Android学习笔记之自定义Toast

<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" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context=".MainActivity" > <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:layout_marginLeft="104dp" android:layout_marginTop="70dp" android:text="普通的Toast" /> <Button android:id="@+id/button2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignRight="@+id/button1" android:layout_below="@+id/button1" android:layout_marginTop="50dp" android:text="自定义的Toast" /> </RelativeLayout>

<?xml version="1.0" encoding="utf⑻"?> <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:background="#DAA" android:orientation="horizontal" android:padding="8dp" > <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginRight="8dp" android:src="@drawable/in" /> <TextView android:id="@+id/text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginRight="8dp" /> </LinearLayout>

package com.lc.toastdialog; import android.app.Activity; import android.os.Bundle; import android.view.Gravity; import android.view.LayoutInflater; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends Activity { private Button button1; private Button button2; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); button1 = (Button) this.findViewById(R.id.button1); button2 = (Button) this.findViewById(R.id.button2); /* * 普通的Toast */ button1.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Toast.makeText(MainActivity.this, "普通的Toast", Toast.LENGTH_SHORT).show(); } }); /* * 自定义的Toast */ button2.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // 找到toast这个layout View layout = LayoutInflater.from(MainActivity.this).inflate( R.layout.toast, null); // 对toast文件中的textView设置值 TextView textView = (TextView) layout.findViewById(R.id.text); textView.setText("hello world!"); Toast toast = new Toast(MainActivity.this); toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0); toast.setDuration(Toast.LENGTH_SHORT); toast.setView(layout); toast.show(); } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu); return true; } }