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Open soft keyboard programmatically

由 |▌冷眼眸甩不掉的悲伤 提交于 2019-12-17 03:34:43

问题


I have an activity with no child widgets for it and the corresponding xml file is,

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/myLayout"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:focusable="true"
>
</LinearLayout>

and I want to open soft keyboard programmatically while the activity gets start.and what I've tried upto now is,

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
    if (inputMethodManager != null) {
        inputMethodManager.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
    }

Give me some guidance.


回答1:


I have used the following lines to display the soft keyboard manually inside the onclick event, and the keyboard is visible.

InputMethodManager inputMethodManager =
    (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
inputMethodManager.toggleSoftInputFromWindow(
    linearLayout.getApplicationWindowToken(),
    InputMethodManager.SHOW_FORCED, 0);

But I'm still not able to open this while the activity gets opened, so are there any solution for this?




回答2:


In your manifest file, try adding the following to the <activity> that you want to show the keyboard when the activity starts:

android:windowSoftInputMode="stateVisible"

This should cause the keyboard to become visible when the activity starts.

For more options, checkout the documentation.




回答3:


Please follow the below code. I am sure your problem will be solved. 

if (imm != null){
        imm.toggleSoftInput(InputMethodManager.SHOW_FORCED,0);
   }



回答4:


This is works

<activity
    ...
    android:windowSoftInputMode="stateVisible" >
</activity>

or

getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);



回答5:


All I needed was to expose the keyboard, in a very precise moment. This worked for me! Thanks Benites. 

    private Handler mHandler= new Handler();

And in the very precise moment:

    mHandler.post(
    new Runnable() {
        public void run() {
            InputMethodManager inputMethodManager =  (InputMethodManager)getSystemService(INPUT_METHOD_SERVICE);
            inputMethodManager.toggleSoftInputFromWindow(yourEditText.getApplicationWindowToken(), InputMethodManager.SHOW_FORCED, 0);
            yourEditText.requestFocus();
        }
    });



回答6:


I have used the following lines to display the soft keyboard manually inside the onclick event.

public void showKeyboard(final EmojiconEditText ettext){
          ettext.requestFocus();
          ettext.postDelayed(new Runnable(){
            @Override public void run(){
              InputMethodManager keyboard=(InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
              keyboard.showSoftInput(ettext,0);
            }
          }
        ,200);
        }



回答7:


Put that in onResume method:

findViewById(R.id.root_view_of_your_activity_layout).post(
new Runnable() {
    public void run() {
        InputMethodManager inputMethodManager =  (InputMethodManager)getSystemService(INPUT_METHOD_SERVICE);
        inputMethodManager.toggleSoftInputFromWindow(yourEditText.getApplicationWindowToken(),     InputMethodManager.SHOW_FORCED, 0);
        yourEditText.requestFocus();
    }
});

the runnable is needed because when the OS fires the onResume method you can't be sure that all the views where draw, so the post method called from your root layout makes it wait till every view is ready.




回答8:


in onCreate method of activity or onActivityCreated of a fragment

....
view.getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
        @Override
        public boolean onPreDraw() {
            view.removeOnPreDrawListener(this);
            InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
            imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);

            // !Pay attention to return `true`
            // Chet Haase told to 
            return true;
        }
    });



回答9:


seems like this is working

 protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_patientid);

        editText = (EditText)findViewById(R.id.selectPatient);
        //editText.requestFocus(); //works without that

    }

@Override
    protected void onResume() {

        findViewById(R.id.selectPatient).postDelayed(
        new Runnable() {
            public void run() {
                 editText.requestFocus();
                InputMethodManager inputMethodManager =  (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
                inputMethodManager.showSoftInput(editText,InputMethodManager.SHOW_IMPLICIT);
            }
        },100);
        super.onResume();
    }

seems this works better: in manifest:

<application>
    <activity
        android:name="com.doodkin.myapp.ReportActivity"
        android:label="@string/title_activity_report"
        android:screenOrientation="sensor" 
        android:windowSoftInputMode="stateHidden" > // add this or stateVisible
    </activity>
</application>

seems the manifest working in android 4.2.2 but not working in android 4.0.3




回答10:


I have used like this to show the soft keyboard programatically and this is worked for me to prevent the auto resize of the screen while launching the keyboard.

In manifest:

<activity android:name="XXXActivity" android:windowSoftInputMode="adjustPan">
</activity>

In XXXActvity:

EditText et =  (EditText))findViewById(R.id.edit_text);  
  Timer timer = new Timer();
            TimerTask task = new TimerTask() {

                @Override
                public void run() {
                    InputMethodManager inputMethodManager=(InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
                    inputMethodManager.toggleSoftInputFromWindow(et.getApplicationWindowToken(), InputMethodManager.SHOW_FORCED, 0);

                }
            };
            timer.schedule(task, 200);

I assume this will save others time to search for this problem.




回答11:


InputMethodManager inputMethodManager=(InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
            inputMethodManager.toggleSoftInput(InputMethodManager.SHOW_FORCED,0);



回答12:


Kotlin

fun hideKeyboard(activity: Activity) {
    val view = activity.currentFocus
    val methodManager = activity.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
    assert(view != null)
    methodManager.hideSoftInputFromWindow(view!!.windowToken, InputMethodManager.HIDE_NOT_ALWAYS)
}

private fun showKeyboard(activity: Activity) {
    val view = activity.currentFocus
    val methodManager = activity.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
    assert(view != null)
    methodManager.showSoftInput(view, InputMethodManager.SHOW_IMPLICIT)
}

Java

public static void hideKeyboard(Activity activity) {
    View view = activity.getCurrentFocus();
    InputMethodManager methodManager = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
    assert methodManager != null && view != null;
    methodManager.hideSoftInputFromWindow(view.getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
}

private static void showKeyboard(Activity activity) {
    View view = activity.getCurrentFocus();
    InputMethodManager methodManager = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
    assert methodManager != null && view != null;
    methodManager.showSoftInput(view, InputMethodManager.SHOW_IMPLICIT);
}



回答13:


I used it as singleton like:

public static void showSoftKeyboard(final Context context, final EditText editText) {
        try {
            editText.requestFocus();
            editText.postDelayed(
                    new Runnable() {
                        @Override
                        public void run() {
                            InputMethodManager keyboard = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
                            keyboard.showSoftInput(editText, 0);
                        }
                    }
                    , 200);
        } catch (NullPointerException npe) {
            npe.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

Use it in your activity like:

showSoftKeyboard(this, yourEditTextToFocus);



回答14:


InputMethodManager.SHOW_FORCED isn't good choice. If you use this setting you should manage hiding keyboard state. My suggestion is like this;

    public void showSoftKeyboard(View view) {
    InputMethodManager inputMethodManager = (InputMethodManager) getActivity().getSystemService(Activity.INPUT_METHOD_SERVICE);
    view.requestFocus();
    inputMethodManager.toggleSoftInput(InputMethodManager.SHOW_IMPLICIT, 0);
}

Also, you can focus on view (usually EditText) taking parameters it. This makes it a more useful function

for more info about InputMethodManager.SHOW_IMPLICIT and SHOW_FORCED; InputMethodManager




回答15:


This is the required source code :

public static void openKeypad(final Context context, final View v) 
 {
new Handler().postDelayed(new Runnable() 
{
    @Override
    public void run() 
    {
        InputMethodManager inputManager =   (InputMethodManager)context.getSystemService(Context.INPUT_METHOD_SERVICE); 
        inputManager.showSoftInput(v, InputMethodManager.SHOW_IMPLICIT);    
        Log.e("openKeypad", "Inside Handler");
    }
},300);}

For details , Please go through this link. This helped me. https://github.com/Nikhillosalka/Keyboard/blob/master/README.md




回答16:


getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);

Use above code in onResume() to open soft Keyboard




回答17:


Similar to the answer of @ShimonDoodkin this is what I did in a fragment.

https://stackoverflow.com/a/29229865/2413303

    passwordInput.postDelayed(new ShowKeyboard(), 300); //250 sometimes doesn't run if returning from LockScreen

Where ShowKeyboard is

private class ShowKeyboard implements Runnable {
    @Override
    public void run() {
        passwordInput.setFocusableInTouchMode(true);
        passwordInput.requestFocus();            
        getActivity().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
        ((InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE)).showSoftInput(passwordInput, 0);
    }
}

After a successful input, I also make sure I hide the keyboard

getActivity().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN);
((InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE))
                    .hideSoftInputFromWindow(getView().getWindowToken(), 0);



回答18:


This works:

private static void showKeyboard(Activity activity) {
    View view = activity.getCurrentFocus();
    InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
    imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
}

And you call this method like this:

showKeyboard(NameOfActivity.this);



回答19:


There are already too many answers but nothing worked for me apart from this 

inputMethodManager.showSoftInput(emailET,InputMethodManager.SHOW_FORCED);

I used showSoftInput with SHOW_FORCED

And my activity has 

 android:windowSoftInputMode="stateVisible|adjustResize"

hope this helps someone




回答20:


Post this method in your base activity and use it other activities like a charm

public void openKeyboard() {
    InputMethodManager imm =
            (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
    if (imm != null) {
        imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
    }
}



回答21:


public final class AAUtilKeyboard {

public static void openKeyboard(final Activity activity, final EditText editText) {
    final InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
    if (imm != null) {
        imm.showSoftInput(editText, InputMethodManager.SHOW_IMPLICIT);
    }
}

public static void hideKeyboard(final Activity activity) {
    final View view = activity.getCurrentFocus();
    if (view != null) {
        final InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
        if (imm != null) {
            imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
        }
    }
}


来源：https://stackoverflow.com/questions/5593053/open-soft-keyboard-programmatically

标签
android
android-softkeyboard
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