Hiding keyboard after calling new Activity that shows a ProgressDialog

问题

I'm having trouble with the on screen keyboard. I have an activity with an EditText which shows the keyboard, and a button to go to a second activity. The second activity shows a ProgressDialog on its onCreate(), does stuff, and dismisses the ProgressDialog. The problem is that while the ProgressDialog is displayed, so is the keyboard.

I would like the keyboard to disappear before creating the ProgressDialog. I searched thorougly both StackOverflow and other sites, but nothing seems to work with this particular scenario.

I'm attaching two pics for your reference:

This is the code of the first activity:

public class FirstActivity extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        findViewById(R.id.button1).setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View arg0) {
                Intent intent = new Intent(FirstActivity.this, SecondActivity.class);
                startActivity(intent);
            }
        });
    }
}

and this is the code of the second activity:

public class SecondActivity extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.second);

        // TODO: hide keyboard here

        final ProgressDialog dialog = ProgressDialog.show(this, "", "Please wait...", true, false, null);

        // in real code, here there is an AsyncTask doing stuff...
        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                dialog.dismiss();
            }
        }, 5000);
    }
}

Thanks

回答1:

Solved using a variation of the technique posted by phalt:

InputMethodManager im = (InputMethodManager) this.getApplicationContext().getSystemService(Context.INPUT_METHOD_SERVICE);
im.hideSoftInputFromWindow(getWindow().getDecorView().getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);

This code works correctly during onCreate/onStart/onResume, since doesn't rely on a focused view to get the window token from.

回答2:

Write this code in manifest.xml file for 'SecondActivity' Activity.

<activity name="EditContactActivity"
    android:windowSoftInputMode="stateAlwaysHidden">
    ...
</activity>

回答3:

you can use like this also:

InputMethodManager imm;

Write below line in onCreate() Method:

imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);

And this line is in onclick of button:

imm.hideSoftInputFromWindow(arg0.getWindowToken(), 0);

Example:

public class FirstActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    findViewById(R.id.button1).setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View arg0) {

            imm.hideSoftInputFromWindow(arg0.getWindowToken(), 0);
            Intent intent = new Intent(FirstActivity.this, SecondActivity.class);
            startActivity(intent);
        }
    });
}
}

回答4:

If In Fragment Class

@Override
    public void onResume()
    {
        getActivity().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
        super.onResume();
        }

If In Activity Class

 @Override
    public void onResume()
    {
        this.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
        super.onResume();
        FetchLocation fl = new FetchLocation(mContext, locationResult);
    }

回答5:

Have you tried:

InputMethodManager im = (InputMethodManager)
this.getApplicationContext().getSystemService(Context.INPUT_METHOD_SERVICE);

im.hideSoftInputFromWindow(this.getCurrentFocus().getWindowToken(),
InputManagerMethod.HIDE_NOT_ALWAYS);

This is the code I throw in at points I want to hide the keyboard.

来源：https://stackoverflow.com/questions/10429125/hiding-keyboard-after-calling-new-activity-that-shows-a-progressdialog