我试图在下面的链接中更改此答案 Gridview Tutorial problems
将图像从特定文件夹显示到gridview布局。我肯定打破了它..检查代码和日志猫......
package nsixty.crew.app;
import java.io.File;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Environment;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.Toast;
public class ImageAdapter45 extends BaseAdapter {
private Context mContext;
public ImageAdapter45(Context c) {
mContext = c;
}
public int getCount() {
return mThumbIds();
}
public Object getItem(int position) {
return null;
}
public long getItemId(int position) {
return 0;
}
// create a new ImageView for each item referenced by the Adapter
public View getView(int position, View convertView, ViewGroup parent) {
ImageView imageView;
if (convertView == null) { // if it's not recycled, initialize some
// attributes
imageView = new ImageView(mContext);
imageView.setLayoutParams(new GridView.LayoutParams(85, 85));
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageView.setPadding(8, 8, 8, 8);
} else {
imageView = (ImageView) convertView;
}
// File path = new File(Environment.getExternalStorageDirectory(),"/Crews/Images/");
// String paths = null;
//
// if(path.exists())
// {
//
//
//
//
// String[] fileNames = path.list();
//Log.d("I be mumu", data);
///after you use your images
// System.gc();
//Bitmap mBitmap = null;
//for(int i = 0; i < fileNames.length; i++)
//{
// Boolean finish = true;
//
//paths = (path.getPath() + "/" + fileNames[i]);
// BitmapFactory.Options opts=new BitmapFactory.Options();
// opts.inDither=false; //Disable Dithering mode
// opts.inPurgeable=true;
// opts.inPurgeable=true; //Tell to gc that whether it needs free memory, the Bitmap can be cleared
// opts.inInputShareable=true; //Which kind of reference will be used to recover the Bitmap data after being clear, when it will be used in the future
// opts.inTempStorage=new byte[32 * 1024];
//System.gc();
File path = new File(Environment.getExternalStorageDirectory(),
"/Crews/Images/");
String paths = null;
// String[] fileNames = null ;
StringBuilder sb = new StringBuilder();
if (path.exists()) {
//ArrayList<String> urls = new ArrayList<String>();
String[] fileNames = path.list();
//List<String> urls =(Arrays.asList(fileNames));
// for (int i = 0; i < fileNames.length; i++) {
//// sb.append((path.getPath() + "/" + fileNames[i]) + "\n");
// paths = ((path.getPath() + "/" + fileNames[i]));
// urls.add(paths);
//
// //Log.v("YELLLO12",urls.toArray().toString());
//
//
//
// }
// urls.add(paths);
// String paths3 = "";
//
// for (String s : urls)
// {
// paths3 += s + "\n";
//
// // imageView.setImageBitmap(BitmapFactory.decodeFile((path.getPath() + "/" + paths3)));
// }
imageView.setImageBitmap(BitmapFactory.decodeFile((path.getPath() + "/" +fileNames[position])));
System.gc();
Log.v("YELLLO1237P",fileNames[position]);
//imageView.setImageBitmap(BitmapFactory.decodeFile("/mnt/sdcard/Crews/Images/IMG_06_11_2012_01_16_05.jpg"));
//Log.v("YELLLO300",path.getPath() + "/" +paths3);
//Bitmap mBitmap = BitmapFactory.decodeFile(paths3);
//imageView.setImageBitmap(mBitmap);
//Log.v("YELLLO123",paths);
//Log.v("YELLLO124ggh",fileNames.toString());
}
//path.close();
// }
//fos.close();
return imageView;
}
//static String data = ImageAdapter45.data3();
//static String[] mThumbIds = {data};
// public static String Pathss(){
// File path = new File(Environment.getExternalStorageDirectory(),"/Crews/Images/");
// String paths = null;
// String[] fileNames = null ;
//
// StringBuilder sb = new StringBuilder();
// if(path.exists())
// {
// fileNames = path.list();
//
// for(int i = 0; i < fileNames.length; i++)
// {
// sb.append((path.getPath()+"/"+ fileNames[i]));
// paths = sb.toString();
// }
//
// }
// return paths.trim();
// }
public Integer mThumbIds() {
File path = new File(Environment.getExternalStorageDirectory(),"/Crews/Images/");
//String paths = null;
String[] fileNames = null ;
if(path.exists())
{
fileNames = path.list();
}
return fileNames.length;
//Log.d("I be mumu", data);
// StringBuilder sb = new StringBuilder();
// for(int i = 0; i < fileNames.length; i++)
// {
// //Boolean finish = true;
// //if (finish == true){
// String paths = (path.getPath() + "/" + fileNames[i]);
// sb.append
// //Log.d("o men see fuckup", paths);
//
// // }
// //fos.close();
//
//
// }
//
}
// references to our images
}
图像有时会打印相同的图像..有时它不显示，log.d打印路径三次。有时我的位图内存超大或Vm内存已满（这不是我的直接问题） 下面的日志猫
11-06 05:58:43.282: I/dalvikvm(1474): Could not find method android.widget.LinearLayout.setAlpha, referenced from method com.actionbarsherlock.internal.nineoldandroids.widget.NineLinearLayout.setAlpha
11-06 05:58:43.282: W/dalvikvm(1474): VFY: unable to resolve virtual method 3671: Landroid/widget/LinearLayout;.setAlpha (F)V
11-06 05:58:43.282: D/dalvikvm(1474): VFY: replacing opcode 0x6f at 0x000a
11-06 05:58:43.282: D/dalvikvm(1474): VFY: dead code 0x000d-000d in Lcom/actionbarsherlock/internal/nineoldandroids/widget/NineLinearLayout;.setAlpha (F)V
11-06 05:58:43.282: I/dalvikvm(1474): Could not find method android.widget.LinearLayout.setTranslationX, referenced from method com.actionbarsherlock.internal.nineoldandroids.widget.NineLinearLayout.setTranslationX
11-06 05:58:43.282: W/dalvikvm(1474): VFY: unable to resolve virtual method 3677: Landroid/widget/LinearLayout;.setTranslationX (F)V
11-06 05:58:43.282: D/dalvikvm(1474): VFY: replacing opcode 0x6f at 0x000a
11-06 05:58:43.282: D/dalvikvm(1474): VFY: dead code 0x000d-000d in Lcom/actionbarsherlock/internal/nineoldandroids/widget/NineLinearLayout;.setTranslationX (F)V
11-06 05:58:43.392: W/KeyCharacterMap(1474): No keyboard for id -1
11-06 05:58:43.402: W/KeyCharacterMap(1474): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
11-06 05:58:43.462: I/dalvikvm(1474): Could not find method com.actionbarsherlock.internal.view.menu.ActionMenuItemView.onHoverEvent, referenced from method com.actionbarsherlock.internal.view.menu.ActionMenuItemView.dispatchHoverEvent
11-06 05:58:43.462: W/dalvikvm(1474): VFY: unable to resolve virtual method 5030: Lcom/actionbarsherlock/internal/view/menu/ActionMenuItemView;.onHoverEvent (Landroid/view/MotionEvent;)Z
11-06 05:58:43.462: D/dalvikvm(1474): VFY: replacing opcode 0x6e at 0x0006
11-06 05:58:43.462: D/dalvikvm(1474): VFY: dead code 0x0009-0009 in Lcom/actionbarsherlock/internal/view/menu/ActionMenuItemView;.dispatchHoverEvent (Landroid/view/MotionEvent;)Z
11-06 05:58:43.502: I/dalvikvm(1474): Could not find method android.widget.LinearLayout.onPopulateAccessibilityEvent, referenced from method com.actionbarsherlock.internal.view.menu.ActionMenuItemView.onPopulateAccessibilityEvent
11-06 05:58:43.502: W/dalvikvm(1474): VFY: unable to resolve virtual method 3667: Landroid/widget/LinearLayout;.onPopulateAccessibilityEvent (Landroid/view/accessibility/AccessibilityEvent;)V
11-06 05:58:43.502: D/dalvikvm(1474): VFY: replacing opcode 0x6f at 0x0006
11-06 05:58:44.163: D/dalvikvm(402): GC_EXPLICIT freed 2K, 54% free 2538K/5511K, external 410K/517K, paused 13074ms
11-06 05:58:44.231: I/ActivityManager(61): Displayed nsixty.crew.app/.ViewPagerFragment: +8s985ms
11-06 05:58:53.015: D/SntpClient(61): request time failed: java.net.SocketException: Address family not supported by protocol
11-06 05:58:53.692: D/dalvikvm(140): GC_EXPLICIT freed 101K, 47% free 3193K/6023K, external 1597K/1823K, paused 2707ms
11-06 05:59:26.372: I/ActivityManager(61): Starting: Intent { act=nsixty.crew.app.GridView34 cmp=nsixty.crew.app/.GridView34 } from pid 1474
11-06 05:59:27.082: V/YELLLO300(1474): /mnt/sdcard/Crews/Images/IMG_06_11_2012_01_16_05.jpg
11-06 05:59:27.082: V/YELLLO300(1474): IMG10_10_2012_01_55_03.jpg
11-06 05:59:27.221: V/YELLLO300(1474): /mnt/sdcard/Crews/Images/IMG_06_11_2012_01_16_05.jpg
11-06 05:59:27.221: V/YELLLO300(1474): IMG10_10_2012_01_55_03.jpg
11-06 05:59:27.241: V/YELLLO300(1474): /mnt/sdcard/Crews/Images/IMG_06_11_2012_01_16_05.jpg
11-06 05:59:27.241: V/YELLLO300(1474): IMG10_10_2012_01_55_03.jpg
11-06 05:59:27.291: V/YELLLO300(1474): /mnt/sdcard/Crews/Images/IMG_06_11_2012_01_16_05.jpg
11-06 05:59:27.291: V/YELLLO300(1474): IMG10_10_2012_01_55_03.jpg
11-06 05:59:27.962: I/ActivityManager(61): Displayed nsixty.crew.app/.GridView34: +1s395ms
提前致谢..
答案 0 :(得分：0)
可能是因为你正在使用
File path = new File(Environment.getExternalStorageDirectory(),
"/Crews/Images/");
答案 1 :(得分：0)