Image button changes image

问题

I have a image button and i want that image button when pressed it changes the text in a textbox and it changes a image to a different image how do i do this?

回答1:

You need an OnClickListener: http://developer.android.com/reference/android/view/View.OnClickListener.html

When clicked your text can be changed with (something like) text.setText("new text");

I'll find a link in a minute which will help more.

回答2:

This page shows you how to change the image onclick:

Make an Android button change background on click through XML

回答3:

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageButton;
import android.widget.TextView;

public class TestesetetActivity extends Activity {
    /** Called when the activity is first created. */
    TextView textview = null;
    ImageButton buttonResume = null;

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

        buttonResume = (ImageButton) findViewById(R.id.imageButton1);
        textview = (TextView) findViewById(R.id.textView1);

        buttonResume.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                textview.setText("test");
                buttonResume.setImageResource(R.drawable.push_pin);
            }
        });
    }
}

回答4:

In the xml file, you can give the image an onClick attribute, which calls a method in the java class, which calls the xml resource, and passes it the id of the ImageView.

In that java method, you can use

((ImageView) view).setImageResource(int id)

setImageDrawable(Drawable d)

to change the image.

Likewise, you can identify the TextView you wish to change using, for example,

TextView tv = (TextView) findViewById( id )

with id being the id of the TextView you wish to find.

You can then use

tv.setText(String s)

to set the text in this view.

回答5:

In your OnClickListener, you could use

button.setBackgroundResource(YOUR_BUTTON_ID);

button.setImageResource(YOUR_BUTTON_ID);

来源：https://stackoverflow.com/questions/6779249/image-button-changes-image

标签

android

imageview