我想在运行时在左上角放置一个ImageView,但它不起作用。 这是我的布局和代码:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="fill_parent"
android:id="@+id/layout_main"
android:layout_height="fill_parent" tools:context=".Main">
</RelativeLayout>
这是代码:
RelativeLayout layout = (RelativeLayout)findViewById(R.id.layout_main);
ImageView imageView =new ImageView(getApplicationContext());
imageView.setImageResource(R.drawable.green_apple);
imageView.setScaleX(0.3f);
imageView.setScaleY(0.3f);
imageView.setLeft(0);
imageView.setTop(0);
layout.addView(imageView);
我也尝试过:
RelativeLayout layout = (RelativeLayout)findViewById(R.id.layout_main);
ImageView imageView =new ImageView(getApplicationContext());
imageView.setImageResource(R.drawable.green_apple);
imageView.setScaleX(0.3f);
imageView.setScaleY(0.3f);
imageView.setX(0);
imageView.setY(0);
layout.addView(imageView);
和
RelativeLayout layout = (RelativeLayout)findViewById(R.id.layout_main);
ImageView imageView =new ImageView(getApplicationContext());
imageView.setImageResource(R.drawable.green_apple);
imageView.setScaleX(0.3f);
imageView.setScaleY(0.3f);
layout.addView(imageView);
set = new AnimatorSet();
ObjectAnimator aniX = ObjectAnimator.ofFloat(imageView, "x", 0);
aniX.setDuration(100);
ObjectAnimator aniY = ObjectAnimator.ofFloat(imageView, "y", 0);
aniY.setDuration(100);
set.playTogether(aniX, aniY);
set.start()
但同样的结果,这是我的结果:
总是有大空间到顶部和左侧屏幕,虽然我设置0,0。我也尝试设置屏幕的高度和宽度,它飞出屏幕。我不知道为什么。 非常感谢,任何人都可以解释,以及如何帮助我解决它
答案 0 :(得分:1)
那是因为你使用了setScaleX和setScaleY,所以请尝试下面的代码:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js">
</script>
<ul>
<li>a
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<li>b
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<li>c
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<li>d
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<li>e
</li>
<li>f
</li>
<li>g
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</ul>