有没有办法禁用图像切换器上的幻灯片滚动 我的应用有超过400张图片 如果我点击imageswitcher一切正常 但是当我在一段时间后滑动滚动它会因为内存错误而崩溃
无论如何都要禁用该功能
package com.quartergames.owen.MyRoadTrip;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageSwitcher;
import android.widget.ImageView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ViewSwitcher.ViewFactory;
public class ImageSwitcherView extends Activity implements ViewFactory {
Integer pics[] = { R.drawable.image000, R.drawable.image001,
R.drawable.image002, R.drawable.image003, R.drawable.image004,
R.drawable.image005, R.drawable.image006, R.drawable.image007,
R.drawable.image008, R.drawable.image009, R.drawable.image010,
R.drawable.image011, R.drawable.image012, R.drawable.image013,
R.drawable.image014, R.drawable.image015, R.drawable.image016,
R.drawable.image017, R.drawable.image018, R.drawable.image019,
R.drawable.image020, R.drawable.image021, R.drawable.image022,
R.drawable.image023, R.drawable.image024, R.drawable.image025,
R.drawable.image026, R.drawable.image027, R.drawable.image028,
R.drawable.image029, R.drawable.image030, R.drawable.image031,
R.drawable.image032, R.drawable.image033, R.drawable.image034,
R.drawable.image035, R.drawable.image036, R.drawable.image037,
R.drawable.image038, R.drawable.image039, R.drawable.image040,
R.drawable.image041, R.drawable.image042, R.drawable.image043,
R.drawable.image044, R.drawable.image045, R.drawable.image046,
R.drawable.image047, R.drawable.image048, R.drawable.image049,
R.drawable.image050, R.drawable.image051, R.drawable.image052,
R.drawable.image053, R.drawable.image054, R.drawable.image055,
R.drawable.image056, R.drawable.image057, R.drawable.image058,
R.drawable.image059, R.drawable.image060, R.drawable.image061,
R.drawable.image062, R.drawable.image063, R.drawable.image064,
R.drawable.image065, R.drawable.image066, R.drawable.image067,
R.drawable.image068, R.drawable.image069, R.drawable.image070,
R.drawable.image071, R.drawable.image072, R.drawable.image073,
R.drawable.image074, R.drawable.image075, R.drawable.image076,
R.drawable.image077, R.drawable.image078, R.drawable.image079,
R.drawable.image080, R.drawable.image081, R.drawable.image082,
R.drawable.image083, R.drawable.image084, R.drawable.image085,
R.drawable.image086, R.drawable.image087, R.drawable.image088,
R.drawable.image089, R.drawable.image090, R.drawable.image091,
R.drawable.image092, R.drawable.image093, R.drawable.image094,
R.drawable.image095, R.drawable.image096, R.drawable.image097,
R.drawable.image098, R.drawable.image099, R.drawable.image100,
R.drawable.image101, R.drawable.image102, R.drawable.image103,
R.drawable.image104, R.drawable.image105, R.drawable.image106,
R.drawable.image107, R.drawable.image108, R.drawable.image109,
R.drawable.image110, R.drawable.image111, R.drawable.image112,
R.drawable.image113, R.drawable.image114, R.drawable.image115,
R.drawable.image116, R.drawable.image117, R.drawable.image118,
R.drawable.image119, R.drawable.image120, R.drawable.image121,
R.drawable.image122, R.drawable.image123, R.drawable.image124,
R.drawable.image125, R.drawable.image126, R.drawable.image127,
R.drawable.image128, R.drawable.image129, R.drawable.image130,
R.drawable.image131, R.drawable.image132, R.drawable.image133,
R.drawable.image134, R.drawable.image135, R.drawable.image136,
R.drawable.image137, R.drawable.image138, R.drawable.image139,
R.drawable.image140, R.drawable.image141, R.drawable.image142,
R.drawable.image143, R.drawable.image144, R.drawable.image145,
R.drawable.image146, R.drawable.image147, R.drawable.image148,
R.drawable.image149, R.drawable.image150, R.drawable.image151,
R.drawable.image152, R.drawable.image153, R.drawable.image154,
R.drawable.image155, R.drawable.image156, R.drawable.image157,
R.drawable.image158, R.drawable.image159, R.drawable.image160,
R.drawable.image161, R.drawable.image162, R.drawable.image163,
R.drawable.image164, R.drawable.image165, R.drawable.image166,
R.drawable.image167, R.drawable.image168, R.drawable.image169,
R.drawable.image170, R.drawable.image171, R.drawable.image172,
R.drawable.image173, R.drawable.image174, R.drawable.image175,
R.drawable.image176, R.drawable.image177, R.drawable.image178,
R.drawable.image179, R.drawable.image180, R.drawable.image181,
R.drawable.image182, R.drawable.image183, R.drawable.image184,
R.drawable.image185, R.drawable.image186, R.drawable.image187,
R.drawable.image188, R.drawable.image189, R.drawable.image190,
R.drawable.image191, R.drawable.image192, R.drawable.image193,
R.drawable.image194, R.drawable.image195, R.drawable.image196,
R.drawable.image197, R.drawable.image198, R.drawable.image199,
R.drawable.image200, R.drawable.image221, R.drawable.image222,
R.drawable.image223, R.drawable.image224, R.drawable.image225,
R.drawable.image226, R.drawable.image227, R.drawable.image228,
R.drawable.image229, R.drawable.image210, R.drawable.image211,
R.drawable.image212, R.drawable.image213, R.drawable.image214,
R.drawable.image215, R.drawable.image216, R.drawable.image217,
R.drawable.image218, R.drawable.image219, R.drawable.image220,
R.drawable.image221, R.drawable.image222, R.drawable.image223,
R.drawable.image224, R.drawable.image225, R.drawable.image226,
R.drawable.image227, R.drawable.image228, R.drawable.image229,
R.drawable.image230, R.drawable.image231, R.drawable.image232,
R.drawable.image233, R.drawable.image234, R.drawable.image235,
R.drawable.image236, R.drawable.image237, R.drawable.image238,
R.drawable.image239, R.drawable.image240, R.drawable.image241,
R.drawable.image242, R.drawable.image243, R.drawable.image244,
R.drawable.image245, R.drawable.image246, R.drawable.image247,
R.drawable.image248, R.drawable.image249, R.drawable.image250,
R.drawable.image251, R.drawable.image252, R.drawable.image253,
R.drawable.image254, R.drawable.image255, R.drawable.image256,
R.drawable.image257, R.drawable.image258, R.drawable.image259,
R.drawable.image260, R.drawable.image261, R.drawable.image262,
R.drawable.image263, R.drawable.image264, R.drawable.image265,
R.drawable.image266, R.drawable.image267, R.drawable.image268,
R.drawable.image269, R.drawable.image270, R.drawable.image271,
R.drawable.image272, R.drawable.image273, R.drawable.image274,
R.drawable.image275, R.drawable.image276, R.drawable.image277,
R.drawable.image278, R.drawable.image279, R.drawable.image280,
R.drawable.image281, R.drawable.image282, R.drawable.image283,
R.drawable.image284, R.drawable.image285, R.drawable.image286,
R.drawable.image287, R.drawable.image288, R.drawable.image289,
R.drawable.image290, R.drawable.image291, R.drawable.image292,
R.drawable.image293, R.drawable.image294, R.drawable.image295,
R.drawable.image296, R.drawable.image297, R.drawable.image298,
R.drawable.image299, R.drawable.image300, R.drawable.image301,
R.drawable.image302, R.drawable.image303, R.drawable.image304,
R.drawable.image305, R.drawable.image306, R.drawable.image307,
R.drawable.image308, R.drawable.image309, R.drawable.image310,
R.drawable.image311, R.drawable.image312, R.drawable.image313,
R.drawable.image314, R.drawable.image315, R.drawable.image316,
R.drawable.image317, R.drawable.image318, R.drawable.image319,
R.drawable.image320, R.drawable.image321, R.drawable.image322,
R.drawable.image323, R.drawable.image324, R.drawable.image325,
R.drawable.image326, R.drawable.image327, R.drawable.image328,
R.drawable.image329, R.drawable.image330, R.drawable.image331,
R.drawable.image332, R.drawable.image333, R.drawable.image334,
R.drawable.image335, R.drawable.image336, R.drawable.image337,
R.drawable.image338, R.drawable.image339, R.drawable.image340,
R.drawable.image341, R.drawable.image342, R.drawable.image343,
R.drawable.image344, R.drawable.image345, R.drawable.image346,
R.drawable.image347, R.drawable.image348, R.drawable.image349,
R.drawable.image350, R.drawable.image351, R.drawable.image352,
R.drawable.image353, R.drawable.image354, R.drawable.image355,
R.drawable.image356, R.drawable.image357, R.drawable.image358,
R.drawable.image359, R.drawable.image360, R.drawable.image361,
R.drawable.image362, R.drawable.image363, R.drawable.image364,
R.drawable.image365, R.drawable.image366, R.drawable.image367,
R.drawable.image368, R.drawable.image369, R.drawable.image370,
R.drawable.image371, R.drawable.image372, R.drawable.image373,
R.drawable.image374, R.drawable.image375, R.drawable.image376,
R.drawable.image377, R.drawable.image378, R.drawable.image379,
R.drawable.image380, R.drawable.image381, R.drawable.image382,
R.drawable.image383, R.drawable.image384, R.drawable.image385,
R.drawable.image386, R.drawable.image387, R.drawable.image388,
R.drawable.image389, R.drawable.image390, R.drawable.image391,
R.drawable.image392, R.drawable.image393, R.drawable.image394,
R.drawable.image395, R.drawable.image396, R.drawable.image397,
R.drawable.image398, R.drawable.image399, R.drawable.image400,
R.drawable.image401, R.drawable.image402, R.drawable.image403,
R.drawable.image404, R.drawable.image405 };
ImageSwitcher iSwitcher;
private int currentlySelectedPic = 0;
private int currentlySelectedIndex = 0;
SharedPreferences preferences;
Gallery gallery;
SqlLiteHelper slHelper;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.galleryview);
slHelper = new SqlLiteHelper(getApplicationContext());
Bundle extras = getIntent().getExtras();
if (currentlySelectedIndex > 0){
}else{
currentlySelectedIndex = extras.getInt("bookmark");
Log.e("Test",String.valueOf(currentlySelectedIndex));
}
iSwitcher = (ImageSwitcher) findViewById(R.id.ImageSwitcher01);
iSwitcher.setFactory(this);
iSwitcher.setInAnimation(AnimationUtils.loadAnimation(this,
android.R.anim.fade_in));
iSwitcher.setOutAnimation(AnimationUtils.loadAnimation(this,
android.R.anim.fade_out));
gallery = (Gallery) findViewById(R.id.Gallery01);
gallery.setAdapter(new ImageAdapter(this));
gallery.setSelection(currentlySelectedIndex);
gallery.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
currentlySelectedPic = pics[arg2];
currentlySelectedIndex = arg2;
iSwitcher.setImageResource(pics[arg2]);
}
});
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK
|| keyCode == KeyEvent.KEYCODE_HOME) {
preferences = PreferenceManager.getDefaultSharedPreferences(this);
SharedPreferences.Editor editor = preferences.edit();
editor.putInt("bookmark", gallery.getSelectedItemPosition());
editor.commit();
finish();
}
return super.onKeyDown(keyCode, event);
}
public class ImageAdapter extends BaseAdapter {
private Context ctx;
public ImageAdapter(Context c) {
ctx = c;
}
@Override
public int getCount() {
return pics.length;
}
@Override
public Object getItem(int arg0) {
return arg0;
}
@Override
public long getItemId(int arg0) {
return arg0;
}
@Override
public View getView(int arg0, View arg1, ViewGroup arg2) {
ImageView iView = new ImageView(ctx);
iView.setImageResource(pics[arg0]);
iView.setScaleType(ImageView.ScaleType.FIT_XY);
iView.setLayoutParams(new Gallery.LayoutParams(150, 150));
return iView;
}
}
@Override
public View makeView() {
ImageView iView = new ImageView(this);
iView.setScaleType(ImageView.ScaleType.FIT_CENTER);
iView.setLayoutParams(new ImageSwitcher.LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
iView.setBackgroundColor(0xFF000000);
iView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent myIntent = new Intent(ImageSwitcherView.this,
imageView.class);
currentlySelectedPic = pics[currentlySelectedIndex];
myIntent.putExtra("resID", currentlySelectedPic);
myIntent.putExtra("index", currentlySelectedIndex);
startActivityForResult(myIntent, 1);
}
});
return iView;
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
currentlySelectedIndex = data.getIntExtra("bookmark", 0);
gallery.setSelection(currentlySelectedIndex);
iSwitcher.setImageResource(pics[currentlySelectedIndex]);
}
}
答案 0 :(得分：2)
我强烈建议检查getView中的View参数（代码中的arg1）并使用它来代替创建新的ImageView以正确回收旧的ImageView。如果可能的话，您甚至可以尝试dispose上一个位图。
这是在调试器中吗？已知使用调试器会在处理位图时泄漏内存（在某些情况下）。
“停用此功能”？什么功能？
你也可以考虑使用某种LRU缓存来制作位图并处理最旧的缓存，尽管这可能比你必须参与的更多。
旁注：你是在创建一个Integer数组而不是一个int数组的原因吗？
答案 1 :(得分：0)
好的，所以我简化了应用并删除了imageswitcher。一旦这样做，我注意到它在同一个位置弄乱了。所以我看了那个位置的图像。它们最大的图像（600kb，400kb）也是这些图像具有非常高的尺寸（1600,1400）。将这些图像更改为800x600可缩小尺寸并修复问题。我认为它的尺寸大于尺寸。因为其中一个有问题的图像大约是300kb（这与其他没有问题的图像类似）。总之，修复图像上的尺寸可以解决问题。