更改视图onClick coverflow - Android

Question

我正在使用这个CoverFlow:http: //www.inter-fuser.com/2010/02/android-coverflow-widget-v2.html

我希望能够在单击按钮时更改View,该按钮是后退/前进图标,可以将您带到封面流中的上一个/下一个项目.

我稍微修改了封面流程,以便我使用XML布局.

这是我的onCreate()方法:

 setContentView(R.layout.main);

 CoverFlow coverFlow = (CoverFlow)findViewById(R.id.coverflow);  

 coverFlow.setAdapter(new ImageAdapter(this));
 ImageAdapter coverImageAdapter =  new ImageAdapter(this);     
 coverFlow.setAdapter(coverImageAdapter);
 coverFlow.setSpacing(-20);
 coverFlow.setSelection(0, true);
 coverFlow.setAnimationDuration(1000);

 tv = (TextView)findViewById(R.id.textView1);

 coverFlow.setOnItemClickListener(new OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
        Toast.makeText(getBaseContext(), String.valueOf(arg2), Toast.LENGTH_SHORT).show();
    }
 });

 coverFlow.setOnItemSelectedListener(new OnItemSelectedListener() {
    @Override
    public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
        tv.setText(String.valueOf(arg2));
    }

    @Override
    public void onNothingSelected(AdapterView<?> arg0) {
        // Do something
    }
 });

我的XML:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@drawable/home_background"
    android:orientation="vertical" >

    <com.demo.app.coverflow.CoverFlow
        android:id="@+id/coverflow"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentLeft="true"
        android:layout_marginBottom="39dp"
        android:layout_marginLeft="35dp"
        android:background="@drawable/button_left" />

    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentRight="true"
        android:layout_marginBottom="39dp"
        android:layout_marginRight="35dp"
        android:background="@drawable/button_right" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="55dp"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:text="hello"
        android:textColor="@color/White"
        android:textSize="16dp" />

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_alignParentRight="true"
        android:layout_marginRight="170dp"
        android:layout_marginTop="15dp"
        android:src="@drawable/unsa_logo" />

    <ImageView
        android:id="@+id/imageView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_marginRight="14dp"
        android:layout_marginTop="23dp"
        android:src="@drawable/pnc_logo" />

</RelativeLayout>

Answer 1

当我试图找出如何添加动画时，我遇到了这个，它只需一行即可完成所有操作：

向左走

coverFlow.onKeyDown(KeyEvent.KEYCODE_DPAD_LEFT, new KeyEvent(0, 0));

向右走

coverFlow.onKeyDown(KeyEvent.KEYCODE_DPAD_RIGHT, new KeyEvent(0, 0));

（只需将每一行添加到各自的按钮 onclick 方法中

希望这可以帮助任何发现自己处于与我相同情况的人:)