4
我一直試圖在這裏按照教程:的Java:Android開發人員:「方法getHolder()是未定義的類型GameView」
http://www.edu4java.com/en/androidgame/androidgame2.html
但遇到了阻礙。出於某種原因,日食不承認getHolder(),並給了我以下錯誤:
的方法getHolder()是未定義的類型GameView
與以下解決方案:
更改爲getHandler (...); 創建方法getHolder()
的代碼幾乎是一樣的教程,但這裏是我反正:
package com.example.killthemall;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;
import android.view.View;
public class GameView extends View {
private Bitmap bmp;
private SurfaceHolder holder;
public GameView(Context context) {
super(context);
holder = getHolder();
holder.addCallback(new Callback() {
public void surfaceDestroyed(SurfaceHolder holder) {
}
public void surfaceCreated(SurfaceHolder holder) {
Canvas c = holder.lockCanvas(null);
onDraw(c);
holder.unlockCanvasAndPost(c);
}
public void surfaceChanged(SurfaceHolder holder, int format,
int width, int height) {
}
});
bmp = BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher);
}
@Override
protected void onDraw(Canvas canvas) {
canvas.drawColor(Color.BLACK);
canvas.drawBitmap(bmp, 10, 10, null);
}
}
啊,有什麼簡單而令人尷尬的錯誤。這一切都解決了。謝謝! – Bob
發現大多數錯誤很簡單;) – Geobits