实际上我想创建一个getGlobalEvent应用程序并通过另一个自定义应用程序控制该事件。有没有办法这样做。我可以从特定应用程序获取全局事件吗?它就像一个将自定义应用程序锁定在黑莓中的应用程序,如果你在锁定应用程序列表中添加以下应用程序并输入密码,那么当你尝试打开该应用程序时,它会要求你在锁定应用程序中设置的密码。
答案 0 :(得分:7)
不得不说,一个应用程序中可以有多个进程,因此我们将根据模块名称执行检查:
private String getModuleNameByProcessId(int id) {
String result = null;
ApplicationManager appMan = ApplicationManager.getApplicationManager();
ApplicationDescriptor appDes[] = appMan.getVisibleApplications();
for (int i = 0; i < appDes.length; i++) {
if (appMan.getProcessId(appDes[i]) == id) {
result = appDes[i].getModuleName();
break;
}
}
return result;
}
是的,ApplicationManager中没有requestBackground()...所以你可以做的是requestForeground()下一个不在前台的最佳应用程序,这会将活动应用程序移动到后台!您甚至可以使用requestForegroundForConsole():
打开主屏幕 protected int switchForegroundModule() {
int id = -1;
ApplicationManager appMan = ApplicationManager.getApplicationManager();
ApplicationDescriptor appDes[] = appMan.getVisibleApplications();
for (int i = 0; i < appDes.length; i++) {
if (!appDes[i].getModuleName().equalsIgnoreCase(STR_MODULE_NAME)) {
id = appMan.getProcessId(appDes[i]);
appMan.requestForeground(id);
// give a time to foreground application
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
break;
}
}
return id;
}
只需输入密码即可扩展Dialog,更容易使用结果:
class PaswordDialog extends Dialog {
private BasicEditField mPwdField = new BasicEditField();
public PaswordDialog() {
super(Dialog.D_OK_CANCEL, "Enter password", Dialog.CANCEL, null,
Dialog.FIELD_HCENTER);
add(mPwdField);
}
public String getPassword() {
return mPwdField.getText();
}
}
密码检查如下:
private boolean checkPassword() {
boolean result = false;
final PaswordDialog pwdDlg = new PaswordDialog();
invokeAndWait(new Runnable() {
public void run() {
Ui.getUiEngine().pushGlobalScreen(pwdDlg, 0,
UiEngine.GLOBAL_MODAL);
}
});
result = ((Dialog.OK == pwdDlg.getSelectedValue()) && pwdDlg
.getPassword().equalsIgnoreCase(STR_PASSWORD));
return result;
}
阻止地址簿应用的示例:
public class LockMainApp extends Application {
private static final String STR_MODULE_NAME = "net_rim_bb_addressbook_app";
private static final String STR_PASSWORD = "12345";
int mFGProcessId = -1;
public LockMainApp() {
Timer timer = new Timer();
timer.schedule(mCheckForeground, 1000, 1000);
}
public static void main(String[] args) {
LockMainApp app = new LockMainApp();
app.enterEventDispatcher();
}
TimerTask mCheckForeground = new TimerTask() {
public void run() {
int id = ApplicationManager
.getApplicationManager().getForegroundProcessId();
if (id != mFGProcessId) {
mFGProcessId= id;
String moduleName = getModuleNameByProcessId(mFGProcessId);
if (moduleName.equalsIgnoreCase(STR_MODULE_NAME)) {
if (!checkPassword())
mFGProcessId = switchForegroundModule();
}
}
};
};
}