Can i have an example of displaying a toast using runOnUiThread.

问题

I searched many places but could not find a complete working example of implementation of "runOnUiThread". I tried a lot , but getting lots of errors . I just want to display a toast from a thread.

回答1:

So here is the final full code. Thanks to all who have replied.

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;

public class MainActivity extends Activity {


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

    MainActivity.this.runOnUiThread(new Runnable() {

        public void run() {
            Toast.makeText(MainActivity.this, "This is Toast!!!", Toast.LENGTH_SHORT).show();

        }
    });
}

}

And About the XML, its is the default XML file created. No change needed.

回答2:

YourActivityName.this.runOnUiThread(new Runnable() {

            @Override
            public void run() {
                Toast.makeText(YourActivityName.this, "This is Toast!!!", Toast.LENGTH_SHORT).show();

            }
        });

回答3:

To answer Nefariis question, I had the same problem, and needed to toast from a non-activity class, to solve it you can pass Context to the function your calling runOnUiThread from.

For example:

public class FlashCardsUtil
{
    public static void fillTableFromFile(SQLiteDatabase pSqLiteDatabase, final Context pContext, String pFileName)
    {
        ...

        runOnUiThread(new Runnable()
        {
            public void run()
            {
                Toast.makeText(pContext, "Success filling database", Toast.LENGTH_SHORT).show();
            }
        });
    }
}

来源：https://stackoverflow.com/questions/11791157/can-i-have-an-example-of-displaying-a-toast-using-runonuithread

标签

android

multithreading

toast