小弟我的android 第三天 - 自定义Toast_Android

我的android 第三天 - 自定义Toast

今天学自定义Toast。好吧，原谅我周末偷懒了！先弄2个Button。

[plain]?view plaincopy?
<RelativeLayout?xmlns:android="http://schemas.android.com/apk/res/android"??
????xmlns:tools="http://schemas.android.com/tools"??
????android:layout_width="match_parent"??
????android:layout_height="match_parent"?>??
??
????<Button??
????????android:id="@+id/toast_btn"??
????????android:layout_width="wrap_content"??
????????android:layout_height="wrap_content"??
????????android:layout_alignParentTop="true"??
????????android:layout_centerHorizontal="true"??
????????android:layout_marginTop="17dp"??
????????android:text="吐司"??
????????android:textSize="30sp"?/>??
??
????<Button??
????????android:id="@+id/notice_btn"??
????????android:layout_width="wrap_content"??
????????android:layout_height="wrap_content"??
????????android:layout_alignLeft="@+id/toast_btn"??
????????android:layout_below="@+id/toast_btn"??
????????android:layout_marginTop="46dp"??
????????android:text="通知"?/>??
??
</RelativeLayout>??

在activity里面找到这2个Button ，添加监听

[java]?view plaincopy?
toastBtn=(Button)?findViewById(R.id.toast_btn);??
noticeBtn=(Button)?findViewById(R.id.notice_btn);??
//给按钮添加监听??
toastBtn.setOnClickListener(this);??
noticeBtn.setOnClickListener(this);??

判断单击了哪个View

[java]?view plaincopy?
public?void?onClick(View?v)?{??
????????//判断单击了哪个View??
????????switch?(v.getId())?{??
????????case?R.id.toast_btn:??
????????????//显示Toast??
????????????toast(v);?????
????????????break;??
????????case?R.id.notice_btn:??
????????????notice(v);??
????????}?????
????}??

[java]?view plaincopy?
private?void?notice(View?v)?{??
????????NotificationManager?mgr=(NotificationManager)?getSystemService(Context.NOTIFICATION_SERVICE);??
????????Notification?notification=new?Notification(R.drawable.sym_call_missed,???
????????????????"你有一个未接电话",?System.currentTimeMillis());??
????????//意图??
????????Intent?intent=new?Intent(context,DetailActivity.class);??
????????//条件触发意图，转移activity??
????????PendingIntent?pi=PendingIntent.getActivity(context,?0,?intent,?0);??
????????notification.setLatestEventInfo(context,?"未接电话",?"查看来源",?pi);??
????????//默认提示的声音??
????????notification.defaults=Notification.DEFAULT_SOUND;??
????????//发出通知??
????????mgr.notify(1,?notification);??
??
??????????
????}??

[java]?view plaincopy?
private?void?toast(View?v)?{??
????????Toast?toast=new?Toast(context);??
????????//设置view（就是Toast显示的界面）??
????????//构建一个线性布局??
????????LinearLayout?layout=new?LinearLayout(context);??
????????layout.setBackgroundResource(R.drawable.bg_yellow);??
????????layout.setGravity(Gravity.CENTER);??
????????//设置此布局为水平线性布局??
????????layout.setOrientation(LinearLayout.HORIZONTAL);??
????????//构建一个图片??
????????ImageView?image=new?ImageView(context);??
????????image.setBackgroundResource(R.drawable.ic_toast);??
????????//添加图片到布局??
????????layout.addView(image);??
????????//构建一个文本资源??
????????TextView?text=new?TextView(context);??
????????text.setText("冰激凌");??
????????layout.addView(text);??
????????toast.setView(layout);??
????????//设置子控件的位置??
????????toast.setGravity(Gravity.CENTER,?0,?0);//偏移量??
????????//设置Toast的显示时间??
????????toast.setDuration(Toast.LENGTH_LONG);??
????????//显示吐司??
????????toast.show();?????
????}??

好吧，就这样吧。。