gpt4 book ai didi

android - 使用加速度计移动对象

转载 作者:行者123 更新时间:2023-11-29 17:48:42 25 4
gpt4 key购买 nike

你好 :) 我创建了一个上面有球的黄色 Canvas ,现在我正在尝试移动球,但我不知道如何移动,这是我第一次使用加速度计,也是我第一次使用canvas and draw..所以你能帮我移动它吗?

到目前为止,这是我的代码:

     package com.example.theball;

import android.support.v4.widget.DrawerLayout.LayoutParams;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.hardware.SensorEvent;
import android.os.Bundle;
import android.view.Display;
import android.widget.ImageView;
import android.widget.RelativeLayout;

public class MainActivity extends Activity {
private int c = Color.YELLOW;
private Canvas g;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_main);
draw();
}
@SuppressWarnings("deprecation")
public void draw ()
{
Display display = getWindowManager().getDefaultDisplay();
int width = display.getHeight();
int height = display.getWidth();
Bitmap bitmap = Bitmap.createBitmap(width, height, Config.RGB_565);
g = new Canvas(bitmap);
g.drawColor(c);
Paint paint = new Paint();
paint.setColor(Color.BLACK);
g.drawCircle(50, 10, 25, paint);
ImageView imageView = new ImageView(this);
imageView.setImageBitmap(bitmap);
RelativeLayout layout = new RelativeLayout(this);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT);
params.addRule(RelativeLayout.CENTER_IN_PARENT);
layout.addView(imageView, params);
layout.setBackgroundColor(Color.BLACK);
setContentView(layout);
}
public void onSensorChanged(SensorEvent event)
{

}

}

最佳答案

已解决:这是新代码,感谢来自 stackoverflow 的人:

    package com.example.theball;

import android.app.Activity;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.drawable.ShapeDrawable;
import android.graphics.drawable.shapes.OvalShape;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.view.Menu;
import android.widget.ImageView;

@SuppressWarnings("deprecation") public class MainActivity extends Activity implements SensorEventListener {
private SensorManager sensorManager;
private Sensor accelerometer;
private long lastUpdate;

AnimatedView animatedView = null;
ShapeDrawable mDrawable = new ShapeDrawable();
public static int x;
public static int y;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// setContentView(R.layout.activity_main);

sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
accelerometer = sensorManager
.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
lastUpdate = System.currentTimeMillis();

animatedView = new AnimatedView(this);
setContentView(animatedView);
}

@Override
protected void onResume() {
super.onResume();
sensorManager.registerListener(this, accelerometer,
SensorManager.SENSOR_DELAY_GAME);
}

@Override
protected void onPause() {
super.onPause();
sensorManager.unregisterListener(this);
}


@Override
public void onAccuracyChanged(Sensor arg0, int arg1) {
// TODO Auto-generated method stub

}

@Override
public void onSensorChanged(SensorEvent event) {
// TODO Auto-generated method stub
if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {

x -= (int) event.values[0];
y += (int) event.values[1];

}
}

public class AnimatedView extends ImageView {

static final int width = 50;
static final int height = 50;

public AnimatedView(Context context) {
super(context);
// TODO Auto-generated constructor stub

mDrawable = new ShapeDrawable(new OvalShape());
mDrawable.getPaint().setColor(0xffffAC23);
mDrawable.setBounds(x, y, x + width, y + height);

}

@Override
protected void onDraw(Canvas canvas) {

mDrawable.setBounds(x, y, x + width, y + height);
mDrawable.draw(canvas);
invalidate();
}
}

}

关于android - 使用加速度计移动对象,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/24595913/

25 4 0
Copyright 2021 - 2024 cfsdn All Rights Reserved 蜀ICP备2022000587号
广告合作:1813099741@qq.com 6ren.com