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Android性能优化---布局优化

2013-07-16 09:38 471 查看

Android性能优化---布局优化

分类： android2013-06-18
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性能优化布局

我们从事Android开发编写布局的时候大多数是使用XML来布局，这给我们带来了方便性，这样操作可以布局界面的代码和逻辑控制的Java代码分离出来，使程序的结构更加清晰、明了。特别的复杂的布局，但是这样操作也同样带来了另一些问题，例如屏幕的适应性，大多数Android开发人员都会遇到这个问题，还有一个就是内容问题，如果使用xml布局，Android的虚拟机首先解析xml布局，然后加载内存，如果布局越复杂，那加载的时间越慢，而用java代码布局，可以解决这些问题，不过比xml布局麻烦一点，而且必须运行才能看见结果。下面讲解一个开发过程中的一个例子:

下面是使用xml布局的代码:

[html] view
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<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:background="@drawable/info_back">

<LinearLayout

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_above="@+id/linearRecordLayout">

<RelativeLayout

android:layout_width="wrap_content"

android:layout_height="fill_parent"

android:layout_marginLeft="15dp"

android:layout_marginRight="15dp">



<LinearLayout

android:id="@+id/contronLinearLayout"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:orientation="vertical"

android:layout_alignParentTop="true"

android:layout_marginLeft="20dp">

<RelativeLayout

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:orientation="horizontal"

>

<TextView

android:id="@+id/temp_textview"

android:text="T:"

android:textSize="18sp"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:textColor="#FFFFFF"

/>

<ToggleButton

android:id="@+id/temp_max"

android:layout_width="15dp"

android:layout_height="15dp"

android:textOn=" "

android:textOff=" "

android:layout_toRightOf="@+id/temp_textview"

android:layout_alignParentTop="true"

android:layout_marginTop="5dp"

android:background="@drawable/max"

android:visibility="invisible"

/>

</RelativeLayout>

<TextView

android:id="@+id/humidity_textiew"

android:text="H:"

android:textSize="18sp"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:textColor="#FFFFFF"

android:layout_marginTop="5dp"/>

</LinearLayout>

<LinearLayout

android:id="@+id/BtnControl"

android:layout_width="150dp"

android:layout_height="150dp"

android:orientation="vertical"

android:layout_marginTop="20dp"

android:layout_alignParentBottom="true"

android:layout_marginBottom="35dp"

android:gravity="center_vertical|center_horizontal"

android:background="@drawable/no_control">

<Button

android:id="@+id/up"

android:layout_width="50dp"

android:layout_height="60dp"

android:background="@drawable/kong"/>

<LinearLayout

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:orientation="horizontal">

<Button

android:id="@+id/left"

android:layout_width="80dp"

android:layout_height="50dp"

android:background="@drawable/kong"/>

<Button

android:id="@+id/right"

android:layout_width="80dp"

android:layout_height="50dp"

android:layout_marginLeft="10dp"

android:background="@drawable/kong"

/>

</LinearLayout>

<Button

android:id="@+id/down"

android:layout_width="50dp"

android:layout_height="60dp"

android:background="@drawable/kong"

/>

</LinearLayout>



<LinearLayout

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:orientation="horizontal"

android:layout_alignParentBottom="true"

android:layout_marginBottom="5dp"

android:layout_alignParentLeft="true"

android:layout_marginLeft="0dp">

<Button

android:id="@+id/about_button"

android:layout_width="27dp"

android:layout_height="27dp"

android:background="@drawable/info_off"

android:layout_marginRight="10dp"

/>

<Button

android:id="@+id/webserver"

android:layout_width="27dp"

android:layout_height="27dp"

android:layout_marginRight="10dp"

android:background="@drawable/net_in_off"

/>

<Button

android:id="@+id/apConvertButton"

android:layout_width="27dp"

android:layout_height="27dp"

android:background="@drawable/wifi_switch_off"

/>

</LinearLayout>

</RelativeLayout>

<RelativeLayout

android:id="@+id/camerSurfaceRelativelayout"

android:layout_width="wrap_content"

android:layout_height="wrap_content">

<LinearLayout

android:layout_width="wrap_content"

android:id="@+id/controlAbsoluteLayout"

android:layout_height="fill_parent"

android:gravity="center_vertical|center_horizontal">

<com.pcareroute.surface.CameraSurfaceView

android:id="@+id/car_camera_surfaceview"

android:layout_width="wrap_content"

android:layout_height="fill_parent" />

</LinearLayout>

<RelativeLayout

android:id="@+id/scale_control_linearLayout"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentTop="true"

android:padding="5dip" >

<Button

android:id="@+id/zoom_in_button"

android:layout_width="40dp"

android:layout_height="40dp"

android:layout_marginLeft="3dp"

android:layout_marginTop="3dp"

android:background="@drawable/button_zoom_out_icon" >

</Button>

<LinearLayout

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentRight="true"

android:layout_marginRight="60dp"

android:layout_marginTop="3dp"

>

<ToggleButton

android:textOn=" "

android:textOff=" "

android:id="@+id/record_red"

android:layout_width="18dp"

android:layout_height="18dp"

android:background="@drawable/video_off_led"

android:visibility="invisible"/>

<Chronometer

android:id="@+id/chronometer1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginLeft="7dp"

android:text="Chronometer"

android:visibility="invisible"

/>

</LinearLayout>

<Button

android:layout_alignParentRight="true"

android:id="@+id/zoom_out_button"

android:layout_width="40dp"

android:layout_height="40dp"

android:layout_marginRight="2dp"

android:layout_marginTop="3dp"

android:background="@drawable/button_zoom_in_icon"></Button>

</RelativeLayout>

<LinearLayout

android:id="@+id/RelativeLayoutzoom"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:gravity="center_vertical|center_horizontal"

android:layout_centerHorizontal="true"

android:layout_above="@+id/bottomEmpty"

>

<TextView

android:id="@+id/scale_textView"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:gravity="center_horizontal"

android:shadowColor="#ff000000"

android:shadowDx="2"

android:shadowDy="0"

android:shadowRadius="2"

android:text="100%"

android:textAppearance="?android:attr/textAppearanceMedium"

android:textStyle="bold" />

</LinearLayout>

<LinearLayout

android:id="@+id/bottomEmpty"

android:layout_width="fill_parent"

android:layout_height="18dp"

android:layout_alignParentBottom="true">

</LinearLayout>

</RelativeLayout>

</LinearLayout>







<LinearLayout

android:background="@drawable/button_bar"

android:gravity="center_vertical|center_horizontal"

android:layout_width="fill_parent"

android:layout_height="45dp"

android:id="@+id/linearRecordLayout"

android:layout_alignParentBottom="true">

<ToggleButton

android:id="@+id/send_voice_button"

android:layout_width="40dp"

android:layout_height="40dp"

android:textOn=""

android:textOff=""

android:background="@drawable/talk_off"

android:layout_marginRight="23dip" />

<Button

android:id="@+id/spk_toggle_button"

android:layout_width="40dp"

android:layout_height="40dp"

android:textOn=" "

android:textOff=" "

android:background="@drawable/music_off"

android:layout_marginRight="23dp"

/>

<ToggleButton

android:textOn=" "

android:textOff=" "

android:layout_marginRight="23dp"

android:layout_width="40dp"

android:layout_height="40dp"

android:background="@drawable/video_off"

android:id="@+id/camera_shoot_button"

/>

<ToggleButton

android:background="@drawable/sound_mute"

android:id="@+id/listen_toggle_button"

android:layout_width="40dp"

android:textOn=" "

android:textOff=" "

android:layout_height="40dp"

android:layout_marginRight="23dp" ></ToggleButton>

<Button

android:id="@+id/take_picture_button"

android:layout_width="40dp"

android:layout_height="40dp"

android:layout_marginRight="23dp"

android:background="@drawable/button_take_photo_icon" />

<ToggleButton

android:background="@drawable/ir_off"

android:id="@+id/light_toggle_button"

android:layout_width="40dp"

android:layout_height="40dp"

android:layout_marginRight="23dp"

android:textOn=" "

android:textOff=" " ></ToggleButton>

<Button

android:background="@drawable/share_off"

android:id="@+id/shared"

android:layout_width="40dp"

android:layout_height="40dp"

/>

</LinearLayout>



</RelativeLayout>

直接在Eclipse里面查看的显示效果如下:

在真机上运行效果如下:

进行对比，真机是我们想要的结果，但是之前的编写的效果不对，而且对于不同的屏幕分辨率xml布局编写了三个xml布局来实现适应性。

下面使用java代码来实现布局，使用两个文件一个布局文件，另一个是布局参数文件

布局文件代码如下:

[java] view
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package com.pcareroute;

import com.seuic.pcareroute.AppLog;

import com.seuic.pcareroute.surface.CameraSurface;

import com.seuic.pcareroute.util.PcareRouteParams;

import com.seuic.pcareroute.util.ToolsUnility;

import android.app.Activity;

import android.os.Bundle;

import android.widget.Button;

import android.widget.LinearLayout;

import android.widget.RelativeLayout;

import android.widget.TextView;

import android.widget.ToggleButton;

public class PcareRouteMain extends Activity{

public static final String TAG = "PcareRouteMain";

public PcareRouteMain instance;

PcareRouteParams pRouteParams;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

ToolsUnility.getToolsUnilityInstance(this).noTitleAndStaBar(this); //去掉标题栏和状态栏

instance = this;

pRouteParams = new PcareRouteParams(instance);

AppLog.enableLogging(true);

initLayout();

}

//初始化布局和组件

public void initLayout(){

Parent = new RelativeLayout(getApplicationContext());

Parent.setBackgroundResource(R.drawable.info_back);

BottomInParent = new LinearLayout(getApplicationContext());

BottomInParent.setId(_R.id.bottom_in_parent);

BottomInParent.setBackgroundResource(R.drawable.button_bar);

ButtonInBottom = new ToggleButton[pRouteParams.Bottom_Button_Number];

for (int i = 0; i < pRouteParams.Bottom_Button_Number; i++) {

ButtonInBottom[i] = new ToggleButton(getApplicationContext());

ButtonInBottom[i].setBackgroundResource(ButtonInBottomImage[i]);

ButtonInBottom[i].setTextOff(" ");

ButtonInBottom[i].setTextOn(" ");

ButtonInBottom[i].setText(" ");

BottomInParent.addView(ButtonInBottom[i], pRouteParams.buttonInBottomParams);

}

Parent.addView(BottomInParent, pRouteParams.bottomInParentParams);

LeftInParent = new RelativeLayout(getApplicationContext());

LeftInParent.setId(_R.id.left_in_parent);

BottomInLeft = new LinearLayout(getApplicationContext());

BottomInLeft.setId(_R.id.bottom_in_left);

ButtonInLeft = new Button[pRouteParams.Left_Bottom_Button_Number];

for (int i = 0; i < pRouteParams.Left_Bottom_Button_Number; i++) {

ButtonInLeft[i] = new Button(getApplicationContext());

ButtonInLeft[i].setText(" ");

ButtonInLeft[i].setBackgroundResource(ButtonInLeftImage[i]);

BottomInLeft.addView(ButtonInLeft[i], pRouteParams.Left_Bottom_Button_Params);

}

LeftInParent.addView(BottomInLeft, pRouteParams.bottomInLeftParams);

tempView = new TextView(getApplicationContext());

tempView.setTextSize(pRouteParams.Left_Top_Temp_TextSize);

tempView.setText("T:");

tempView.setId(_R.id.tempview_in_left);

LeftInParent.addView(tempView, pRouteParams.Left_Top_Temp_Params);

tempRoll = new ToggleButton(getApplicationContext());

tempRoll.setBackgroundResource(R.drawable.max);

tempRoll.setText(" ");

tempRoll.setTextOff(" ");

tempRoll.setTextOn(" ");

// tempRoll.setVisibility(View.INVISIBLE);

LeftInParent.addView(tempRoll, pRouteParams.Left_Top_Temp_ToggButton_Params);

humidityView = new TextView(getApplicationContext());

humidityView.setText("H:");

humidityView.setId(_R.id.humiview_in_left);

humidityView.setTextSize(pRouteParams.Left_Top_Temp_TextSize);

LeftInParent.addView(humidityView, pRouteParams.Left_Top_Humi_Params);

CenterInLeft = new RelativeLayout(getApplicationContext());

ControlBtn = new Button[CtrolBtnNumber];

for (int i = 0; i < CtrolBtnNumber; i++) {

ControlBtn[i] = new Button(getApplicationContext());

ControlBtn[i].setBackgroundResource(Btn_Ctrol_In_Left_Image[i]);

CenterInLeft.addView(ControlBtn[i], pRouteParams.Left_Center_CtrolButtons_Params[i]);

}

LeftInParent.addView(CenterInLeft, pRouteParams.Left_Center_CtrolButton_Params);

Parent.addView(LeftInParent, pRouteParams.leftInParentParams);

RightInParent = new RelativeLayout(getApplicationContext());

cameraSurface = new CameraSurface(getApplicationContext());

RightInParent.addView(cameraSurface, pRouteParams.Right_Surface_Params);

ScaleBtn = new Button[ScaleBtnNumber];

for (int i = 0; i < ScaleBtnNumber; i++) {

ScaleBtn[i] = new Button(getApplicationContext());

ScaleBtn[i].setBackgroundResource(Btn_Scale_In_Right_Image[i]);

RightInParent.addView(ScaleBtn[i], pRouteParams.Right_Scale_Button_Params[i]);

}

scaleView = new TextView(getApplicationContext());

scaleView.setText("100%");

scaleView.getPaint().setFakeBoldText(true);//加粗

scaleView.setTextSize(20);

RightInParent.addView(scaleView, pRouteParams.Right_Scale_View_Params);

Parent.addView(RightInParent, pRouteParams.RightInParentParams);

setContentView(Parent, pRouteParams.paramentParams);

}

//声明组件和布局

public RelativeLayout Parent;

public LinearLayout BottomInParent;

public RelativeLayout LeftInParent;

public LinearLayout BottomInLeft;

public RelativeLayout CenterInLeft;

public RelativeLayout RightInParent;

public CameraSurface cameraSurface;

public ToggleButton[] ButtonInBottom;

public Button[] ButtonInLeft;

public Button[] ControlBtn;

public Button[] ScaleBtn;

public TextView tempView, humidityView;

public TextView scaleView;

public ToggleButton tempRoll;

//声明变量

public int[] ButtonInBottomImage = {R.drawable.talk_off, R.drawable.music_off, R.drawable.video_off, R.drawable.sound_mute, R.drawable.button_take_photo_icon, R.drawable.ir_off, R.drawable.share_off};//存储底部button的图片的数组

public int[] ButtonInLeftImage = {R.drawable.info_off, R.drawable.net_in_off, R.drawable.wifi_switch_off};//左边布局的下面三个Button按钮图片

public int[] Btn_Ctrol_In_Left_Image = {R.drawable.left_off, R.drawable.up_off, R.drawable.right_off, R.drawable.down_off};

public int CtrolBtnNumber = 4;

public int[] Btn_Scale_In_Right_Image = {R.drawable.zoom_out, R.drawable.zoom_in};

public int ScaleBtnNumber = 2;

}

在上面的代码中如果我们有多个相同的按钮，则可以使用数组来存储，这样做的好处就是代码更加清晰，而且能够减少冗余代码

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ControlBtn = new Button[CtrolBtnNumber];

for (int i = 0; i < CtrolBtnNumber; i++) {

ControlBtn[i] = new Button(getApplicationContext());

ControlBtn[i].setBackgroundResource(Btn_Ctrol_In_Left_Image[i]);

CenterInLeft.addView(ControlBtn[i], pRouteParams.Left_Center_CtrolButtons_Params[i]);

}

这样的代码，如果我们用平时的一个组件一个名称，就比现在多余CtrolBtnNumber倍的代码冗余。

布局参数代码如下：

[java] view
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package com.seuic.pcareroute.util;

import com.pcareroute._R;

import android.app.Activity;

import android.util.DisplayMetrics;

import android.view.Gravity;

import android.widget.LinearLayout;

import android.widget.RelativeLayout;

public class PcareRouteParams {

public static final String TAG = "PcareRouteParams";

Activity activity;

public PcareRouteParams(Activity activity){

this.activity = activity;

getDisplayMetrics();

initVar();

initLayoutParams();

}

//初始化變量

public void initVar(){

if (screenSize > 5.8) {

Bottom_Button_Width = dip2px(60);

Left_Bottom_Button_Width = dip2px(35);

Bottom_Back_Height = dip2px(70);

Left_Top_TopMarge = dip2px(20);

Left_Top_Temp_LeftMarge = dip2px(40);

Left_Top_Temp_TextSize = 35;

Left_Top_Temp_ToggButton_Width = dip2px(28);

Left_Top_Temp_ToggButton_Height = dip2px(30);

Left_Top_Temp_ToggButton_TopMarge = dip2px(20);

Left_Top_Humi_View_TopMarge = dip2px(5);

Left_Center_CtrolButton_Width = dip2px(300);

Left_Center_CtrolButton_Height = dip2px(250);

Left_Center_CtrolButton_LeftMarge = dip2px(20);

Left_Center_CtrolButton_BottomMarge = dip2px(20);

Right_Surface_LeftMarge = Left_Center_CtrolButton_LeftMarge;

Left_Center_CtrolButton_LeftBtn_Width = dip2px(135);

Left_Center_CtrolButton_LeftBtn_Height = dip2px(90);

Left_Center_CtrolButton_UpBtn_Width = dip2px(100);

Left_Center_CtrolButton_UpBtn_Height = dip2px(135);

Right_Scale_Button_Width = dip2px(50);

Right_Scale_Button_Marge = dip2px(7);

Right_Scale_View_BottomMarge = dip2px(40);

}else if(screenSize < 3.8){

Bottom_Button_Width = dip2px(35);

Left_Bottom_Button_Width = dip2px(18);

Bottom_Back_Height = dip2px(35);

Left_Top_TopMarge = dip2px(0);

Left_Top_Temp_LeftMarge = dip2px(10);

Left_Top_Temp_TextSize = 18;

Left_Top_Temp_ToggButton_Width = dip2px(15);

Left_Top_Temp_ToggButton_Height = dip2px(15);

Left_Top_Temp_ToggButton_TopMarge = dip2px(5);

Left_Top_Humi_View_TopMarge = dip2px(3);

Left_Center_CtrolButton_Width = dip2px(120);

Left_Center_CtrolButton_Height = dip2px(120);

Left_Center_CtrolButton_LeftMarge = dip2px(20);

Left_Center_CtrolButton_BottomMarge = dip2px(5);

Right_Surface_LeftMarge = Left_Center_CtrolButton_LeftMarge;

Left_Center_CtrolButton_LeftBtn_Width = dip2px(40);

Left_Center_CtrolButton_LeftBtn_Height = dip2px(30);

Left_Center_CtrolButton_UpBtn_Width = dip2px(30);

Left_Center_CtrolButton_UpBtn_Height = dip2px(40);

Right_Scale_Button_Width = dip2px(30);

Right_Scale_Button_Marge = dip2px(3);

Right_Scale_View_BottomMarge = dip2px(15);

}else {

Bottom_Button_Width = dip2px(40);

Left_Bottom_Button_Width = dip2px(27);

Bottom_Back_Height = dip2px(45);

Left_Top_TopMarge = dip2px(0);

Left_Top_Temp_LeftMarge = dip2px(20);

Left_Top_Temp_TextSize = 18;

Left_Top_Temp_ToggButton_Width = dip2px(15);

Left_Top_Temp_ToggButton_Height = dip2px(15);

Left_Top_Temp_ToggButton_TopMarge = dip2px(5);

Left_Top_Humi_View_TopMarge = dip2px(5);

Left_Center_CtrolButton_Width = dip2px(150);

Left_Center_CtrolButton_Height = dip2px(150);

Left_Center_CtrolButton_LeftMarge = dip2px(20);

Left_Center_CtrolButton_BottomMarge = dip2px(10);

Right_Surface_LeftMarge = Left_Center_CtrolButton_LeftMarge;

Left_Center_CtrolButton_LeftBtn_Width = dip2px(80);

Left_Center_CtrolButton_LeftBtn_Height = dip2px(50);

Left_Center_CtrolButton_UpBtn_Width = dip2px(50);

Left_Center_CtrolButton_UpBtn_Height = dip2px(60);

Right_Scale_Button_Width = dip2px(40);

Right_Scale_Button_Marge = dip2px(3);

Right_Scale_View_BottomMarge = dip2px(18);

}

Left_Bottom_Button_LeftMarge = dip2px(10);

BottomInLeft_BottomMarge = dip2px(5);

}

public int dip2px(float dpValue) {

return (int)(dpValue * scale + 0.5f);

}

//获取屏幕的宽度，高度和密度以及dp / px

public void getDisplayMetrics() {

DisplayMetrics dm = new DisplayMetrics();

dm = activity.getApplicationContext().getResources().getDisplayMetrics();

Screen_width = dm.widthPixels;

Screen_height = dm.heightPixels;

scale = activity.getResources().getDisplayMetrics().density;

density = dm.density;

double bb = Math.sqrt(Math.pow(Screen_width, 2)+ Math.pow(Screen_height, 2));

screenSize = bb / (160 * dm.density);

}

//初始化布局参数

public void initLayoutParams(){

paramentParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT);

bottomInParentParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, Bottom_Back_Height);

bottomInParentParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);

buttonInBottomParams = new LinearLayout.LayoutParams(Bottom_Button_Width, Bottom_Button_Width);

buttonInBottomParams.gravity = Gravity.CENTER_VERTICAL;

//底部包含组件布局参数

int jiange = (Screen_width - Bottom_Button_Width * Bottom_Button_Number)/(Bottom_Button_Number + 1);

buttonInBottomParams.leftMargin = jiange;

leftInParentParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.MATCH_PARENT);

leftInParentParams.addRule(RelativeLayout.ABOVE, _R.id.bottom_in_parent);

bottomInLeftParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT,RelativeLayout.LayoutParams.WRAP_CONTENT);

bottomInLeftParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);

bottomInLeftParams.bottomMargin = BottomInLeft_BottomMarge;

Left_Bottom_Button_Params = new LinearLayout.LayoutParams(Left_Bottom_Button_Width, Left_Bottom_Button_Width);

Left_Bottom_Button_Params.leftMargin = Left_Bottom_Button_LeftMarge;

Left_Bottom_Button_Params.gravity = Gravity.CENTER_VERTICAL;

Left_Top_Temp_Params = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);

Left_Top_Temp_Params.topMargin = Left_Top_TopMarge;

Left_Top_Temp_Params.leftMargin = Left_Top_Temp_LeftMarge;

Left_Top_Temp_ToggButton_Params = new RelativeLayout.LayoutParams(Left_Top_Temp_ToggButton_Width, Left_Top_Temp_ToggButton_Height);

Left_Top_Temp_ToggButton_Params.addRule(RelativeLayout.RIGHT_OF, _R.id.tempview_in_left);

Left_Top_Temp_ToggButton_Params.topMargin = Left_Top_Temp_ToggButton_TopMarge;

Left_Top_Humi_Params = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);

Left_Top_Humi_Params.addRule(RelativeLayout.BELOW, _R.id.tempview_in_left);

Left_Top_Humi_Params.topMargin = Left_Top_Humi_View_TopMarge;

Left_Top_Humi_Params.addRule(RelativeLayout.ALIGN_LEFT, _R.id.tempview_in_left);

Left_Center_CtrolButton_Params = new RelativeLayout.LayoutParams(Left_Center_CtrolButton_Width, Left_Center_CtrolButton_Height);

Left_Center_CtrolButton_Params.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);

Left_Center_CtrolButton_Params.bottomMargin = BottomInLeft_BottomMarge + Left_Center_CtrolButton_BottomMarge + Left_Bottom_Button_Width;

Left_Center_CtrolButton_Params.leftMargin = Left_Center_CtrolButton_LeftMarge;

// Left_Center_CtrolButton_Params.rightMargin = Left_Center_CtrolButton_LeftMarge;

Left_Center_CtrolButtons_Params = new RelativeLayout.LayoutParams[4];

Left_Center_CtrolButtons_Params[0] = new RelativeLayout.LayoutParams(Left_Center_CtrolButton_UpBtn_Height, Left_Center_CtrolButton_UpBtn_Width);

Left_Center_CtrolButtons_Params[0].addRule(RelativeLayout.CENTER_VERTICAL);

Left_Center_CtrolButtons_Params[1] = new RelativeLayout.LayoutParams(Left_Center_CtrolButton_UpBtn_Width, Left_Center_CtrolButton_UpBtn_Height);

Left_Center_CtrolButtons_Params[1].addRule(RelativeLayout.CENTER_HORIZONTAL);

Left_Center_CtrolButtons_Params[2] = new RelativeLayout.LayoutParams(Left_Center_CtrolButton_UpBtn_Height, Left_Center_CtrolButton_UpBtn_Width);

Left_Center_CtrolButtons_Params[2].addRule(RelativeLayout.ALIGN_PARENT_RIGHT);

Left_Center_CtrolButtons_Params[2].addRule(RelativeLayout.CENTER_VERTICAL);

Left_Center_CtrolButtons_Params[3] = new RelativeLayout.LayoutParams(Left_Center_CtrolButton_UpBtn_Width, Left_Center_CtrolButton_UpBtn_Height);

Left_Center_CtrolButtons_Params[3].addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);

Left_Center_CtrolButtons_Params[3].addRule(RelativeLayout.CENTER_HORIZONTAL);

RightInParentParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT);

RightInParentParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);

RightInParentParams.addRule(RelativeLayout.RIGHT_OF, _R.id.left_in_parent);

RightInParentParams.addRule(RelativeLayout.ABOVE, _R.id.bottom_in_parent);

RightInParentParams.leftMargin = Right_Surface_LeftMarge;

Right_Surface_Params = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT);

Right_Scale_Button_Params = new RelativeLayout.LayoutParams[2];

Right_Scale_Button_Params[0] = new RelativeLayout.LayoutParams(Right_Scale_Button_Width, Right_Scale_Button_Width);

Right_Scale_Button_Params[0].leftMargin = Right_Scale_Button_Marge;

Right_Scale_Button_Params[0].topMargin = Right_Scale_Button_Marge;

Right_Scale_Button_Params[1] = new RelativeLayout.LayoutParams(Right_Scale_Button_Width, Right_Scale_Button_Width);

Right_Scale_Button_Params[1].addRule(RelativeLayout.ALIGN_PARENT_RIGHT);

Right_Scale_Button_Params[1].rightMargin = Right_Scale_Button_Marge;

Right_Scale_Button_Params[1].topMargin = Right_Scale_Button_Marge;

Right_Scale_View_Params = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);

Right_Scale_View_Params.addRule(RelativeLayout.CENTER_HORIZONTAL);

Right_Scale_View_Params.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);

Right_Scale_View_Params.bottomMargin = Right_Scale_View_BottomMarge;

}

//声明布局和组件

public RelativeLayout.LayoutParams paramentParams;

public RelativeLayout.LayoutParams bottomInParentParams;

public LinearLayout.LayoutParams buttonInBottomParams;

public RelativeLayout.LayoutParams leftInParentParams;

public RelativeLayout.LayoutParams bottomInLeftParams;

public LinearLayout.LayoutParams Left_Bottom_Button_Params;

public RelativeLayout.LayoutParams topInLeftParams;

public RelativeLayout.LayoutParams Left_Top_Temp_Params;

public RelativeLayout.LayoutParams Left_Top_Temp_ToggButton_Params;

public RelativeLayout.LayoutParams Left_Top_Humi_Params;

public RelativeLayout.LayoutParams Left_Center_CtrolButton_Params;

public RelativeLayout.LayoutParams[] Left_Center_CtrolButtons_Params;//左上右下

public RelativeLayout.LayoutParams RightInParentParams;

public RelativeLayout.LayoutParams Right_Surface_Params;

public RelativeLayout.LayoutParams[] Right_Scale_Button_Params;//大小

public RelativeLayout.LayoutParams Right_Scale_View_Params;

//声明变量

public float scale;//dp -- px

public double screenSize;

public float density;

public int Screen_width;

public int Screen_height;

public int Bottom_Button_Width = 40;//dp

public int Bottom_Back_Height = 5;//dp

public int Bottom_Button_Number = 7;

public int Left_Bottom_Button_Width = 27;//dp

public int BottomInLeft_BottomMarge = 5;//5dp

public int Left_Bottom_Button_LeftMarge = 10;//dp

public int Left_Bottom_Button_Number = 3;

public int Left_Top_TopMarge = 5;

public int Left_Top_Temp_LeftMarge = 5;

public int Left_Top_Temp_TextSize = 18;

public int Left_Top_Temp_ToggButton_Width = 15;

public int Left_Top_Temp_ToggButton_Height = 15;

public int Left_Top_Temp_ToggButton_TopMarge = 5;

public int Left_Top_Humi_View_TopMarge = 5;

public int Left_Center_CtrolButton_Width = 150;

public int Left_Center_CtrolButton_Height = 150;

public int Left_Center_CtrolButton_LeftMarge = 20;

public int Left_Center_CtrolButton_BottomMarge = 20;

public int Right_Surface_LeftMarge = 5;

public int Left_Center_CtrolButton_LeftBtn_Width = 80;

public int Left_Center_CtrolButton_LeftBtn_Height = 50;

public int Left_Center_CtrolButton_UpBtn_Width = 50;

public int Left_Center_CtrolButton_UpBtn_Height = 60;

public int Right_Scale_Button_Width = 20;

public int Right_Scale_Button_Marge = 3;

public int Right_Scale_View_BottomMarge = 18;

}

真机的显示效果如下：

两者虽然在真机上的效果差不多，但是实际是两种不同的实现方式。

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