Java 应用程序因ImageAdapter/Gridview而崩溃
每次我测试我的应用程序时,它都会在splashscreen之后崩溃,并出现如下错误:Java 应用程序因ImageAdapter/Gridview而崩溃,java,android,gridview,crash,Java,Android,Gridview,Crash,每次我测试我的应用程序时,它都会在splashscreen之后崩溃,并出现如下错误: 02-14 13:03:29.305: A/libc(9935): Fatal signal 11 (SIGSEGV) at 0x0000015c (code=1), thread 9935 (ter.planyourday) 及 我的ImageAdapter如下所示: public class ImageAdapter extends BaseAdapter { private Context
02-14 13:03:29.305: A/libc(9935): Fatal signal 11 (SIGSEGV) at 0x0000015c (code=1), thread 9935 (ter.planyourday)
及
我的ImageAdapter如下所示:
public class ImageAdapter extends BaseAdapter {
private Context context;
private final String[] buttonValues;
public ImageAdapter(Context context, String[] buttonValues) {
this.context = context;
this.buttonValues = buttonValues;
}
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View gridView;
if (convertView == null) {
gridView = new View(context);
// get layout from mobile.xml
gridView = inflater.inflate(R.layout.mobile, null);
// set image based on selected text
ImageView imageView = (ImageView) gridView
.findViewById(R.id.grid_item_image);
String button = buttonValues[position];
if (button.equals("homework")) {
imageView.setImageResource(R.drawable.button_homework);
} else if (button.equals("schedule")) {
imageView.setImageResource(R.drawable.button_schedule);
} else if(button.equals("planner")) {
imageView.setImageResource(R.drawable.button_planner);
}else{
imageView.setImageResource(R.drawable.button_settings);
}
} else {
gridView = (View) convertView;
}
return gridView;
}
@Override
public int getCount() {
return buttonValues.length;
}
@Override
public Object getItem(int position) {
return null;
}
@Override
public long getItemId(int position) {
return 0;
}
}
这里是主要活动中的方法:
static final String[] MOBILE_OS = new String[] { "homework", "schedule",
"planner", "settings" };
private void setGridView() {
gridView = (GridView) findViewById(R.id.gridView1);
gridView.setAdapter(new ImageAdapter(this, MOBILE_OS));
gridView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View v,
int position, long id) {
switch (position) {
case 0:
Intent startHomework = new Intent(HomeScreen.this,
HomeworkScreen.class);
HomeScreen.this.startActivity(startHomework);
break;
case 1:
Intent startSchedule = new Intent(HomeScreen.this,
ScheduleScreen.class);
HomeScreen.this.startActivity(startSchedule);
break;
case 2:
Intent startPlanner = new Intent(HomeScreen.this,
PlannerScreen.class);
HomeScreen.this.startActivity(startPlanner);
break;
case 3:
Intent startSettings = new Intent(HomeScreen.this,
SettingScreen.class);
HomeScreen.this.startActivity(startSettings);
break;
}
}
});
}
static final String[]MOBILE_OS=新字符串[]{“家庭作业”、“日程安排”,
“规划器”、“设置”};
私有void setGridView(){
gridView=(gridView)findViewById(R.id.gridView1);
setAdapter(新的ImageAdapter(这个是MOBILE_OS));
setOnItemClickListener(新的OnItemClickListener(){
public void onItemClick(AdapterView父视图、视图v、,
内部位置,长id){
开关(位置){
案例0:
Intent starthomwork=新Intent(主屏幕。此,
家庭作业屏幕(类);
主屏幕.this.startActivity(starthomwork);
打破
案例1:
意向开始计划=新意向(主屏幕。此,
ScheduleScreen.class);
主屏幕.this.startActivity(startSchedule);
打破
案例2:
Intent startPlanner=新的Intent(主屏幕。此,
(3),;
主屏幕.this.startActivity(startPlanner);
打破
案例3:
意向开始设置=新意向(主屏幕。此,
设置屏幕(类);
主屏幕.this.startActivity(startSettings);
打破
}
}
});
}
我希望有人能帮助我
提前感谢;)
Wouter这是因为,您没有正确使用图像的延迟加载 正确的方法是:
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View gridView;
ImageView imageView;
String button;
if (convertView == null) {
gridView = new View(context);
// get layout from mobile.xml
gridView = inflater.inflate(R.layout.mobile, null);
// set image based on selected text
imageView = (ImageView) gridView
.findViewById(R.id.grid_item_image);
} else {
gridView = (View) convertView;
}
button = buttonValues[position];
if (button.equals("homework")) {
imageView.setImageResource(R.drawable.button_homework);
} else if (button.equals("schedule")) {
imageView.setImageResource(R.drawable.button_schedule);
} else if(button.equals("planner")) {
imageView.setImageResource(R.drawable.button_planner);
}else{
imageView.setImageResource(R.drawable.button_settings);
}
return gridView;
}
编辑:现在用此getView()替换getView()
即使这样也不是最好的办法。你应该创建一个能正确保存视图的支架
为了更好地理解如何重用垃圾收集视图,请参见以下内容:
当你面对OME时,你也可以考虑我对同一类型问题的回答。
谢谢。如果您使用的是4.1.2或更高版本的ics,您的问题可能与此时的问题状态有关
这里解释说,最新版本的android有一种不同的垃圾收集器,它以不同的方式处理大数据。我也遇到了同样的问题,通过使用更小的图像解决了这个问题。我希望这能解决您的问题。我已编辑了我的答案。也可以考虑使用我第一个链接中提到的保持器。还要处理button和imageView的NPE。好的,谢谢,但现在它说我必须初始化imageView变量。今天我可能会用一个支架重写我的适配器。这很可能就是问题所在——Android中的一个bug。4.1到处都是它们。至于图像大小,我的图像是160px120px,所以实际上非常小。顺便说一句,什么是“ICS”(如链接中所述)?是的,您的图像足够小,但请较小的图像尝试一下,因为这是软件的世界。“ICS”是“冰激凌Sandwitch”,它是安卓的4.0版本。是的,我写了“4.1.2”,这是错误的。我一定是写了“安卓”而不是“ics”。
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View gridView;
ImageView imageView;
String button;
if (convertView == null) {
gridView = new View(context);
// get layout from mobile.xml
gridView = inflater.inflate(R.layout.mobile, null);
// set image based on selected text
imageView = (ImageView) gridView
.findViewById(R.id.grid_item_image);
} else {
gridView = (View) convertView;
}
button = buttonValues[position];
if (button.equals("homework")) {
imageView.setImageResource(R.drawable.button_homework);
} else if (button.equals("schedule")) {
imageView.setImageResource(R.drawable.button_schedule);
} else if(button.equals("planner")) {
imageView.setImageResource(R.drawable.button_planner);
}else{
imageView.setImageResource(R.drawable.button_settings);
}
return gridView;
}