`

设置Toast显示字体大小颜色

 
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					LayoutInflater inflater = LayoutInflater
							.from(getApplicationContext());
					View view = inflater.inflate(R.layout.my_toast,
							(ViewGroup) findViewById(R.id.toast_layout_root));
					TextView textView = (TextView) view.findViewById(R.id.text);

					SpannableString ss = new SpannableString("扫描成功");

					ss.setSpan(new ForegroundColorSpan(Color.RED), 0, 4,
							Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
					textView.setText(ss);

					toast.setDuration(Toast.LENGTH_LONG);
					toast.setView(view);
					toast.setGravity(Gravity.CENTER, 0, 0);
					toast.show();
 mytoast.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/toast_layout_root"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="horizontal"
    android:padding="10dp" >

    <TextView
        android:layout_marginTop="800dip"
        android:textSize="25dip"
        android:id="@+id/text"
        android:layout_width="wrap_content"
        android:layout_height="fill_parent"
        android:layout_marginLeft="50dip"
        
        android:textColor="@color/black" />

</LinearLayout>
 
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