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out\target\common\obj\JAVA_LIBRARIES\framework_intermediates\classes.jar
第一种是UnsatisfiedlinkError:dll名称。说明dll没有放到合适的位置。对于Android开发,我们一般把so放在libs目录下,但是还是会出现这个错误。根本原因System.loadLibrary函数会加载你指定的so,该so中需要链接的所有符号都需要能够链接到,如果有一个链接不成功,那么整个so也会加载失败。仔细检查so中需要的所有符号,确保其存在且在正确的位置上。
第二种是UnsatisfiedlinkError:方法名称。说明dll已经成功加载,但是方法名字错了。这个错误最最常见而且基本的解决方法是:仔细对比你的native 方法的原型确保与javah生成的原型一致 ...
linux的一些常用命令
- 博客分类:
- os
1.查看系统所有进程 ps -e
2.杀掉进程: 根据ps -e显示出的进程id, 用命令kill id号即可
3.sudo su 平时不想老加sudo来执行一些命令,可以直接使用用户权限
4.chown 777 目录/文件 为文件改权限
先写这些,一点点补充,linux命令不用忘的很快,以此以记之
@Override
public void onAttachedToWindow() {
// TODO Auto-generated method stub
super.onAttachedToWindow();
this.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
super.onAttachedToWindow();
}
intent home
- 博客分类:
- android
Intent mHomeIntent = new Intent(Intent.ACTION_MAIN, null);
mHomeIntent.addCategory(Intent.CATEGORY_HOME);
mHomeIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
startActivity(mHomeIntent);
public class ExampleAppWidgetProvider extends AppWidgetProvider {
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
final int N = appWidgetIds.length;
// Perform this loop procedure for each App Widget that belongs to this provider
...
imageView = (ImageView) findViewById(R.id.imageView1);
Matrix matrix = new Matrix();
matrix.postScale(0.5f, 0.5f);
matrix.postTranslate(100, 20);
matrix.postRotate(30);
imageView.setImageMatrix(matrix);
xml中要设置ImageView的属性为android:scaleType="matrix"
private ScrollView scrollViewGroup = null;
Handler handler = new Handler(){
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
scrollViewGroup.scrollTo(0, 0);
}
};
// Scroll the scroll-view to top
Message message = Message.obtain();
handler.send ...
android listView 滚动加载
- 博客分类:
- android
1.When the scrolling is stop(idle) to invoke our operation
listViewLocal.setOnScrollListener(new OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
if (scrollState == OnScrollListener.SCROLL_STATE_IDLE) {
if (view.getLastVisiblePositi ...
Date data get from database, String ---> long --> Date() and get the final We want
Date date = new Date(bean.createTime);
new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(date)
select * from table_name limit 10,100;
表示跳过10条,取100条结果。
<style name="actiondialog" parent="@android:style/Theme.Dialog">
<item name="android:windowFrame">@null</item>
<item name="android:windowIsFloating">false</item>
<item name="android:windowIsTranslucent">true&l ...
// Deal with big image that size more 8M
BitmapFactory.Options option = new BitmapFactory.Options();
option.inTempStorage = new byte[1024*1024*5];
Bitmap bm = BitmapFactory.decodeFile(inputStream,cwj);
// We can also compute sample
android 虚拟机 内存 设置
- 博客分类:
- android
// Add this property into C:\Documents and Settings\Administrator\.android\avd\480_800.avd/config.ini
hw.ramSize=256
/// how to scroll to a position in a listView
int index = mList.getFirstVisiblePosition();
View v = mList.getChildAt(0);
int top = (v == null) ? 0 : v.getTop();
// ...
// restore
mList.setSelectionFromTop(index, top);