我的应用程序由TabHost和ActivityGroup组成,其中包含嵌套的活动。当ActivityGroup的Activity创建或恢复时,立即显示软键盘。我需要它只显示我点击EditText。我的ActivityGroup类:
public class LoginTabGroup extends ActivityGroup {
private ArrayList<String> mIdList;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (mIdList == null) mIdList = new ArrayList<String>();
}
/**
* This is called when a child activity of this one calls its finish method.
* This implementation calls {@link LocalActivityManager#destroyActivity} on the child activity
* and starts the previous activity.
* If the last child activity just called finish(),this activity (the parent),
* calls finish to finish the entire group.
*/
@Override
public void finishFromChild(Activity child) {
LocalActivityManager manager = getLocalActivityManager();
int index = mIdList.size()-1;
if (index < 1) {
finish();
return;
}
manager.destroyActivity(mIdList.get(index), true);
mIdList.remove(index);
index--;
String lastId = mIdList.get(index);
Intent lastIntent = manager.getActivity(lastId).getIntent();
Window newWindow = manager.startActivity(lastId, lastIntent);
newWindow.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
Log.i("ActivityGroup","finishFromChild method");
setContentView(newWindow.getDecorView());
}
/**
* Starts an Activity as a child Activity to this.
* @param Id Unique identifier of the activity to be started.
* @param intent The Intent describing the activity to be started.
* @throws android.content.ActivityNotFoundException.
*/
public void startChildActivity(String Id, Intent intent)
{
Window window = getLocalActivityManager().startActivity(Id,intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP));
window.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN);
Log.i("ActivityGroup","startActivity method");
if (window != null) {
mIdList.add(Id);
setContentView(window.getDecorView());
}
}
/**
* The primary purpose is to prevent systems before android.os.Build.VERSION_CODES.ECLAIR
* from calling their default KeyEvent.KEYCODE_BACK during onKeyDown.
*/
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
//preventing default implementation previous to android.os.Build.VERSION_CODES.ECLAIR
return true;
}
return super.onKeyDown(keyCode, event);
}
/**
* Overrides the default implementation for KeyEvent.KEYCODE_BACK
* so that all systems call onBackPressed().
*/
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
onBackPressed();
return true;
}
return super.onKeyUp(keyCode, event);
}
/**
* If a Child Activity handles KeyEvent.KEYCODE_BACK.
* Simply override and add this method.
*/
@Override
public void onBackPressed () {
int length = mIdList.size();
if ( length > 1) {
Activity current = getLocalActivityManager().getActivity(mIdList.get(length-1));
current.finish();
}
}
}
我尝试这样做newWindow.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
在新窗口创建时,但它没有帮助。像
这样的方法 InputMethodManager imm = (InputMethodManager)getSystemService(
Context.INPUT_METHOD_SERVICE);
imm.toggleSoftInput(InputMethodManager.HIDE_IMPLICIT_ONLY, 0);
嵌套活动中的工作正常,但在创建活动或恢复键盘时显示,然后立即隐藏。由于键盘闪烁,我不认为这是好的解决方案。我还尝试添加AndroidManifest
android:windowSoftInputMode="stateAlwaysHidden"
android:configChanges="keyboardHidden|orientation"
在嵌套的Activity,ActivityGroups中。但结果仍然相同。我该如何解决这个问题?
答案 0 :(得分:0)
这是因为布局中的edittexts是可聚焦元素,如果其他元素都没有请求,则请求关注启动。解决方案很简单:在所有布局文件中,在容器布局中将focusable和focusableInTouchMode设置为true,因此它将首先请求焦点并且不会聚焦编辑文本。然后你可以删除你隐含的隐藏)
android:focusable="true"
android:focusableInTouchMode="true"
答案 1 :(得分:0)
我用hack来解决这个问题。在ActivityGroup的类和子活动中我都放了
InputMethodManager imm = (InputMethodManager)getSystemService(
Context.INPUT_METHOD_SERVICE);
imm.toggleSoftInput(InputMethodManager.HIDE_IMPLICIT_ONLY, 0);
在onCreate()和onResume()方法之前。如果知道的人告诉我更有效的解决方案,我将不胜感激。
答案 2 :(得分:0)
ActivityGroup使用是非常糟糕和缓慢的解决方案。我决定在标签中使用FragmentActivities和嵌套片段。然而,有时软键盘会在Activity启动时显示。我在没有图像的标签之一中将文本设置到中心。我想,它叫软键盘显示。我的修复(在TabActivity类中):
final View view = tabHost.getTabWidget().getChildTabViewAt(1);
if ( view != null ) {
// view.getLayoutParams().height *= 0.66;
InputMethodManager imm2 = (InputMethodManager)getSystemService(
Context.INPUT_METHOD_SERVICE);
imm2.toggleSoftInput(InputMethodManager.HIDE_IMPLICIT_ONLY, 0);
// get title text view
final View textView = view.findViewById(android.R.id.title);
if ( textView instanceof TextView ) {
// just in case check the type
// center text
((TextView) textView).setGravity(Gravity.CENTER);
// wrap text
((TextView) textView).setSingleLine(false);
// explicitly set layout parameters
textView.getLayoutParams().height = ViewGroup.LayoutParams.FILL_PARENT;
textView.getLayoutParams().width = ViewGroup.LayoutParams.WRAP_CONTENT;
}
}