android 自定义Toast & 如何使Toast随Activity消失而消失

自定义toast(包括带图片的toast以及 自定义底色和边框的Toast)

自定义位置的toast

在Activity中创建一个toast对象,然后:
	toast = Toast.makeText(getApplicationContext(), "自定义位置Toast",Toast.LENGTH_LONG);
	toast.setGravity(Gravity.CENTER, 0, 0);
	toast.show();

带图片和文字的toast

代码如下:
toast = Toast.makeText(getApplicationContext(), "带图片的Toast",Toast.LENGTH_LONG);
	toast.setGravity(Gravity.CENTER, 0, 0);

	LinearLayout toastView = (LinearLayout) toast.getView();
	ImageView image = new ImageView(getApplicationContext());
	image.setImageResource(R.drawable.ic_launcher);
	toastView.addView(image, 0);
	toast.show();


自定义边框以及底色的toast

btn_test_toast5.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				View toastRoot = getLayoutInflater().inflate(R.layout.my_toast,
						null);
                                // 圆角 灰色背景
				Toast toast = new Toast(getApplicationContext());
				toast.setView(toastRoot);
				toast.show();
			}
		});
在 my_toast布局文件中:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@drawable/my_border" >

    <TextView
        android:id="@+id/TextViewInfo"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:text="这是一个自定义背景颜色的提示框"
        android:textColor="#fff"/>
    
     <!-- android:textColor="#ff00ff00" -->

</LinearLayout>

在my_border.xml文件中:
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" >

    <!-- toast 显示窗体的背景色 -->
    <solid android:color="#4f5555" />

    <stroke
        android:width="1dp"
        android:color="#FFFFFFFF" />

    <padding
        android:bottom="7dp"
        android:left="7dp"
        android:right="7dp"
        android:top="7dp" />

    <!-- radius 越大,圆角矩形弯曲越明显 -->
    <corners android:radius="6dp" />

</shape>
下载地址:


如何使toast随Activity消失而消失?


findViewById(R.id.btn_toast).setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				// 只创建一个Toast对象
				if (toast != null) {
					count++;
					toast.setText(str + "count:" + count);
					toast.setDuration(Toast.LENGTH_LONG);
					toast.show();
				} else {
					count++;
					toast = Toast.makeText(MainActivity.this, str + "count:"
							+ count, duration);
					toast.show();
				}
			}
		});

@Override
	public boolean onKeyDown(int keyCode, KeyEvent event) {
		if (keyCode == KeyEvent.KEYCODE_BACK) {
			this.finish();
			if (toast != null) {
				toast.cancel();
			}
			
		}
		return super.onKeyDown(keyCode, event);
	}

// 只创建一个Toast对象,在合适的地方把Toast给cancel()就可以了。
2014-11-20 17:53:33




posted on 2014-01-09 11:29  jinfenglee  阅读(476)  评论(0编辑  收藏  举报

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