问题描述
我想提出的android游戏,使用视图class.i我不使用layout.all我的图片与canvas.Now我的问题是拉我不能给一个位图
可触摸事件,你知道。我正在尝试动态我的看法类添加到的ImageView
使用可触摸event.why我尝试动态地添加ImageView的?因为我没有使用
layout.but我可以not.is有任何机构帮助?
这里是我的code:
包com.example.poolmaster;进口的java.util.ArrayList;进口android.annotation.Sup pressLint;
进口android.app.Activity;
进口android.content.Context;
进口android.graphics.Bitmap;
进口android.graphics.BitmapFactory;
进口android.graphics.Canvas;
进口android.graphics.Matrix;
进口android.graphics.drawable.BitmapDrawable;
进口android.graphics.drawable.Drawable;
进口android.os.Bundle;
进口android.util.DisplayMetrics;
进口android.view.Gravity;
进口android.view.Menu;
进口android.view.MotionEvent;
进口android.view.View;
进口android.view.View.OnTouchListener;
进口android.widget.ImageView;
进口android.widget.LinearLayout;公共类MainActivity延伸活动{
私人诠释cuePosx,cuePosy;
INT cueHeight,cueWeight;
双rotatingAngle;
INT高度;
INT wwidth;
INT cueHeight2,cueWeight2;
位图表格,贴,提高;
ImageView的按钮=新ImageView的(本);
@覆盖
公共无效的onCreate(捆绑savedInstanceState){
super.onCreate(savedInstanceState);
rotatingAngle = 0;
DisplayMetrics displaymetrics =新DisplayMetrics();
。getWindowManager()getDefaultDisplay()getMetrics(displaymetrics)。
高度= displaymetrics.heightPixels;
wwidth = displaymetrics.widthPixels;
cueHeight2 =身高/ 2;
cueWeight2 = wwidth / 2;
的System.out.println(************);
的System.out.println(高度+高);
的System.out.println(权重+ wwidth);
的System.out.println(************);
//设置通用布局参数
//这个修改 游戏的自定义=新的游戏(本);
的setContentView(自定义);
//的setContentView(R.layout.activity_main);
} @覆盖
公共布尔onCreateOptionsMenu(菜单菜单){
。getMenuInflater()膨胀(R.menu.activity_main,菜单);
返回true;
}
@覆盖
公共布尔onTouchEvent(MotionEvent EV){
如果(ev.getAction()== MotionEvent.ACTION_MOVE){
// cuePosy + = 10;
//System.out.println(\"xCORDİNATES!!!!+ ev.getX());
//System.out.println(\"yCORDİNATES!!!!+ ev.getY());
rotatingAngle = getAngle(ev.getX(),ev.getY());
的System.out.println(角度+ rotatingAngle); }
如果(ev.getAction()== MotionEvent.ACTION_DOWN){
的System.out.println(******************操作下****************);
// cueHeight2 + = 10;
// cueWeight2 + = 20;
// cuePosy = 320;
}
如果(ev.getAction()== MotionEvent.ACTION_UP){
的System.out.println(******************操作下****************);
// cueHeight2- = 10;
// cueWeight2- = 20;
// cuePosy = 320;
}
返回true;
}
私人双getAngle(双xTouch,双yTouch){
双THETA; THETA = Math.toDegrees(Math.atan2(高度/ 2-yTouch,xTouch-wwidth / 2)); 返回THETA; } 公共类游戏扩展视图{ 公共游戏(上下文的背景下){
超级(上下文);
// TODO自动生成构造函数存根
表= BitmapFactory.de codeResource(getResources(),R.drawable.bg);
表= Bitmap.createScaledBitmap(表,wwidth,高度,真);
坚持= BitmapFactory.de codeResource(getResources(),R.drawable.stick); 募集= BitmapFactory.de codeResource(getResources(),R.drawable.raise);
cueHeight = stick.getHeight();
的System.out.println(ıstaka+ cueHeight);
cueWeight = stick.getWidth();
cuePosx = wwidth / 2;
cuePosy =高度cueHeight-180;
}
@燮pressLint({DrawAllocation,DrawAllocation})
@覆盖
公共无效的onDraw(帆布油画){
super.onDraw(画布); 字模=新的Matrix();
matrix.setTranslate(cueWeight2,cueHeight2);
matrix.postRotate((浮点)rotatingAngle,cueWeight2,cueHeight2); //逆时针90度 //使用矩阵变换的结果创建从原来的新位图
位图rotatedBitmap = Bitmap.createBitmap(棒,0,0,坚持.getWidth(),坚持.getHeight(),基质,FALSE);
canvas.save(); //保存画布的位置。
canvas.restore(); //旋转画布。
canvas.drawBitmap(表,0,0,NULL); //绘制旋转画布上球。
canvas.drawBitmap(棒,矩阵,NULL);
canvas.drawBitmap(提高,0,0,NULL);
无效();
} }
}
这对于Activity类扩展添加的ImageView到布局
的LinearLayout为1L = findViewById(R.id.xmlfile_layout_id); ImageView的imgView =新ImageView的(上下文); imgView.setVisibility(View.VISIBLE);
lL.addView(imgView);
这是添加的ImageView到View类扩展画布
首先,你可以不使用帆布放置任何的ImageView,编辑文本或按钮。相反,你必须把它画。因此,创建一个自定义布局,并绘制布局帆布
试试这个,它可以帮助你。在的onDraw(..)
的LinearLayout为1L =新的LinearLayout(背景); ImageView的imgView =新ImageView的(上下文); imgView.setVisibility(View.VISIBLE);
lL.addView(imgView); lL.measure(canvas.getWidth(),canvas.getHeight());
lL.layout(0,0,canvas.getWidth(),canvas.getHeight()); //放置在特定坐标编辑文本:
//canvas.translate(0,0);
layout.draw(画布);
和看看另外一个例子:
它给添加视图的另一种方式。
i am making android game which use view class.i am not using layout.all my images is drawing with canvas.Now my problem is i cannot give a bitmap
touchable event as you know.i am trying to add imageview dynamically to my view class to
use touchable event.why i try to add imageview dynamically?Because i am not using
layout.but i could not.is there any body to help?
here is my code:
package com.example.poolmaster;
import java.util.ArrayList;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.view.Gravity;
import android.view.Menu;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.ImageView;
import android.widget.LinearLayout;
public class MainActivity extends Activity {
private int cuePosx,cuePosy;
int cueHeight,cueWeight;
double rotatingAngle;
int height;
int wwidth;
int cueHeight2,cueWeight2;
Bitmap table,stick,raise;
ImageView button = new ImageView(this);
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
rotatingAngle=0;
DisplayMetrics displaymetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
height = displaymetrics.heightPixels;
wwidth = displaymetrics.widthPixels;
cueHeight2=height/2;
cueWeight2=wwidth/2;
System.out.println("**************************************");
System.out.println("height " +height);
System.out.println("weight" +wwidth);
System.out.println("**************************************");
// Set generic layout parameters
// Modify this
GamePlay custom = new GamePlay(this);
setContentView(custom);
// setContentView(R.layout.activity_main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
if(ev.getAction() == MotionEvent.ACTION_MOVE){
//cuePosy+=10;
//System.out.println("xCORDİNATES!!!! " +ev.getX());
//System.out.println("yCORDİNATES!!!! " +ev.getY());
rotatingAngle=getAngle(ev.getX(), ev.getY());
System.out.println("Angle " +rotatingAngle);
}
if(ev.getAction()==MotionEvent.ACTION_DOWN){
System.out.println("****************** ACTİON DOWN ****************");
//cueHeight2+=10;
//cueWeight2+=20;
//cuePosy=320;
}
if(ev.getAction()==MotionEvent.ACTION_UP){
System.out.println("****************** ACTİON DOWN ****************");
//cueHeight2-=10;
//cueWeight2-=20;
//cuePosy=320;
}
return true;
}
private double getAngle(double xTouch, double yTouch) {
double theta;
theta= Math.toDegrees( Math.atan2( height/2-yTouch , xTouch-wwidth/2) );
return theta;
}
public class GamePlay extends View{
public GamePlay(Context context) {
super(context);
// TODO Auto-generated constructor stub
table=BitmapFactory.decodeResource(getResources(), R.drawable.bg);
table= Bitmap.createScaledBitmap(table, wwidth, height, true);
stick=BitmapFactory.decodeResource(getResources(), R.drawable.stick);
raise=BitmapFactory.decodeResource(getResources(), R.drawable.raise);
cueHeight=stick.getHeight();
System.out.println("ıstaka " +cueHeight);
cueWeight=stick.getWidth();
cuePosx=wwidth/2;
cuePosy=height-cueHeight-180;
}
@SuppressLint({ "DrawAllocation", "DrawAllocation" })
@Override
public void onDraw(Canvas canvas) {
super.onDraw(canvas);
Matrix matrix = new Matrix();
matrix.setTranslate(cueWeight2, cueHeight2);
matrix.postRotate((float)rotatingAngle,cueWeight2, cueHeight2); // anti-clockwise by 90 degrees
// create a new bitmap from the original using the matrix to transform the result
Bitmap rotatedBitmap = Bitmap.createBitmap(stick , 0, 0, stick .getWidth(), stick .getHeight(), matrix,false);
canvas.save(); //Save the position of the canvas.
canvas.restore();
//Rotate the canvas.
canvas.drawBitmap(table, 0, 0, null); //Draw the ball on the rotated canvas.
canvas.drawBitmap(stick, matrix,null);
canvas.drawBitmap(raise, 0, 0,null);
invalidate();
}
}
}
This is for adding imageview to a layout where Activity class is extended
LinearLayout lL = findViewById(R.id.xmlfile_layout_id);
ImageView imgView = new ImageView(context);
imgView.setVisibility(View.VISIBLE);
lL.addView(imgView);
This is for adding imageview to a canvas where View class is extended
Initially, you cannot place any imageview, edit text or buttons using canvas. Instead, you have to draw it. So create a custom layout and draw that layout with canvas
Try this, It might help you. in onDraw(..)
LinearLayout lL = new LinearLayout(context);
ImageView imgView = new ImageView(context);
imgView.setVisibility(View.VISIBLE);
lL.addView(imgView);
lL.measure(canvas.getWidth(), canvas.getHeight());
lL.layout(0, 0, canvas.getWidth(), canvas.getHeight());
// placing the edit text at specific co-ordinates:
//canvas.translate(0, 0);
layout.draw(canvas);
And take a look at this another example : Click here
It gives another way of adding views
这篇关于添加动态ImageView的查看的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!