我试图在水平ScrollView中包含缩放。想法是用户触摸他想要突出显示的图像中的屏幕,并且该图像比其他图像稍微大一点。我已经制作了Horizontall ScrollView,但我遇到了OnClick事件的问题。有什么更好的方法呢?
这是我在MainActivity.java中的内容
public class Carrusel extends Activity implements OnClickListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.iniciar);
{int[] images = new int[] { R.drawable.image1, R.drawable.image2,
R.drawable.image3, R.drawable.image4,
R.drawable.image5 };
LinearLayout sv = (LinearLayout) findViewById (R.id.carrusel);
for (int i=0 ; i<5; i++){
ImageView iv = new ImageView (this);
iv.setBackgroundResource (images[i]);
sv.addView(iv);
}
}
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.drawable.image1:
//I don´t know what to put here
break;
}
}
}
以下是我在te main_activity.xml中的内容
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:background="@color/black" >
<HorizontalScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="10dp"
>
<LinearLayout
android:id="@+id/carrusel"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
</LinearLayout>
</HorizontalScrollView>
</RelativeLayout>
答案 0 :(得分:0)
我是这样做的:
MainActivity.java :
public class MainActivity extends Activity implements OnClickListener {
ImageView lastClicked = null;
int width = 400;
int height = 320;
int padding = 30;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
LinearLayout l;
l = (LinearLayout) findViewById(R.id.linear);
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
width, height);
int[] images = new int[] { R.drawable.image1, R.drawable.image2,
R.drawable.image3, R.drawable.image4, R.drawable.image5 };
for (int i = 0; i < 5; i++) {
ImageView iv = new ImageView(this);
iv.setLayoutParams(layoutParams);
iv.setImageResource(images[i]);
iv.setPadding(padding, padding, padding, padding);
iv.setOnClickListener(this);
l.addView(iv);
}
}
@Override
public void onClick(View v) {
if (v instanceof ImageView) {
if (lastClicked != null) {
lastClicked.setPadding(padding, padding, padding, padding);
lastClicked.invalidate();
}
v.setPadding(0, 0, 0, 0);
v.invalidate();
lastClicked = (ImageView) v;
}
}
}