[android] Clear text in EditText when entered

I'm trying to set and onclicklistener so that when I click within the edittext element it will clear its current contents. Is there something wrong here? When I compile this code I get a force quit and ActivityManager: Can't dispatch DDM chunk 4d505251: no handler defined error.

public class Project extends Activity implements OnClickListener {
    /** Called when the activity is first created. */
    EditText editText = (EditText)findViewById(R.id.editText1);
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);


        editText.setOnClickListener(this);

        setContentView(R.layout.main);

    }

    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        editText.setText("");
    }
}

package com.example.sampleproject;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;

public class SampleProject extends Activity {
    EditText mSearchpeople;
    Button mCancel , msearchclose;
    ImageView mprofile, mContact, mcalender, mConnection, mGroup , mFollowup , msetting , mAddacard;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.dashboard);
        mSearchpeople = (EditText)findViewById(R.id.editText1);
        mCancel = (Button)findViewById(R.id.button2);
        msearchclose = (Button)findViewById(R.id.button1);
        mprofile = (ImageView)findViewById(R.id.imageView1);
        mContact = (ImageView)findViewById(R.id.imageView2);
        mcalender = (ImageView)findViewById(R.id.imageView3);
        mConnection = (ImageView)findViewById(R.id.imageView4);
        mGroup = (ImageView)findViewById(R.id.imageView5);
        mFollowup = (ImageView)findViewById(R.id.imageView6);
        msetting = (ImageView)findViewById(R.id.imageView7);
        mAddacard = (ImageView)findViewById(R.id.imageView8);
    }
    @Override
    protected void onResume() {
        // TODO Auto-generated method stub
        super.onResume();
        mCancel.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                mSearchpeople.clearFocus();

            }
        });
    }


}

Very Simple to clear editText values.when u click button then only follow 1 line code.

Inside button or anywhere u want.Only use this

editText.setText("");   

Your code should be:

    public class Project extends Activity implements OnClickListener {
            /** Called when the activity is first created. */
            EditText editText;
            @Override
            public void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);            

                setContentView(R.layout.main);
                editText = (EditText)findViewById(R.id.editText1);
                editText.setOnClickListener(this);            
            }

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub

                if(v == editText) {
                    editText.setText("");
                }
            }
        }

just use the android:hint attribute in your EditText. This text shows up when the box is empty and not focused, but disappears upon selecting the EditText box.

You can use the 'android:hint' attribute in your EditText also from code:

editText.setHint(CharSequence hint / int resid);

Then you don't need any onClickListener or similar. But consider that the hint value won't be passed. The editText will be stayed empty. In this case you can set your editText with your deflault value:

if(editText.getText().toString().equals("")) { 
...use your default value instead of the editText... }

I am not sure if your searching for this one

    {
    <EditText
     .
     . 
     android:hint="Please enter your name here">
    }

For Kotlin:

Create two extensions, one for EditText and one for TextView

EditText:

fun EditText.clear() { text.clear() }

TextView:

fun TextView.clear() { text = "" }

and use it like

myEditText.clear()

myTextView.clear()

//To clear When Clear Button is Clicked

firstName = (EditText) findViewById(R.id.firstName);

    clear = (Button) findViewById(R.id.clearsearchSubmit);

    clear.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            if (v.getId() == R.id.clearsearchSubmit);
            firstName.setText("");
        }
    });

This will help to clear the wrong keywords that you have typed in so instead of pressing backspace again and again you can simply click the button to clear everything.It Worked For me. Hope It Helps

If the use of EditText is not mandatory, you can implement this behavior easily with the new material components:

<com.google.android.material.textfield.TextInputLayout
            style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.Dense"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="@string/hint_field"
            app:endIconDrawable="@drawable/ic_close_black_24dp"
            app:endIconMode="clear_text"
            app:endIconTint="@color/black">

            <com.google.android.material.textfield.TextInputEditText
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:hint="@string/hint_value"
                android:maxLines="1"
                android:text="@{itemModel.value}" />

        </com.google.android.material.textfield.TextInputLayout>

You only have to specify the drawable you want for the button that will clear the text and the action that it will execute. To clear the text, you can use iconMode="clear_text", but also "password_toggle" is available.

by setting Empty string you can clear your edittext

    editext.setText("");

Also you can use code below

editText.getText().clear();

It's simple: declare the widget variables (editText, textView, button etc.) in class but initialize it in onCreate after setContentView.

The problem is when you try to access a widget of a layout first you have to declare the layout. Declaring the layout is setContentView. And when you initialize the widget variable via findViewById you are accessing the id of the widget in the main layout in the setContentView.

I hope you get it!

In XML you can write like:

    <EditText
        android:id="@+id/txtsearch"
        android:layout_width="250dp"
        android:layout_height="match_parent"
        android:layout_gravity="right"
        android:layout_weight="1"
        android:background="@drawable/roundlayoutbutton1"
        android:ems="10"
        android:gravity="center"
        android:inputType="text"
        android:textAllCaps="true"
        android:text="search_xxxx"

        android:textColor="@color/colorPrimaryDark"
        android:visibility="visible" />

and in java class you may have below one :

    EditText searchHost;

OnCreate() you write:

    searchHost=findViewById(R.id.txtsearch);

    searchHost.setOnFocusChangeListener(new View.OnFocusChangeListener() {
        @Override
        public void onFocusChange(View v, boolean hasFocus) {
            if(searchHost.getText().toString().equalsIgnoreCase("search_xxxx")){
                searchHost.setText("");
                Toast.makeText(getApplicationContext(),"Enter you text xxx...", Toast.LENGTH_LONG).show();
            }
        }
    });

It works fine for me.

final EditText childItem = (EditText) convertView.findViewById(R.id.child_item);
childItem.setHint(cellData);

childItem.setOnFocusChangeListener(new View.OnFocusChangeListener() {
    @Override
    public void onFocusChange(View v, boolean hasFocus) {
        //Log.d("NNN", "Has focus " + hasFocus);
        if (hasFocus) {
            Toast.makeText(ctx.getApplicationContext(), "got the focus", Toast.LENGTH_LONG).show();
        } else {
            Toast.makeText(ctx.getApplicationContext(),
            "loss the focus", Toast.LENGTH_SHORT).show();
        }
        return;
    });

i don't know what mistakes i did while implementing the above solutions, bt they were unsuccessful for me

txtDeck.setOnFocusChangeListener(new OnFocusChangeListener() {
    @Override       
    public void onFocusChange(View v, boolean hasFocus) {
        txtDeck.setText("");
    }
});

This works for me,

public EditText editField;
public Button clear = null;
@Override
public void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
    setContentView(R.layout.text_layout);
   this. editField = (EditText)findViewById(R.id.userName);
this.clear = (Button) findViewById(R.id.clear_button);  
this.editField.setOnClickListener(this);
this.clear.setOnClickListener(this);
@Override
public void onClick(View v) {

    // TODO Auto-generated method stub
if(v.getId()==R.id.clear_button){
//setText will remove all text that is written by someone
    editField.setText("");
    }
}

We can clear EditText data in two ways

First One setting EditText is empty like below line

editext.setText("");

Second one clearing EditText data like this

editText.getText().clear();

I suggest second way