Toast使用注意--解决错误：The application ** has stopped unexpectedly.Please try again

运行应用的时候出现了The application ** has stopped unexpectedly.Please ?try again 的错误，如下图：

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通过debug发现异常信息为：

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Caused by: java.lang.RuntimeException: This Toast was not created with Toast.makeText()

?? ?at android.widget.Toast.setText(Toast.java:275)

?? ?at cn.and.ToastActivity.onCreate(ToastActivity.java:20)

?? ?at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)

?? ?at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)

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分析andriod源码发现：

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/** * 显示Toast * @param toastTxt 提示文本内容 */private void showToast(String toastTxt) {Toast t = new Toast(this);t.setDuration(Toast.LENGTH_SHORT);LinearLayout layout = new LinearLayout(this);TextView textView = new TextView(this);textView.setText(toastTxt);//textView.setTextSize(16);layout.addView(textView);t.setView(layout);t.show();}

1 楼 helwens 2012-05-25 好文章！真想转载