Android Java类的加载时间比预期的长。我可以改变我的来源以加快速度吗？
我想知道我是否可以改变我的代码以加快加载时间。当用户想要更改主屏幕上的图标时，他们单击“选择图像”并选择“我的活动” 这就是延迟发生的时间。加载大约需要7到8秒。现在我确实加载了1000个图标，但在添加多个GridView之前，只需2到3秒钟。我添加了多个GridView，这样我就可以切掉我的图标，我想保留它 下面是加载icons2类时的日志。我删除了许多GC_FOR_ALLOC条目，因为它对于这篇文章来说太大了 我查看了DDMS，并将活动的分配跟踪器与其他主题进行了比较，这些主题很快，而且非常接近。我在想，在我的Android Java类的加载时间比预期的长。我可以改变我的来源以加快速度吗？,java,android,gridview,Java,Android,Gridview,我想知道我是否可以改变我的代码以加快加载时间。当用户想要更改主屏幕上的图标时，他们单击“选择图像”并选择“我的活动” 这就是延迟发生的时间。加载大约需要7到8秒。现在我确实加载了1000个图标，但在添加多个GridView之前，只需2到3秒钟。我添加了多个GridView，这样我就可以切掉我的图标，我想保留它 下面是加载icons2类时的日志。我删除了许多GC_FOR_ALLOC条目，因为它对于这篇文章来说太大了 我查看了DDMS，并将活动的分配跟踪器与其他主题进行了比较，这些主题很快，而且非常
icons206-13 14:14:09.334: D/dalvikvm(1779): GC_CONCURRENT freed 426K, 4% free 13815K/14352K, paused 10ms+0ms, total 15ms
06-13 14:14:09.525: W/Trace(1779): Unexpected value from nativeGetEnabledTags: 0
06-13 14:14:09.535: W/Trace(1779): Unexpected value from nativeGetEnabledTags: 0
06-13 14:14:09.535: W/Trace(1779): Unexpected value from nativeGetEnabledTags: 0
06-13 14:14:09.557: W/Trace(1779): Unexpected value from nativeGetEnabledTags: 0
06-13 14:14:09.595: W/Trace(1779): Unexpected value from nativeGetEnabledTags: 0
06-13 14:14:09.605: D/dalvikvm(1779): GC_CONCURRENT freed 1587K, 11% free 14168K/15868K, paused 6ms+3ms, total 11ms
06-13 14:14:09.655: D/dalvikvm(1779): GC_FOR_ALLOC freed 732K, 12% free 14424K/16280K, paused 5ms, total 13ms
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06-13 14:14:20.944: I/Choreographer(1779): Skipped 1161 frames! The application may be doing too much work on its main thread.
package bigdx.clean.multi;
import java.util.ArrayList;
import bigdx.clean.multi.R;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
public class Icons2 extends Activity {
public Uri CONTENT_URI;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
int iconSize=getResources().getDimensionPixelSize(android.R.dimen.app_icon_size);
setContentView(R.layout.icon_picker);
ExpandableHeightGridView g=(ExpandableHeightGridView) findViewById(R.id.icon_grid_folders);
ExpandableHeightGridView g2=(ExpandableHeightGridView) findViewById(R.id.icon_grid_apps);
ExpandableHeightGridView g3=(ExpandableHeightGridView) findViewById(R.id.icon_grid_google);
ExpandableHeightGridView g4=(ExpandableHeightGridView) findViewById(R.id.icon_grid_system);
ExpandableHeightGridView g5=(ExpandableHeightGridView) findViewById(R.id.icon_grid_games);
ExpandableHeightGridView g6=(ExpandableHeightGridView) findViewById(R.id.icon_grid_text);
g.setExpanded(true);
g2.setExpanded(true);
g3.setExpanded(true);
g4.setExpanded(true);
g5.setExpanded(true);
g6.setExpanded(true);
g.setNumColumns(GridView.AUTO_FIT);
g2.setNumColumns(GridView.AUTO_FIT);
g3.setNumColumns(GridView.AUTO_FIT);
g4.setNumColumns(GridView.AUTO_FIT);
g5.setNumColumns(GridView.AUTO_FIT);
g6.setNumColumns(GridView.AUTO_FIT);
g.setColumnWidth(iconSize);
g2.setColumnWidth(iconSize);
g3.setColumnWidth(iconSize);
g4.setColumnWidth(iconSize);
g5.setColumnWidth(iconSize);
g6.setColumnWidth(iconSize);
g.setStretchMode(GridView.STRETCH_SPACING_UNIFORM);
g2.setStretchMode(GridView.STRETCH_SPACING_UNIFORM);
g3.setStretchMode(GridView.STRETCH_SPACING_UNIFORM);
g4.setStretchMode(GridView.STRETCH_SPACING_UNIFORM);
g5.setStretchMode(GridView.STRETCH_SPACING_UNIFORM);
g6.setStretchMode(GridView.STRETCH_SPACING_UNIFORM);
g.setVerticalSpacing(iconSize/3);
g2.setVerticalSpacing(iconSize/3);
g3.setVerticalSpacing(iconSize/3);
g4.setVerticalSpacing(iconSize/3);
g5.setVerticalSpacing(iconSize/3);
g6.setVerticalSpacing(iconSize/3);
g.setAdapter(new IconsAdapter(this, iconSize, g.getId()));
g2.setAdapter(new IconsAdapter(this, iconSize, g2.getId()));
g3.setAdapter(new IconsAdapter(this, iconSize, g3.getId()));
g4.setAdapter(new IconsAdapter(this, iconSize, g4.getId()));
g5.setAdapter(new IconsAdapter(this, iconSize, g5.getId()));
g6.setAdapter(new IconsAdapter(this, iconSize, g6.getId()));
g.setOnItemClickListener(new AdapterView.OnItemClickListener(){
private Uri CONTENT_URI = Uri.parse("content://" + IconsProvider.class.getCanonicalName());
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
String str = adapterView.getItemAtPosition(position).toString();
setResult(-1, new Intent(null, Uri.withAppendedPath(this.CONTENT_URI, str)));
finish();
}
});
g2.setOnItemClickListener(new AdapterView.OnItemClickListener(){
private Uri CONTENT_URI = Uri.parse("content://" + IconsProvider.class.getCanonicalName());
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
String str = adapterView.getItemAtPosition(position).toString();
setResult(-1, new Intent(null, Uri.withAppendedPath(this.CONTENT_URI, str)));
finish();
}
});
g3.setOnItemClickListener(new AdapterView.OnItemClickListener(){
private Uri CONTENT_URI = Uri.parse("content://" + IconsProvider.class.getCanonicalName());
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
String str = adapterView.getItemAtPosition(position).toString();
setResult(-1, new Intent(null, Uri.withAppendedPath(this.CONTENT_URI, str)));
finish();
}
});
g4.setOnItemClickListener(new AdapterView.OnItemClickListener(){
private Uri CONTENT_URI = Uri.parse("content://" + IconsProvider.class.getCanonicalName());
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
String str = adapterView.getItemAtPosition(position).toString();
setResult(-1, new Intent(null, Uri.withAppendedPath(this.CONTENT_URI, str)));
finish();
}
});
g5.setOnItemClickListener(new AdapterView.OnItemClickListener(){
private Uri CONTENT_URI = Uri.parse("content://" + IconsProvider.class.getCanonicalName());
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
String str = adapterView.getItemAtPosition(position).toString();
setResult(-1, new Intent(null, Uri.withAppendedPath(this.CONTENT_URI, str)));
finish();
}
});
g6.setOnItemClickListener(new AdapterView.OnItemClickListener(){
private Uri CONTENT_URI = Uri.parse("content://" + IconsProvider.class.getCanonicalName());
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
String str = adapterView.getItemAtPosition(position).toString();
setResult(-1, new Intent(null, Uri.withAppendedPath(this.CONTENT_URI, str)));
finish();
}
});
}
class IconsAdapter extends BaseAdapter{
private Context mContext;
private int mIconSize;
private ArrayList<Integer> mThumbs;
private int mG;
public IconsAdapter(Context mContext, int iconsize, int g) {
this.mContext = mContext;
this.mIconSize = iconsize;
this.mG = g;
loadIcons();
}
@Override
public int getCount() {
return mThumbs.size();
}
@Override
public Object getItem(int position) {
return mThumbs.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ImageView imageView;
if (convertView == null) {
imageView = new ImageView(mContext);
imageView.setLayoutParams(new GridView.LayoutParams(mIconSize, mIconSize));
} else {
imageView = (ImageView) convertView;
}
imageView.setImageResource(mThumbs.get(position));
return imageView;
}
private void loadIcons() {
final Resources resources = getResources();
final String packageName = getApplication().getPackageName();
int folders = R.id.icon_grid_folders;
int apps = R.id.icon_grid_apps;
int system = R.id.icon_grid_system;
int google = R.id.icon_grid_google;
int text = R.id.icon_grid_text;
int games = R.id.icon_grid_games;
if (mG == folders) {
mThumbs = new ArrayList<Integer>();
addIcons(resources, packageName, R.array.icon_pack_folders);
}
if (mG == apps) {
mThumbs = new ArrayList<Integer>();
addIcons(resources, packageName, R.array.icon_pack_apps);
}
if (mG == games) {
mThumbs = new ArrayList<Integer>();
addIcons(resources, packageName, R.array.icon_pack_games);
}
if (mG == text) {
mThumbs = new ArrayList<Integer>();
addIcons(resources, packageName, R.array.icon_pack_text);
}
if (mG == google) {
mThumbs = new ArrayList<Integer>();
addIcons(resources, packageName, R.array.icon_pack_google);
}
if (mG == system) {
mThumbs = new ArrayList<Integer>();
addIcons(resources, packageName, R.array.icon_pack_system);
}
}
private void addIcons(Resources resources, String packageName, int list) {
final String[] extras = resources.getStringArray(list);
for (String extra : extras) {
int res = resources.getIdentifier(extra, "drawable", packageName);
if (res != 0) {
final int thumbRes = resources.getIdentifier(extra,"drawable", packageName);
if (thumbRes != 0) {
mThumbs.add(thumbRes);
}
}
}
}
}
}
package bigdx.clean.multi；
导入java.util.ArrayList；
导入bigdx.clean.multi.R；
导入android.app.Activity；
导入android.content.Context；
导入android.content.Intent；
导入android.content.res.Resources；
导入android.net.Uri；
导入android.os.Bundle；
导入android.view.view；
导入android.view.ViewGroup；
导入android.widget.AdapterView；
导入android.widget.BaseAdapter；
导入android.widget.GridView；
导入android.widget.ImageView；
公共类Icons2扩展活动{
公共Uri内容\u Uri；
创建时的公共void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
int iconSize=getResources（）.getDimensionPixelSize（android.R.dimen.app\u icon\u size）；
setContentView（R.layout.icon\u选择器）；
ExpandableHeightGridView g=（ExpandableHeightGridView）findViewById（R.id.icon\u grid\u文件夹）；
ExpandableHeightGridView g2=（ExpandableHeightGridView）findViewById（R.id.icon\u grid\u apps）；
ExpandableHeightGridView g3=（ExpandableHeightGridView）findViewById（R.id.icon\u grid\u google）；
ExpandableHeightGridView g4=（ExpandableHeightGridView）findViewById（R.id.icon\u grid\u system）；
ExpandableHeightGridView g5=（ExpandableHeightGridView）findViewById（R.id.icon\u grid\u games）；
ExpandableHeightGridView g6=（ExpandableHeightGridView）findViewById（R.id.icon\u grid\u text）；
g、 SETEXTEND（真）；
g2.setExpanded（真）；
g3.设置扩展（真）；
g4.setExpanded（真）；
g5.setExpanded（真）；
g6.setExpanded（真）；
g、 setNumColumns（GridView.AUTO_-FIT）；
g2.setNumColumns（GridView.AUTO_FIT）；
g3.setNumColumns（GridView.AUTO_FIT）；
g4.setNumColumns（GridView.AUTO_FIT）；
g5.setNumColumns（GridView.AUTO_FIT）；
g6.setNumColumns（GridView.AUTO_U-FIT）；
g、 设置列宽（iconSize）；
g2.设置列宽（iconSize）；
g3.设置列宽（iconSize）；
g4.设置列宽（iconSize）；
g5.设置列宽（iconSize）；
g6.设置列宽（iconSize）；
g、 setStretchMode（网格视图。拉伸间隔均匀）；
g2.setStretchMode（网格视图、拉伸、间距均匀）；
g3.设置拉伸模式（网格视图、拉伸、间距均匀）；
g4.设置拉伸模式（网格视图、拉伸、间距、均匀）；
g5.设置拉伸模式（网格视图、拉伸、间距、均匀）；
g6.设置拉伸模式（网格视图、拉伸、间距均匀）；
g、 设置垂直间距（iconSize/3）；
g2.设置垂直间距（iconSize/3）；
g3.设置垂直间距（iconSize/3）；
g4.设置垂直间距（iconSize/3）；
g5.设置垂直间距（iconSize/3）；
g6.设置垂直间距（iconSize/3）；
g、 setAdapter（新的iconAdapter（this，iconSize，g.getId（））；
setAdapter（新的iconAdapter（this，iconSize，g2.getId（））；
setAdapter（新的iconAdapter（this，iconSize，g3.getId（））；
setAdapter（新的iconAdapter（this，iconSize，g4.getId（））；
setAdapter（新的iconAdapter（this，iconSize，g5.getId（））；
setAdapter（新的iconAdapter（this，iconSize，g6.getId（））；
g、 setOnItemClickListener（新的AdapterView.OnItemClickListener（）{
私有Uri CONTENT_Uri=Uri.parse（“CONTENT://”+iconProvider.class.getCanonicalName（））；
@凌驾
public void onItemClick（AdapterView AdapterView，视图视图，整型位置，长id）{
String str=adapterView.getItemAtPosition（position.toString（）；
setResult（-1，新意图（null，Uri.withAppendedPath（this.CONTENT_Uri，str））；
完成（）；
}
});
g2.setOnItemClickListener（新的AdapterView.OnItemClickListener（）{
私有Uri CONTENT_Uri=Uri.parse（“CONTENT://”+iconProvider.class.getCanonicalName（））；
@凌驾
public void onItemClick（AdapterView AdapterView，视图视图，整型位置，长id）{
String str=adapterView.getItemAtPosition（position.toString（）；
setResult（-1，新意图（null，Uri.withAppendedPath（this.CONTENT_Uri，str））；
完成（）；
}
});
g3.setOnItemClickListener（新的AdapterView.OnItemClickListener（）{
私有Uri CONTENT_Uri=Uri.parse（“CONTENT://”+iconProvider.class.getCanonicalName（））；
@凌驾
public void onItemClick（AdapterView AdapterView，视图视图，整型位置，长id）{
String str=adapterView.getItemAtPosition（position.toString（）；
setResult（-1，新意图（null，Uri.withAppendedPath（this.CONTENT_Uri，str））；
完成（）；
}
});
g4.setOnItemClickListener（新的AdapterView.OnItemClickListener（）{
私有Uri CONTENT_Uri=Uri.parse（“CONTENT://”+iconProvider.class.getCanonicalName（））；
@凌驾
public void onItemClick（AdapterView AdapterView，视图视图，整型位置，长id）{
String str=adapterView.getItemAtPosition（position.toString（）；
塞特