android 添加button事件后 提示 view cannot be resolved to a type
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android 添加button事件后 提示 view cannot be resolved to a type
public void clickHandler(View source) { // 获取UI界面中ID为R.id.show的文本框 TextView tv = (TextView) findViewById(R.id.show); // 改变文本框的文本内容 tv.setText("Hello Android-" + new java.util.Date()); }
解决方法:在 activity的.java文件前面添加一行 import android.view.View;
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