锁屏 Launcher 输入法 应用程序开发
ICS lockscreen ：http://blog.chinaunix.net/uid-26153587-id-3202374.html
/*
* Copyright (C) 2008 The Android Open Source Project
*
* 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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.ExpandableListActivity;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.content.res.ColorStateList;
import android.database.ContentObserver;
import android.database.Cursor;
import android.database.sqlite.SQLiteException;
import android.telephony.PhoneStateListener;
import android.telephony.ServiceState;
import android.telephony.TelephonyManager;
import android.text.format.DateFormat;
import android.view.GestureDetector.OnGestureListener;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.*;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Paint.FontMetrics;
import android.graphics.Paint.Style;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.util.DisplayMetrics;
import android.util.Log;
import android.media.AudioManager;
import android.os.BatteryManager;
import android.os.Handler;
import android.os.Message;
import android.os.SystemClock;
import java.util.Date;
import java.io.File;
/**
* The screen within {@link LockPatternKeyguardView} that shows general
* information about the device depending on its state, and how to get past it,
* as applicable.
*/
class LockScreen extends LinearLayout implements View.OnTouchListener,
OnGestureListener {
private String TAG = "yzy";
private float fingx;
private float fingy;
private float bigCircleX ;
private float bigCircleY ;
private float bigCircleR ;
public LockScreen(Context context, float widthPixels) {
super(context);
setWillNotDraw(false);
this.bigCircleX = widthPixels/2;
this.bigCircleY = 500;
this.bigCircleR = 200;
this.setOnTouchListener(this);
}
@Override
public void onDraw(Canvas canvas) {
super.onDraw(canvas);
Log.d("yzy", "ondraw.......");
// 创建画笔
Paint p = new Paint();
p.setColor(Color.RED);// 设置红色
p.setStyle(Style.STROKE);
p.setAntiAlias(true);// 设置画笔的锯齿效果。 true是去除，大家一看效果就明白了
canvas.drawCircle(fingx, fingy, 100, p);// 大圆
p.setColor(Color.WHITE);// 设置红色
canvas.drawCircle(bigCircleX, bigCircleY, bigCircleR, p);
}
public boolean dispatchTouchEvent(MotionEvent ev) {
// 这里必须返回 super.dispatchTouchEvent(ev); 滑动得时候才会多次触发ACTION_MOVE
return super.dispatchTouchEvent(ev);
// return true;
// return false;
}
public boolean onInterceptTouchEvent(MotionEvent ev) {
super.onTouchEvent(ev);
int action = ev.getAction();
switch (action) {
case MotionEvent.ACTION_MOVE:
//现在代码没有走这里 而是走得下面得onToucEvent
fingx = ev.getX();
fingy = ev.getY() < 500 ? 500 : ev.getY();
Log.d("yzy", "fingx =" + fingx);
Log.d("yzy", "fingy =" + fingy);
Log.d(TAG, "---onTouchEvent action:ACTION_MOVE");
break;
case MotionEvent.ACTION_DOWN:
Log.d(TAG, "---onTouchEvent action:ACTION_DOWN");
break;
case MotionEvent.ACTION_UP:
Log.d(TAG, "---onTouchEvent action:ACTION_UP");
break;
case MotionEvent.ACTION_CANCEL:
Log.d(TAG, "---onTouchEvent action:ACTION_CANCEL");
break;
}
return super.onInterceptTouchEvent(ev);
}
public boolean onTouchEvent(MotionEvent ev) {
super.onTouchEvent(ev);
int action = ev.getAction();
switch (action) {
case MotionEvent.ACTION_MOVE:
fingx = ev.getX();
fingy = ev.getY();
if(getDistance(this.fingx,this.fingy,this.bigCircleX,this.bigCircleY)<=this.bigCircleR){
Log.d("yzy", "fingx =" + fingx);
Log.d("yzy", "fingy =" + fingy);
this.invalidate();
}
break;
case MotionEvent.ACTION_DOWN:
Log.d(TAG, "---onTouchEvent action:ACTION_DOWN");
break;
case MotionEvent.ACTION_UP:
float x = ev.getX();
float y = ev.getY();
if(isTriggered(x,y)){
}else{
this.fingx = 240;this.fingy = 600;
this.invalidate();
}
Log.d(TAG, "---onTouchEvent action:ACTION_UP");
break;
case MotionEvent.ACTION_CANCEL:
Log.d(TAG, "---onTouchEvent action:ACTION_CANCEL");
break;
}
return true;
}
private boolean isTriggered(float x, float y) {
// TODO Auto-generated method stub
return false;
}
private double getDistance(float fingx2, float fingy2, float bigCircleX2, float bigCircleY2) {
double x = StrictMath.pow(fingx2-bigCircleX2, 2) + StrictMath.pow(fingy2-bigCircleY2, 2);
return StrictMath.pow(x, 0.5);
}
// --------------------------------------------------
@Override
public boolean onDown(MotionEvent e) {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
// TODO Auto-generated method stub
return false;
}
@Override
public void onLongPress(MotionEvent e) {
// TODO Auto-generated method stub
}
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
// TODO Auto-generated method stub
// fingx = ev.getX();
// fingy = ev.getY();
//this.invalidate();
//Log.d(TAG, "---onTouchEvent action:ACTION_MOVE");
return true;
}
@Override
public void onShowPress(MotionEvent e) {
// TODO Auto-generated method stub
}
@Override
public boolean onSingleTapUp(MotionEvent e) {
// TODO Auto-generated method stub
return false;
}
// --------------------------------------------------
@Override
public boolean onTouch(View v, MotionEvent event) {
Log.d("yzy", "touch.........");
// TODO Auto-generated method stub
return false;
}
}