我正在开发一个应用程序，因为onDraw（）被调用。我使用以下逻辑。
所以，请指导我做错的地方。
MainActivity
public class Hello extends Activity implements SensorListener
{
private MyView myView;
private SensorManager sensorManager;
public void onAccuracyChanged(int paramInt1, int paramInt2)
{
}
public void onCreate(Bundle paramBundle)
{
super.onCreate(paramBundle);
Log.e("hello", "hello");
this.myView = new MyView(this);
setContentView(this.myView);
this.sensorManager = ((SensorManager)getSystemService("sensor"));
this.myView.setTheme(2);
}
protected void onResume()
{
super.onResume();
this.sensorManager.registerListener(this, 3, 0);
}
public void onSensorChanged(int paramInt, float[] paramArrayOfFloat)
{
switch (paramInt)
{
default:
case 1:
case 2:
}
this.myView.resetTama();
do
{
do
return;
while (Math.abs(paramArrayOfFloat[2]) <= 50.0F);
}
while (Math.abs(paramArrayOfFloat[0]) <= 15.0F);
}
public void onWindowFocusChanged(boolean paramBoolean)
{
super.onWindowFocusChanged(paramBoolean);
if (paramBoolean)
this.myView.init();
}
}
MyView类
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import android.widget.RelativeLayout;
import android.widget.RelativeLayout.LayoutParams;
import android.widget.TextView;
import java.lang.reflect.Array;
public class MyView extends RelativeLayout
{
private final int FP = -1;
private final int WC = -2;
public boolean disableApplication = false;
private int imgType = 1;
public boolean isBlack = false;
boolean isInitialized;
private Bitmap myBitmap;
private Paint myPaint = new Paint();
private int[] numbers;
private Tama[] oyatamaArray;
private Tama[][] tamaArray;
public MyView(Context paramContext)
{
super(paramContext);
Log.e("MyView", "MyView");
setFocusable(true);
setBackgroundResource(R.drawable.haikei);
setWillNotDraw(false);
this.myBitmap = BitmapFactory.decodeResource(getContext().getResources(), R.drawable.tama);
this.numbers = new int[6];
for (int i = 0; i<numbers.length; i++)
{
if (i >= this.numbers.length)
{
loadChangeThemeButton(paramContext);
new TextView(paramContext).setBackgroundResource(R.drawable.bar);
return;
}
this.numbers[i] = 0;
}
}
private void changeBackgroundImage()
{
int i = 1 + this.imgType;
this.imgType = i;
if (i > 3)
this.imgType = 1;
setTheme(this.imgType);
}
private void loadChangeThemeButton(Context paramContext)
{
ImageButton localImageButton = new ImageButton(paramContext);
localImageButton.setBackgroundResource(R.drawable.themebutton);
RelativeLayout.LayoutParams localLayoutParams = new RelativeLayout.LayoutParams(-2, -2);
localLayoutParams.addRule(9);
localLayoutParams.addRule(12);
localLayoutParams.setMargins(0, 0, 30, 30);
addView(localImageButton, localLayoutParams);
localImageButton.setOnClickListener(new View.OnClickListener()
{
public void onClick(View paramView)
{
MyView.this.changeBackgroundImage();
}
});
}
private Bitmap returnNumberImg(Resources paramResources, int paramInt)
{
switch (paramInt)
{
default:
return BitmapFactory.decodeResource(paramResources, R.drawable.n0);
case 1:
return BitmapFactory.decodeResource(paramResources, R.drawable.n1);
case 2:
return BitmapFactory.decodeResource(paramResources, R.drawable.n2);
case 3:
return BitmapFactory.decodeResource(paramResources, R.drawable.n3);
case 4:
return BitmapFactory.decodeResource(paramResources, R.drawable.n4);
case 5:
return BitmapFactory.decodeResource(paramResources, R.drawable.n5);
case 6:
return BitmapFactory.decodeResource(paramResources, R.drawable.n6);
case 7:
return BitmapFactory.decodeResource(paramResources, R.drawable.n7);
case 8:
return BitmapFactory.decodeResource(paramResources, R.drawable.n8);
case 9:
}
return BitmapFactory.decodeResource(paramResources, R.drawable.n9);
}
private void settingTamasTouchX(int paramInt1, int paramInt2)
{
int i = 0;
if (i >= this.oyatamaArray.length);
int k;
for (int j = 0; ; j++)
{
if (j >= this.tamaArray.length)
{
return;
}
k = 0;
if (k < this.tamaArray[j].length)
{
if (this.tamaArray[j][k].checkArea(paramInt1, paramInt2));
for (this.tamaArray[j][k].touchX = paramInt1; ; this.tamaArray[j][k].touchX = 0)
{
k++;
break;
}
// break label90;
}
}
}
public void init()
{
int i = getHeight() / 7;
int[] arrayOfInt = new int[6];
int j = 5;
if (j < 0)
this.oyatamaArray = new Tama[6];
int m;
int i1 = 0;
for (int k = 0; ; k++)
{
if (k >= this.oyatamaArray.length)
{
this.tamaArray = ((Tama[][])Array.newInstance(Tama.class, new int[] { 6, 4 }));
m = 0;
if (m < this.tamaArray.length)
{
for (int n = 0; ; n++)
{
if (n >= this.tamaArray[m].length)
{
m++;
break;
}
this.tamaArray[m][n] = new Tama(40 + n * 37, arrayOfInt[m] - 32, n + m * 10);
}
// break label154;
}
i1 = 0;
if (i1 < this.tamaArray.length)
{
for (int i2 = 0; ; i2++)
{
if (i2 >= this.tamaArray[i1].length)
{
i1++;
break;
}
if (i2 != this.tamaArray[i1].length - 1)
this.tamaArray[i1][i2].ueTama = this.tamaArray[i1][(i2 + 1)];
if (i2 == 0)
continue;
this.tamaArray[i1][i2].shitaTama = this.tamaArray[i1][(i2 - 1)];
}
// break label222;
}
this.isInitialized = true;
return;
}
this.oyatamaArray[k] = new Tama(279, arrayOfInt[k] - 32, k);
this.oyatamaArray[k].isOya = true;
}
}
@Override
protected void dispatchDraw(Canvas canvas){
super.dispatchDraw(canvas);
Log.e("......this.........","drawing");
}
@Override
protected void onDraw(Canvas paramCanvas)
{
super.onDraw(paramCanvas);
Log.e("This on draw","....yes");
if (!this.isInitialized)
init();
int i = 0;
Resources localResources;
int m;
while (true)
{
int j;
if (i >= this.oyatamaArray.length)
{
j = 0;
if (j >= this.tamaArray.length)
{
localResources = getContext().getResources();
m = 0;
if (m < 7)
break;
return;
}
}
else
{
paramCanvas.drawBitmap(this.myBitmap, this.oyatamaArray[i].getX(), this.oyatamaArray[i].getY(), this.myPaint);
i++;
continue;
}
for (int k = 0; ; k++)
{
if (k >= this.tamaArray[j].length)
{
j++;
break;
}
paramCanvas.drawBitmap(this.myBitmap, this.tamaArray[j][k].getX(), this.tamaArray[j][k].getY(), this.myPaint);
}
}
if (this.numbers.length <= m)
{
for (Bitmap localBitmap = BitmapFactory.decodeResource(localResources, 2130837523); ; localBitmap = returnNumberImg(localResources, this.numbers[m]))
{
paramCanvas.drawBitmap(localBitmap, 8.0F, getHeight() / 2 + m * 18, this.myPaint);
m++;
break;
}
}
}
public boolean onTouchEvent(MotionEvent paramMotionEvent)
{
int i = (int)paramMotionEvent.getX();
int j = (int)paramMotionEvent.getY();
if ((paramMotionEvent.getAction() == 0) && (i >= 0) && (i <= 40) && (410 <= j) && (j <= 430))
changeBackgroundImage();
if (paramMotionEvent.getAction() == 0)
settingTamasTouchX(i, j);
if (1 == paramMotionEvent.getAction())
settingTamasTouchX(0, 0);
int k;
int m = 0;
if (2 == paramMotionEvent.getAction())
{
k = 0;
if (k >= this.oyatamaArray.length)
{
m = 0;
if (m < this.tamaArray.length)
{
for (int n = 0; ; n++)
{
if (n >= this.tamaArray[m].length)
{
m++;
break;
}
this.tamaArray[m][n].checkAndSetArea(i, j);
if (!this.tamaArray[m][n].isUp)
continue;
int[] arrayOfInt = this.numbers;
arrayOfInt[m] = (1 + arrayOfInt[m]);
}
// break label164;
}
invalidate();
}
}
else
{
return true;
}
this.oyatamaArray[k].checkAndSetArea(i, j);
if (this.oyatamaArray[k].isUp)
this.numbers[k] = 5;
while (true)
{
k++;
break;
}
// label164:
return disableApplication;
}
public void resetTama()
{
int j;
for (int i = 0; ; i++)
{
if (i >= this.oyatamaArray.length)
{
j = 0;
if (j < this.tamaArray.length)
break;
invalidate();
return;
}
this.oyatamaArray[i].moveX(this.oyatamaArray[i].startX);
this.oyatamaArray[i].isUp = false;
this.numbers[i] = 0;
}
for (int k = 0; ; k++)
{
if (k >= this.tamaArray[j].length)
{
j++;
break;
}
this.tamaArray[j][k].moveX(this.tamaArray[j][k].startX);
this.tamaArray[j][k].isUp = false;
}
}
public void sensorChange(float[] paramArrayOfFloat)
{
int i = 0;
if (paramArrayOfFloat[2] < -50.0F)
i = 0 - 3;
int k;
while (true)
{
int j = 0;
if (j >= this.oyatamaArray.length)
{
k = 0;
if (k < this.tamaArray.length)
break;
if (i != 0)
invalidate();
return;
}
else
{
this.oyatamaArray[j].moveX(i + this.oyatamaArray[j].getX());
if (this.oyatamaArray[j].isUp)
this.numbers[j] = 5;
while (true)
{
j++;
break;
}
}
}
for (int m = 0; ; m++)
{
if (m >= this.tamaArray[k].length)
{
k++;
break;
}
this.tamaArray[k][m].moveX(i + this.tamaArray[k][m].getX());
if (!this.tamaArray[k][m].isUp)
continue;
int[] arrayOfInt = this.numbers;
arrayOfInt[k] = (1 + arrayOfInt[k]);
}
}
public void setTheme(int paramInt)
{
Resources localResources = getContext().getResources();
if (paramInt == 1)
{
this.myBitmap = BitmapFactory.decodeResource(localResources, R.drawable.tama);
setBackgroundResource(R.drawable.haikei);
}
while (true)
{
invalidate();
// return;
if (paramInt == 2)
{
this.myBitmap = BitmapFactory.decodeResource(localResources, R.drawable.tama2);
setBackgroundResource(2130837510);
continue;
}
this.myBitmap = BitmapFactory.decodeResource(localResources, R.drawable.tama3);
setBackgroundResource(2130837510);
}
}
}
main.xml中
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout android:id="@id/FrameLayout01"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
答案 0 :(得分：1)
尝试以下工作
编辑前发布的问题。
如果您要扩展ViewGroup，则应覆盖dispatchDraw()而不是onDraw()。
讨论主题@
https://groups.google.com/forum/?fromgroups=#!topic/android-developers/oLccWfszuUo
public class Hello extends Activity {
private MyView myView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.onCreate(savedInstanceState);
Log.e("hello", "hello");
this.myView = new MyView(this);
setContentView(this.myView);
}
public class MyView extends RelativeLayout
{
private Paint myPaint = new Paint();
private int[] numbers;
public MyView(Context paramContext)
{
super(paramContext);
Log.e("MyView", "MyView");
setFocusable(true);
setBackgroundResource(R.drawable.ic_launcher);
}
@Override
protected void dispatchDraw(Canvas canvas){
super.dispatchDraw(canvas);
Log.i("...............","drawing");
}
}
}
protected void dispatchDraw (Canvas canvas)
通过绘图调用以绘制子视图。这可以被派生类覆盖，以便在绘制子项之前获得控制（但是在绘制了它自己的视图之后）。
<强>参数
画布用于绘制视图的画布
如果您在构造函数调用onDraw中覆盖setWillNotDraw(false)，那么它应该可以正常工作。
http://developer.android.com/reference/android/view/View.html#setWillNotDraw(boolean)
public MyView(Context paramContext)
{
super(paramContext);
Log.e("MyView", "MyView");
setFocusable(true);
setBackgroundResource(R.drawable.ic_launcher);
setWillNotDraw(false);
}