private Toast toast; public void showMsg(String arg) { if (toast == null ) { toast = Toast.makeText( this , arg, Toast.LENGTH_SHORT); } else { toast.cancel(); toast.setText(arg); } toast.show(); } |
res/drawable目录下面建立一个设置圆角边框参数的xml文件,如下:
corner_round.xml:
[[73539]]
调用:android:background="@drawable/corner_round"
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