我按照本教程(http://stuffthathappens.com/blog/2008/11/13/android-animation-101/)繪製了畫布上的美麗旋轉文字。一切都完美的作品時,我的主要活動採用如何在Android上的現有XML佈局中包含自定義視圖?
setContentView(new SplashScreenAnimation(this));
這裏是SplashScreenAnimation:
public class SplashScreenAnimation extends View {
private static final String QUOTE = "Nobody uses Java anymore. It's this big heavyweight ball and chain.";
private Animation anim;
public SplashScreenAnimation(Context context) {
super(context);
}
private void createAnim(Canvas canvas) {
anim = new RotateAnimation(0, 360, canvas.getWidth()/2, canvas
.getHeight()/2);
anim.setRepeatMode(Animation.REVERSE);
anim.setRepeatCount(Animation.INFINITE);
anim.setDuration(10000L);
anim.setInterpolator(new AccelerateDecelerateInterpolator());
startAnimation(anim);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
// Creates the animation the first time
if (anim == null) {
createAnim(canvas);
}
Path circle = new Path();
int centerX = canvas.getWidth()/2;
int centerY = canvas.getHeight()/2;
int r = Math.min(centerX, centerY);
circle.addCircle(centerX, centerY, r, Direction.CW);
Paint paint = new Paint();
paint.setColor(Color.BLUE);
paint.setTextSize(30);
paint.setAntiAlias(true);
canvas.drawTextOnPath(QUOTE, circle, 0, 30, paint);
}
}
但是我想這個動畫文字相結合,有它的下面兩個按鈕,所以我有一個RelativeLayout的:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout android:id="@+id/RelativeLayout1"
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent" android:background="@drawable/splash_screen">
<LinearLayout android:orientation="vertical"
android:layout_height="wrap_content" android:layout_width="fill_parent"
android:layout_alignParentBottom="true" android:id="@+id/bottomLinearLayout">
<Button android:layout_gravity="center_horizontal" android:id="@+id/playButton"
android:text="Button" android:layout_height="wrap_content"
android:layout_width="wrap_content"></Button>
<Button android:layout_height="wrap_content"
android:layout_width="wrap_content" android:id="@+id/optionsButton"
android:text="Button" android:layout_gravity="center_horizontal"
android:layout_marginBottom="30sp"></Button>
</LinearLayout>
<LinearLayout android:id="@+id/topLinearLayout"
android:orientation="vertical" android:layout_height="wrap_content"
android:layout_alignParentTop="true" android:layout_width="fill_parent">
</LinearLayout>
</RelativeLayout>
如何將此自定義視圖添加到上面的LinearLayout? (topLinearLayout - 這是最後一個)
我已經嘗試了很多不同的東西,並且我一直以強制關閉結束。
這種方法主要是我嘗試過的。我試過它膨脹等
LinearLayout item = (LinearLayout)findViewById(R.id.topLinearLayout);
SplashScreenAnimation child = new SplashScreenAnimation(this);
item.addView(child);
我加了整個SplashScreenAnimation類代碼:
((LinearLayout) findViewById(R.id.topLinearLayout)).addView(new SplashScreenAnimation(this))
它的作品!
爲什麼手動添加它的其他方法不起作用?這與動畫需要通過onDraw
開始的事實有關嗎?
你嘗試過什麼?你有沒有嘗試過'((LinearLayout)findViewById(R.id.topLinearLayout))。addView(new SplashScreenAnimation(this))' –
Sherif工作!!!!! – jducreux
赫赫你歡迎..我應該添加它作爲答案?你接受嗎?大家都開心嗎? :P –