package com.jone.app.ui.floatview;
import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.WindowManager;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.jone.app.R;
import com.jone.app.utils.MyWindowManager;
import java.lang.reflect.Field;
/**
* Created by jone_admin on 2014/3/27.
*/
public class FloatWindowSmallView extends LinearLayout {
/**
* 记录小悬浮窗的宽度
*/
public static int viewWidth;
/**
* 记录小悬浮窗的高度
*/
public static int viewHeight;
/**
* 记录系统状态栏的高度
*/
private static int statusBarHeight;
/**
* 用于更新小悬浮窗的位置
*/
private WindowManager windowManager;
/**
* 小悬浮窗的参数
*/
private WindowManager.LayoutParams mParams;
/**
* 记录当前手指位置在屏幕上的横坐标值
*/
private float xInScreen;
/**
* 记录当前手指位置在屏幕上的纵坐标值
*/
private float yInScreen;
/**
* 记录手指按下时在屏幕上的横坐标的值
*/
private float xDownInScreen;
/**
* 记录手指按下时在屏幕上的纵坐标的值
*/
private float yDownInScreen;
/**
* 记录手指按下时在小悬浮窗的View上的横坐标的值
*/
private float xInView;
/**
* 记录手指按下时在小悬浮窗的View上的纵坐标的值
*/
private float yInView;
public FloatWindowSmallView(Context context) {
super(context);
windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
LayoutInflater.from(context).inflate(R.layout.layout_float, this);
View view = findViewById(R.id.small_window_layout);
viewWidth = view.getLayoutParams().width;
viewHeight = view.getLayoutParams().height;
TextView percentView = (TextView) findViewById(R.id.percent);
percentView.setText(MyWindowManager.getUsedPercentValue(context));
}
@Override
public boolean onTouchEvent(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
// 手指按下时记录必要数据,纵坐标的值都需要减去状态栏高度
xInView = event.getX();
yInView = event.getY();
xDownInScreen = event.getRawX();
yDownInScreen = event.getRawY() - getStatusBarHeight();
xInScreen = event.getRawX();
yInScreen = event.getRawY() - getStatusBarHeight();
break;
case MotionEvent.ACTION_MOVE:
xInScreen = event.getRawX();
yInScreen = event.getRawY() - getStatusBarHeight();
// 手指移动的时候更新小悬浮窗的位置
updateViewPosition();
break;
case MotionEvent.ACTION_UP:
// 如果手指离开屏幕时,xDownInScreen和xInScreen相等,且yDownInScreen和yInScreen相等,则视为触发了单击事件。
if (xDownInScreen == xInScreen && yDownInScreen == yInScreen) {
openBigWindow();
}
break;
default:
break;
}
return true;
}
/**
* 将小悬浮窗的参数传入,用于更新小悬浮窗的位置。
*
* @param params 小悬浮窗的参数
*/
public void setParams(WindowManager.LayoutParams params) {
mParams = params;
}
/**
* 更新小悬浮窗在屏幕中的位置。
*/
private void updateViewPosition() {
mParams.x = (int) (xInScreen - xInView);
mParams.y = (int) (yInScreen - yInView);
try{
windowManager.updateViewLayout(this, mParams);
}catch (Exception e){
Log.e("APPJone", e.getMessage());
}
}
/**
* 打开大悬浮窗,同时关闭小悬浮窗。
*/
private void openBigWindow() {
MyWindowManager.createBigWindow(getContext());
MyWindowManager.removeSmallWindow(getContext());
}
/**
* 用于获取状态栏的高度。
*
* @return 返回状态栏高度的像素值。
*/
private int getStatusBarHeight() {
if (statusBarHeight == 0) {
try {
Class<?> c = Class.forName("com.android.internal.R$dimen");
Object o = c.newInstance();
Field field = c.getField("status_bar_height");
int x = (Integer) field.get(o);
statusBarHeight = getResources().getDimensionPixelSize(x);
} catch (Exception e) {
e.printStackTrace();
}
}
return statusBarHeight;
}
}