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控件（2）toast

Android中的Toast是一种简易的消息提示框，toast提示框不能被用户点击，toast会根据用户设置的显示时间后自动消失。

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转：http://www.cnblogs.com/salam/archive/2010/11/10/1873654.html   (涵×××)

toast  五种效果

1.默认效果

控件（2）toast

代码

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

2.自定义显示位置效果

控件（2）toast

代码

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

控件（2）toast

代码

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

4.完全自定义效果

控件（2）toast

代码

LayoutInflater inflater = getLayoutInflater();
View layout = inflater.inflate(R.layout.custom,
(ViewGroup) findViewById(R.id.llToast));
ImageView p_w_picpath = (ImageView) layout
.findViewById(R.id.tvImageToast);
p_w_picpath.setImageResource(R.drawable.icon);
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 = new Toast(getApplicationContext());
toast.setGravity(Gravity.RIGHT | Gravity.TOP, 12, 40);
toast.setDuration(Toast.LENGTH_LONG);
toast.setView(layout);
toast.show();

5.其他线程

控件（2）toast

代码

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

完整代码

1.Main,java

package com.wjq.toast;

import android.app.Activity;
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.view.View.OnClickListener;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

public class Main extends Activity implements OnClickListener {
Handler handler = new Handler();

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

findViewById(R.id.btnSimpleToast).setOnClickListener(this);
findViewById(R.id.btnSimpleToastWithCustomPosition).setOnClickListener(
this);
findViewById(R.id.btnSimpleToastWithImage).setOnClickListener(this);
findViewById(R.id.btnCustomToast).setOnClickListener(this);
findViewById(R.id.btnRunToastFromOtherThread).setOnClickListener(this);

}

public void showToast() {
handler.post(new Runnable() {

@Override
public void run() {
Toast.makeText(getApplicationContext(), "我来自其他线程！",
Toast.LENGTH_SHORT).show();

}
});
}

@Override
public void onClick(View v) {
Toast toast = null;
switch (v.getId()) {
case R.id.btnSimpleToast:
Toast.makeText(getApplicationContext(), "默认Toast样式",
Toast.LENGTH_SHORT).show();
break;
case R.id.btnSimpleToastWithCustomPosition:
toast = Toast.makeText(getApplicationContext(),
"自定义位置Toast", Toast.LENGTH_LONG);
toast.setGravity(Gravity.CENTER, 0, 0);
toast.show();
break;
case R.id.btnSimpleToastWithImage:
toast = Toast.makeText(getApplicationContext(),
"带图片的Toast", Toast.LENGTH_LONG);
toast.setGravity(Gravity.CENTER, 0, 0);
LinearLayout toastView = (LinearLayout) toast.getView();
ImageView p_w_picpathCodeProject = new ImageView(getApplicationContext());
p_w_picpathCodeProject.setImageResource(R.drawable.icon);
toastView.addView(p_w_picpathCodeProject, 0);
toast.show();
break;
case R.id.btnCustomToast:
LayoutInflater inflater = getLayoutInflater();
View layout = inflater.inflate(R.layout.custom,
(ViewGroup) findViewById(R.id.llToast));
ImageView p_w_picpath = (ImageView) layout
.findViewById(R.id.tvImageToast);
p_w_picpath.setImageResource(R.drawable.icon);
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 = new Toast(getApplicationContext());
toast.setGravity(Gravity.RIGHT | Gravity.TOP, 12, 40);
toast.setDuration(Toast.LENGTH_LONG);
toast.setView(layout);
toast.show();
break;
case R.id.btnRunToastFromOtherThread:
new Thread(new Runnable() {
public void run() {
showToast();
}
}).start();
break;

}

}
}

2.main,xml


android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent" android:padding="5dip" android:gravity="center">




3.custom.xml


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


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