如何在Toast之上顯示圖像

本練習通過創建一個新的佈局, 把文本及圖像加入, 並使用Toast.setView()把佈局加進Toast中, 從而做到在Toast之上顯示圖像.



main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  >
<TextView
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="@string/hello"
  />
<Button
  android:id="@+id/buttonshowtoast"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="Show Toast"
  />
</LinearLayout>

AndroidImageToast.java

package com.AndroidImageToast;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

public class AndroidImageToast extends Activity {
  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);
    
      Button buttonShowToast = (Button)findViewById(R.id.buttonshowtoast);
      buttonShowToast.setOnClickListener(new Button.OnClickListener(){

  @Override
  public void onClick(View arg0) {
   // TODO Auto-generated method stub
  
   Toast myToast = new Toast(AndroidImageToast.this);
   LinearLayout toastLayout = new LinearLayout(AndroidImageToast.this);
   toastLayout.setOrientation(LinearLayout.HORIZONTAL);
   ImageView toastImage = new ImageView(AndroidImageToast.this);
   TextView toastText = new TextView(AndroidImageToast.this);
   toastImage.setImageResource(R.drawable.icon);
   toastText.setText("It's a Toast with image and text!");
   toastLayout.addView(toastImage);
   toastLayout.addView(toastText);
   myToast.setView(toastLayout);
   myToast.setDuration(Toast.LENGTH_LONG);
   myToast.show();
  
  
  }});
    
  }
}