大家好,我是刚接触android应用程序的人,我有一个问题,我不明白为什么mDemo = (SliderLayout)findviewById(R.id.slider)
的这部分代码为什么出错?
是因为我没有在SliderLayout下导入任何内容吗?
这是我的代码
package com.example.imageslider;
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import com.example.imageslider.SliderLayout;
import java.util.HashMap;
public class MainActivity extends Activity {
private SliderLayout mDemoSlider;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mDemoSlider = (SliderLayout)findViewById(R.id.slider);
HashMap<String,String> url_maps = new HashMap<String, String>();
}
}
XML格式
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:custom="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:context="com.example.MainActivity" >
<com.daimajia.slider.library.SliderLayout
android:id="@+id/slider"
android:layout_width="match_parent"
custom:pager_animation="Accordion"
custom:auto_cycle="true"
custom:indicator_visibility="visible"
custom:pager_animation_span="1100"
android:layout_height="200dp" />
<com.daimajia.slider.library.Indicators.PagerIndicator
android:id="@+id/custom_indicator"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
custom:selected_color="#0095BF"
custom:unselected_color="#55333333"
custom:selected_drawable="@string/hello_world"
custom:shape="oval"
custom_selected_drawable="@string/hello_world"
custom:selected_padding_left="5dp"
custom:selected_padding_right="5dp"
custom:unselected_padding_left="5dp"
custom:unselected_padding_right="5dp"
android:layout_centerHorizontal="true"
android:layout_alignParentBottom="true"
custom:selected_width="6dp"
custom:selected_height="6dp"
custom:unselected_width="6dp"
custom:unselected_height="6dp"
android:layout_marginBottom="20dp"
/>
<ListView
android:layout_below="@+id/slider"
android:id="@+id/transformers"
android:layout_width="match_parent"
android:layout_height="wrap_content"></ListView>
</RelativeLayout>
SliderLayout
软件包com.daimajia.slider.library;
import android.content.Context;
import android.util.AttributeSet;
import android.widget.RelativeLayout;
public class SliderLayout extends RelativeLayout {
public SliderLayout(Context context, AttributeSet attrs, int defStyle) {
super(context);
// TODO Auto-generated constructor stub
}
}
谢谢,我将此网站用作参考资料https://github.com/daimajia/AndroidImageSlider
最佳答案
在您的代码中,
import com.example.imageslider.SliderLayout;
但是在您的XML中
<com.daimajia.slider.library.SliderLayout
因此,当您转换视图R.id.slider时,它的类型错误。尝试将导入行更改为
import com.daimajia.slider.library.SliderLayout;
关于java - 图像滑块错误Android应用程序,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/27261965/