1
は、私は彼が【選択コードを以下に示します。この問題を解決する方法のライン Androidのギャラリー描画可能なエラー
R.drawable.sample_1 cannot be resolved
R.drawable.sample_2 cannot be resolved,
R.drawable.sample_3 cannot be resolved,
R.drawable.sample_4 cannot be resolved,
R.drawable.sample_5 cannot be resolved,
R.drawable.sample_6 cannot be resolved,
R.drawable.sample_7 cannot be resolved
からアンドロイドギャラリー例を実装しようとしています。
HelloGallery.java
package com.HelloGallery;
import android.app.Activity;
import android.content.Context;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
import android.R.drawable;
public class HelloGalleryActivity 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(HelloGalleryActivity.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) {
ImageView i = new ImageView(mContext);
i.setImageResource(mImageIds[position]);
i.setLayoutParams(new Gallery.LayoutParams(150, 100));
i.setScaleType(ImageView.ScaleType.FIT_XY);
i.setBackgroundResource(mGalleryItemBackground);
return i;
}
}
}
main.mxml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<Gallery xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/gallery"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
</LinearLayout>
attrs.mxml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<declare-styleable name="HelloGallery">
<attr name="android:galleryItemBackground" />
</declare-styleable>
</resources>
R.java
/* AUTO-GENERATED FILE. DO NOT MODIFY.
*
* This class was automatically generated by the
* aapt tool from the resource data it found. It
* should not be modified by hand.
*/
package com.HelloGallery;
public final class R {
public static final class attr {
}
public static final class drawable {
public static final int icon=0x7f020000;
}
public static final class id {
public static final int gallery=0x7f050000;
}
public static final class layout {
public static final int main=0x7f030000;
}
public static final class string {
public static final int app_name=0x7f040001;
public static final int hello=0x7f040000;
}
public static final class styleable {
/** Attributes that can be used with a HelloGallery.
<p>Includes the following attributes:</p>
<table>
<colgroup align="left" />
<colgroup align="left" />
<tr><th>Attribute</th><th>Description</th></tr>
<tr><td><code>{@link #HelloGallery_android_galleryItemBackground com.HelloGallery:android_galleryItemBackground}</code></td><td></td></tr>
</table>
@see #HelloGallery_android_galleryItemBackground
*/
public static final int[] HelloGallery = {
0x0101004c
};
/**
<p>This symbol is the offset where the {@link com.HelloGallery.R.attr#android_galleryItemBackground}
attribute's value can be found in the {@link #HelloGallery} array.
@attr name android:android_galleryItemBackground
*/
public static final int HelloGallery_android_galleryItemBackground = 0;
};
}
uは描画可能で、これらの名前と画像を右（sample_1、sample_2 .......）であると言うことを意味しますもしそうなら、私はそれを持っています.... – Rajeev
は/ res/drawableにありますか？ – Blundell