Android的画廊标题 [英] Android gallery with caption

查看:124
本文介绍了Android的画廊标题的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我一直在关注画廊的例子在这里:的http://开发商.android.com /资源/教程/视图/ HELLO-gallery.html

和添加文本,从这里下的图​​像显示:<一href="http://mytelcoit.com/2010/02/programming-android-create-icon-with-text-using-gridview-and-layout-inflater/" rel="nofollow">http://mytelcoit.com/2010/02/programming-android-create-icon-with-text-using-gridview-and-layout-inflater/

不过,我正从LogCat中此错误

  06-22 17:21:02.193:ERROR / AndroidRuntime(1444):致命异常:主要
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):java.lang.ClassCastException:android.widget.Gallery $的LayoutParams不能转换为android.widget.LinearLayout $的LayoutParams
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.widget.LinearLayout.measureVertical(LinearLayout.java:587)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.widget.LinearLayout.onMeasure(LinearLayout.java:519)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.view.View.measure(View.java:10828)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.view.ViewGroup.measureChild(ViewGroup.java:4322)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.widget.AbsSpinner.onMeasure(AbsSpinner.java:206)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.view.View.measure(View.java:10828)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4351)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.widget.FrameLayout.onMeasure(FrameLayout.java:267)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.view.View.measure(View.java:10828)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.widget.LinearLayout.measureVertical(LinearLayout.java:764)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.widget.LinearLayout.onMeasure(LinearLayout.java:519)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.view.View.measure(View.java:10828)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4351)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.widget.FrameLayout.onMeasure(FrameLayout.java:267)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在com.android.internal.policy.impl.PhoneWindow $ DecorView.onMeasure(PhoneWindow.java:1890)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.view.View.measure(View.java:10828)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.view.ViewRoot.performTraversals(ViewRoot.java:909)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.view.ViewRoot.handleMessage(ViewRoot.java:2003)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.os.Handler.dispatchMessage(Handler.java:99)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.os.Looper.loop(Looper.java:132)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在android.app.ActivityThread.main(ActivityThread.java:4025)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在java.lang.reflect.Method.invokeNative(本机方法)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在java.lang.reflect.Method.invoke(Method.java:491)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:841)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
06-22 17:21:02.193:ERROR / AndroidRuntime(1444):在dalvik.system.NativeStart.main(本机方法)
 

我假设图库视图不会线性布局工作?我相信,即时得到上述错误的getView()。任何人都知道的一种方式来解决这个问题?

GalleryActivity.java

 包android.gallery;

进口android.app.Activity;
进口android.content.Context;
进口android.content.res.TypedArray;
进口android.os.Bundle;
进口android.view.LayoutInflater;
进口android.view.View;
进口android.view.ViewGroup;
进口android.widget.AdapterView;
进口android.widget.AdapterView.OnItemClickListener;
进口android.widget.BaseAdapter;
进口android.widget.Gallery;
进口android.widget.ImageView;
进口android.widget.TextView;
进口android.widget.Toast;

公共类GalleryActivity延伸活动{
    / **第一次创建活动时调用。 * /
    @覆盖
    公共无效的onCreate(包savedInstanceState){
        super.onCreate(savedInstanceState);
        的setContentView(R.layout.main);

        画廊G =(图库论坛)findViewById(R.id.gallery);
        g.setAdapter(新ImageAdapter(本));

        g.setOnItemClickListener(新OnItemClickListener(){
            公共无效onItemClick(适配器视图父,视图V,INT位置,长的id){
                Toast.makeText(GalleryActivity.this,+位置,Toast.LENGTH_SHORT).show();
            }
        });
    }

    公共类ImageAdapter扩展了BaseAdapter {
        INT mGalleryItemBackground;
        私人语境mContext;

        私人整数[] mImageIds = {
                R.drawable.sample_1,
                R.drawable.sample_2,
                R.drawable.sample_3,
                R.drawable.sample_4,
                R.drawable.sample_5,
                R.drawable.sample_6,
                R.drawable.sample_7
        };

        公共ImageAdapter(上下文C){
            mContext = C;
            TypedArray A = obtainStyledAttributes(R.styleable.HelloGallery);
            mGalleryItemBackground = a.getResourceId(
                    R.styleable.HelloGallery_android_galleryItemBackground,0);
            a.recycle();
        }

        公众诠释getCount将(){
            返回mImageIds.length;
        }

        公共对象的getItem(INT位置){
            返回的位置;
        }

        众长getItemId(INT位置){
            返回的位置;
        }

        公共查看getView(INT位置,查看convertView,ViewGroup中父){
            视图V;

            LayoutInflater李= getLayoutInflater();
            V = li.inflate(R.layout.caption,NULL);

            TextView的电视=(TextView中)v.findViewById(R.id.caption_text);
            tv.setText(测试);

            ImageView的I =(ImageView的)v.findViewById(R.id.image_icon);
            i.setImageResource(mImageIds [位置]);
            i.setLayoutParams(新Gallery.LayoutParams(150,100));
            i.setScaleType(ImageView.ScaleType.FIT_XY);
            i.setBackgroundResource(mGalleryItemBackground);

            返回伏;
        }
    }
}
 

caption.xml

 &LT; XML版本=1.0编码=UTF-8&GT?;
&LT;的LinearLayout
  的xmlns:机器人=htt​​p://schemas.android.com/apk/res/android
  机器人:方向=垂直
  机器人:layout_width =match_parent
  机器人:layout_height =match_parent&GT;

    &LT; ImageView的
        机器人:ID =@ + ID / IMAGE_ICON
        机器人:layout_width =WRAP_CONTENT
        机器人:layout_height =WRAP_CONTENT&GT;
    &LT; / ImageView的&GT;

    &LT;的TextView
        机器人:文本=TextView的
        机器人:ID =@ + ID / caption_text
        机器人:layout_width =WRAP_CONTENT
        机器人:layout_height =WRAP_CONTENT&GT;
    &LT; / TextView的&GT;

&LT; / LinearLayout中&GT;
 

main.xml中

 &LT; XML版本=1.0编码=UTF-8&GT?;
&LT;画廊
    的xmlns:机器人=htt​​p://schemas.android.com/apk/res/android
    机器人:ID =@ + ID /画廊
    机器人:layout_width =FILL_PARENT
    机器人:layout_height =WRAP_CONTENT&GT;
&LT; /画廊&GT;
 

解决方案

我已经试过这一个,发现解决这个的方法之一。请试试这个也:

main.xml中

 &LT; XML版本=1.0编码=UTF-8&GT?;
&LT; LinearLayout中的android:layout_width =FILL_PARENT机器人:layout_height =FILL_PARENT机器人:方向=垂直安卓重力=中心的xmlns:机器人=htt​​p://schemas.android.com/apk/res/机器人&GT;
    &LT;画廊机器人:ID =@ + ID / galleryid
        机器人:layout_width =FILL_PARENT
        机器人:layout_height =match_parent/&GT;
&LT; / LinearLayout中&GT;
 

image_gallery_items.xml

 &LT; XML版本=1.0编码=UTF-8&GT?;
&LT;的LinearLayout机器人:ID =@ + ID / LinearLayout01
    机器人:layout_width =FILL_PARENT的xmlns:机器人=htt​​p://schemas.android.com/apk/res/android
    机器人:layout_height =WRAP_CONTENT机器人:填充=3SP机器人:方向=垂直安卓重力=center_horizo​​ntal&GT;

    &LT; ImageView的机器人:ID =@ + ID /图片机器人:SRC =@可绘制/图标
        机器人:layout_height =110dp机器人:layout_width =130dp机器人:layout_gravity =中心&GT;&LT; / ImageView的&GT;
    &LT; TextView的Andr​​oid版本:文本=TextView的机器人:ID =@ + ID / textView1机器人:layout_width =WRAP_CONTENT机器人:layout_height =WRAP_CONTENT&GT;&LT; / TextView的&GT;

&LT; / LinearLayout中&GT;
 

GalleryExample.java

 公共类GalleryExample延伸活动{
        私人画廊galleryView;
        / **第一次创建活动时调用。 * /
        @覆盖
        公共无效的onCreate(包savedInstanceState){
            super.onCreate(savedInstanceState);
            的setContentView(R.layout.main);
            galleryView =(图库论坛)findViewById(R.id.galleryid);
            galleryView.setAdapter(新ImageAdapter(本));
        }
}
 

ImageAdapter.java

 公共类ImageAdapter扩展了BaseAdapter {

        私人活动的活动;
        私有静态LayoutInflater吹气= NULL;

        公共ImageAdapter(活性){
            活性= A;
            充气=(LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        }

        公众诠释getCount将(){
            返回data.length;
        }

        公共对象的getItem(INT位置){
            返回的位置;
        }

        众长getItemId(INT位置){
            返回的位置;
        }

        公共静态类ViewHolder {
            公共TextView的文字;
            公众ImageView的形象;
        }

        公共查看getView(INT位置,查看convertView,ViewGroup中父){
            查看VI = convertView;
            ViewHolder持有人;
            如果(convertView == NULL){
                VI = inflater.inflate(R.layout.image_gallery_items,NULL);
                持有人=新ViewHolder();
                holder.text =(TextView中)vi.findViewById(R.id.textView1);
                holder.image =(ImageView的)vi.findViewById(R.id.image);
                vi.setTag(保持器);
            }
            其他
                支架=(ViewHolder)vi.getTag();
            holder.text.setText(名字[位置]);
            最终诠释stub_id =数据[位置]
            holder.image.setImageResource(stub_id);
            返回六;
        }

        私人INT []数据= {
                R.drawable.imag1,R.drawable.imag2,
                R.drawable.imag3,R.drawable.imag4,
                R.drawable.imag5,R.drawable.imag6
        };
        私有String []名= {
                Image1的,图像2,
                的Image3,为image4,
                Image5,Image6
        };
    }
 

和在AndroidManifest.xml中指定GalleryExample而已。

I have been following the gallery example here: http://developer.android.com/resources/tutorials/views/hello-gallery.html

and adding a text to show up under the image from here: http://mytelcoit.com/2010/02/programming-android-create-icon-with-text-using-gridview-and-layout-inflater/

However, I am getting this error from LogCat

06-22 17:21:02.193: ERROR/AndroidRuntime(1444): FATAL EXCEPTION: main
06-22 17:21:02.193: ERROR/AndroidRuntime(1444): java.lang.ClassCastException: android.widget.Gallery$LayoutParams cannot be cast to android.widget.LinearLayout$LayoutParams
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.widget.LinearLayout.measureVertical(LinearLayout.java:587)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.widget.LinearLayout.onMeasure(LinearLayout.java:519)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.view.View.measure(View.java:10828)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.view.ViewGroup.measureChild(ViewGroup.java:4322)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.widget.AbsSpinner.onMeasure(AbsSpinner.java:206)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.view.View.measure(View.java:10828)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4351)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.widget.FrameLayout.onMeasure(FrameLayout.java:267)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.view.View.measure(View.java:10828)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.widget.LinearLayout.measureVertical(LinearLayout.java:764)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.widget.LinearLayout.onMeasure(LinearLayout.java:519)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.view.View.measure(View.java:10828)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4351)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.widget.FrameLayout.onMeasure(FrameLayout.java:267)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:1890)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.view.View.measure(View.java:10828)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.view.ViewRoot.performTraversals(ViewRoot.java:909)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.view.ViewRoot.handleMessage(ViewRoot.java:2003)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.os.Handler.dispatchMessage(Handler.java:99)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.os.Looper.loop(Looper.java:132)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at android.app.ActivityThread.main(ActivityThread.java:4025)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at java.lang.reflect.Method.invokeNative(Native Method)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at java.lang.reflect.Method.invoke(Method.java:491)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
06-22 17:21:02.193: ERROR/AndroidRuntime(1444):     at dalvik.system.NativeStart.main(Native Method)

I am assuming the gallery view wont work with linear layout? I believe im getting the above error from getView(). Anyone know of a way to fix this?

GalleryActivity.java

package android.gallery;

import android.app.Activity;
import android.content.Context;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

public class GalleryActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        Gallery g = (Gallery) findViewById(R.id.gallery);
        g.setAdapter(new ImageAdapter(this));

        g.setOnItemClickListener(new OnItemClickListener() {
            public void onItemClick(AdapterView parent, View v, int position, long id) {
                Toast.makeText(GalleryActivity.this, "" + position, Toast.LENGTH_SHORT).show();
            }
        });
    }

    public class ImageAdapter extends BaseAdapter {
        int mGalleryItemBackground;
        private Context mContext;

        private Integer[] mImageIds = {
                R.drawable.sample_1,
                R.drawable.sample_2,
                R.drawable.sample_3,
                R.drawable.sample_4,
                R.drawable.sample_5,
                R.drawable.sample_6,
                R.drawable.sample_7
        };

        public ImageAdapter(Context c) {
            mContext = c;
            TypedArray a = obtainStyledAttributes(R.styleable.HelloGallery);
            mGalleryItemBackground = a.getResourceId(
                    R.styleable.HelloGallery_android_galleryItemBackground, 0);
            a.recycle();
        }

        public int getCount() {
            return mImageIds.length;
        }

        public Object getItem(int position) {
            return position;
        }

        public long getItemId(int position) {
            return position;
        }

        public View getView(int position, View convertView, ViewGroup parent) {
            View v;

            LayoutInflater li = getLayoutInflater();
            v = li.inflate(R.layout.caption, null);

            TextView tv = (TextView) v.findViewById(R.id.caption_text);
            tv.setText("test");

            ImageView i = (ImageView)v.findViewById(R.id.image_icon);
            i.setImageResource(mImageIds[position]);
            i.setLayoutParams(new Gallery.LayoutParams(150, 100));
            i.setScaleType(ImageView.ScaleType.FIT_XY);
            i.setBackgroundResource(mGalleryItemBackground);

            return v;
        }
    }
}

caption.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="match_parent"
  android:layout_height="match_parent">

    <ImageView
        android:id="@+id/image_icon"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">
    </ImageView>

    <TextView 
        android:text="TextView" 
        android:id="@+id/caption_text" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content">
    </TextView>

</LinearLayout>

main.xml

<?xml version="1.0" encoding="utf-8"?>
<Gallery 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/gallery"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content">   
</Gallery>

解决方案

I have tried this one and found one way to solve this. Please try this also:

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:gravity="center" xmlns:android="http://schemas.android.com/apk/res/android">
    <Gallery android:id="@+id/galleryid"
        android:layout_width="fill_parent" 
        android:layout_height="match_parent"/>      
</LinearLayout>

image_gallery_items.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:id="@+id/LinearLayout01"
    android:layout_width="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_height="wrap_content" android:padding="3sp" android:orientation="vertical" android:gravity="center_horizontal"> 

    <ImageView android:id="@+id/image" android:src="@drawable/icon"
        android:layout_height="110dp" android:layout_width="130dp" android:layout_gravity="center"></ImageView>
    <TextView android:text="TextView" android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content"></TextView>

</LinearLayout>

GalleryExample.java

 public class GalleryExample extends Activity {
        private  Gallery galleryView;
        /** Called when the activity is first created. */
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);
            galleryView = (Gallery)findViewById(R.id.galleryid);
            galleryView.setAdapter(new ImageAdapter(this));
        }
}

ImageAdapter.java

 public class ImageAdapter extends BaseAdapter {

        private Activity activity;
        private static LayoutInflater inflater=null;

        public ImageAdapter(Activity a) {
            activity = a;
            inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        }

        public int getCount() {
            return data.length;
        }

        public Object getItem(int position) {
            return position;
        }

        public long getItemId(int position) {
            return position;
        }

        public static class ViewHolder{
            public TextView text;
            public ImageView image;
        }

        public View getView(int position, View convertView, ViewGroup parent) {
            View vi=convertView;
            ViewHolder holder;
            if(convertView==null){
                vi = inflater.inflate(R.layout.image_gallery_items, null);
                holder=new ViewHolder();
                holder.text=(TextView)vi.findViewById(R.id.textView1);
                holder.image=(ImageView)vi.findViewById(R.id.image);
                vi.setTag(holder);
            }
            else
                holder=(ViewHolder)vi.getTag();
            holder.text.setText(name[position]);
            final int stub_id=data[position];
            holder.image.setImageResource(stub_id);
            return vi;
        }

        private int[] data = {
                R.drawable.imag1, R.drawable.imag2,
                R.drawable.imag3, R.drawable.imag4,
                R.drawable.imag5, R.drawable.imag6
        };
        private String[] name = {
                "Image1", "Image2",
                "Image3", "Image4",
                "Image5", "Image6"
        };
    }

And in the AndroidMAnifest.xml specify GalleryExample only.

这篇关于Android的画廊标题的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

查看全文
登录 关闭
扫码关注1秒登录
发送“验证码”获取 | 15天全站免登陆