if (mEditorIntent != null) {
// If the editor intent hasn't been set already set it
ShortcutEditorDialog editor = (ShortcutEditorDialog) dialog;
editor.setIntent(mEditorIntent); //设置Intent
mEditorIntent = null;
}
}
}
}
/**
* Starts the shortcut editor
*
* @param shortcutIntent
* The shortcut intent to edit
*/
private void startShortcutEditor(Intent shortcutIntent) {
mEditorIntent = shortcutIntent; //准备好Intent
showDialog(DIALOG_SHORTCUT_EDITOR); //Dialog 会调用onCreateDialog（1）方法
}
public void onCancel(DialogInterface dialog) {
// Remove the dialog, it won't be used again
removeDialog(DIALOG_SHORTCUT_EDITOR);
}
public void onClick(DialogInterface dialog, int which) {
if (which == DialogInterface.BUTTON1) {
// OK button
ShortcutEditorDialog editor = (ShortcutEditorDialog) dialog;
Intent shortcut = editor.getIntent();
setResult(RESULT_OK, shortcut);
finish();
}
// Remove the dialog, it won't be used again
removeDialog(DIALOG_SHORTCUT_EDITOR);
}
/**
* Returns an Intent describing a direct text message shortcut.
* //result, R.drawable.sym_action_call, "tel", Intent.ACTION_CALL
* @param result
* The result from the phone number picker
* @return an Intent describing a phone number shortcut
*/
private Intent generatePhoneShortcut(Intent result, int actionResId, String scheme, String action) {
Uri phoneUri = result.getData(); //取得联系人的URI
long personId = 0;
String name = null;
String number = null;
int type;
/**
* 获取联系人的信息
*/
Cursor cursor = getContentResolver().query(phoneUri, new String[] { Phones.PERSON_ID, Phones.DISPLAY_NAME, Phones.NUMBER, Phones.TYPE }, null, null, null);
try {
cursor.moveToFirst();
personId = cursor.getLong(0);
name = cursor.getString(1);
number = cursor.getString(2);
type = cursor.getInt(3);
} finally {
if (cursor != null) {
cursor.close();
}
}
//*** 初始话快捷方式的链接
Intent intent = new Intent();
Uri personUri = ContentUris.withAppendedId(People.CONTENT_URI, personId);//建立联系人URI 不用phoneUri
intent.putExtra(Intent.EXTRA_SHORTCUT_ICON, generatePhoneNumberIcon(personUri, type, actionResId));
// Make the URI a direct tel: URI so that it will always continue to
// work
phoneUri = Uri.fromParts(scheme, number, null);
intent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, new Intent(action, phoneUri));
intent.putExtra(Intent.EXTRA_SHORTCUT_NAME, name);
return intent;
}
/**
* Generates a phone number shortcut icon. Adds an overlay describing the
* type of the phone number, and if there is a photo also adds the call
* action icon.
*
* @param personUri
* The person the phone number belongs to
* @param type
* The type of the phone number
* @param actionResId
* The ID for the action resource
* @return The bitmap for the icon
*/
private Bitmap generatePhoneNumberIcon(Uri personUri, int type, int actionResId) {
final Resources r = getResources();
boolean drawPhoneOverlay = true;
Bitmap photo = People.loadContactPhoto(this, personUri, 0, null);
if (photo == null) { //如果为空
// If there isn't a photo use the generic phone action icon instead
Bitmap phoneIcon = getPhoneActionIcon(r, actionResId);
if (phoneIcon != null) {
photo = phoneIcon; //设置默认的快捷图像
drawPhoneOverlay = false; //联系人没有自定义头像
} else {
return null;
}
}
// Setup the drawing classes
int iconSize = (int) r.getDimension(android.R.dimen.app_icon_size);//获得当前系统快捷方式的图片的限制大小
Bitmap icon = Bitmap.createBitmap(iconSize, iconSize, Bitmap.Config.ARGB_8888); //建立一个空的BItMap
Canvas canvas = new Canvas(icon);//初始化画布 绘制的图像到icon上
// Copy in the photo
Paint photoPaint = new Paint(); //建立画笔
photoPaint.setDither(true); //获取跟清晰的图像采样
photoPaint.setFilterBitmap(true);//过滤一些
Rect src = new Rect(0, 0, photo.getWidth(), photo.getHeight());//创建一个指定的新矩形的坐标
Rect dst = new Rect(0, 0, iconSize, iconSize);//创建一个指定的新矩形的坐标
canvas.drawBitmap(photo, src, dst, photoPaint);//将photo 缩放或则扩大到 dst使用的填充区photoPaint
// Create an overlay for the phone number type 填充手机的快捷方式上的类型
String overlay = null;
switch (type) {
case Phones.TYPE_HOME:
overlay = "H"; //家庭
break;
case Phones.TYPE_MOBILE: //手机
overlay = "M";
break;
case Phones.TYPE_WORK: //工作
overlay = "W";
break;
case Phones.TYPE_PAGER://
overlay = "P";
break;
case Phones.TYPE_OTHER://其他
overlay = "O";
break;
}
if (overlay != null) {
/**
* 以下将学到在已有的图层上添加字 如水印
*/
Paint textPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG);//设置画笔
textPaint.setTextSize(20.0f);//字体大小
textPaint.setTypeface(Typeface.DEFAULT_BOLD);//采用默认的宽度
textPaint.setColor(r.getColor(R.color.textColorIconOverlay));//采用的颜色
textPaint.setShadowLayer(3f, 1, 1, r.getColor(R.color.textColorIconOverlayShadow));//影音的设置
canvas.drawText(overlay, 2, 16, textPaint);//绘制上去 字，开始未知x,y采用那只笔绘制
}
// Draw the phone action icon as an overlay
if (ENABLE_ACTION_ICON_OVERLAYS && drawPhoneOverlay) { //如果查询没有查询到图片 采用默认的也没有 在尝试加载默认的
Bitmap phoneIcon = getPhoneActionIcon(r, actionResId);
if (phoneIcon != null) {
src.set(0, 0, phoneIcon.getWidth(), phoneIcon.getHeight());
int iconWidth = icon.getWidth();
dst.set(iconWidth - 20, -1, iconWidth, 19);
canvas.drawBitmap(phoneIcon, src, dst, photoPaint);
}
}
return icon; //返回
}
/**
* Returns the icon for the phone call action.
*
* @param r
* The resources to load the icon from
* @param resId
* The resource ID to load
* @return the icon for the phone call action
*/
private Bitmap getPhoneActionIcon(Resources r, int resId) {
Drawable phoneIcon = r.getDrawable(resId);
if (phoneIcon instanceof BitmapDrawable) {
BitmapDrawable bd = (BitmapDrawable) phoneIcon;
return bd.getBitmap();
} else {
return null;
}
}
}