Android入门--Toast五种情形

来源：互联网发布：土耳其人知乎编辑：程序博客网时间：2024/05/01 14:30

Toast用于向用户显示一些帮助/提示。下面我做了5中效果，来说明Toast的强大，定义一个属于你自己的Toast。

1.默认效果代码：

Toast.makeText(getApplicationContext(), "默认Toast样式",     Toast.LENGTH_SHORT).show();

2.自定义显示位置效果代码：

Toast toast = Toast.makeText(getApplicationContext(),     "自定义位置Toast", Toast.LENGTH_LONG);   toast.setGravity(Gravity.CENTER, 0, 0);   toast.show();}

3.带图片效果代码：

Toast toast = Toast.makeText(getApplicationContext(),     "带图片的Toast", Toast.LENGTH_LONG);   toast.setGravity(Gravity.CENTER, 0, 0);   LinearLayout toastView = (LinearLayout) toast.getView();   ImageView imageCodeProject = new ImageView(getApplicationContext());   imageCodeProject.setImageResource(R.drawable.ic_launcher);   toastView.addView(imageCodeProject, 0);   toast.show();

4.完全自定义效果

Forward代码：

package com.hanji.forward;import android.support.v7.app.ActionBarActivity;import android.os.Bundle;import android.os.Handler;import android.view.Gravity;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.ImageView;import android.widget.TextView;import android.widget.Toast;public class Forward extends ActionBarActivity {Handler handler = new Handler();@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);LayoutInflater inflater = getLayoutInflater();   View layout = inflater.inflate(R.layout.custom,     (ViewGroup) findViewById(R.id.llToast));   ImageView image = (ImageView) layout     .findViewById(R.id.tvImageToast);   image.setImageResource(R.drawable.ic_launcher);   TextView title = (TextView) layout.findViewById(R.id.tvTitleToast);   title.setText("Attention");   TextView text = (TextView) layout.findViewById(R.id.tvTextToast);   text.setText("完全自定义Toast");   Toast toast = new Toast(getApplicationContext());   toast.setGravity(Gravity.RIGHT | Gravity.TOP, 12, 40);   toast.setDuration(Toast.LENGTH_LONG);   toast.setView(layout);   toast.show();}}

layout中custom.xml代码如下：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/llToast"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:background="#ffffffff"    android:orientation="vertical" >    <TextView        android:id="@+id/tvTitleToast"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:layout_margin="1dip"        android:background="#bb000000"        android:gravity="center"        android:textColor="#ffffffff" />    <LinearLayout        android:id="@+id/llToastContent"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_marginBottom="1dip"        android:layout_marginLeft="1dip"        android:layout_marginRight="1dip"        android:background="#44000000"        android:orientation="vertical"        android:padding="15dip" >        <ImageView            android:id="@+id/tvImageToast"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_gravity="center" />        <TextView            android:id="@+id/tvTextToast"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:gravity="center"            android:paddingLeft="10dip"            android:paddingRight="10dip"            android:textColor="#ff000000" />    </LinearLayout></LinearLayout>

5.其他线程代码：

new Thread(new Runnable() {    public void run() {     showToast();    }   }).start();

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