Android 我可以举一个使用 runOnUiThread 显示吐司的例子吗？
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Can i have an example of displaying a toast using runOnUiThread.
提问by Sourav301
I searched many places but could not find a complete working example of implementation of "runOnUiThread". I tried a lot , but getting lots of errors . I just want to display a toast from a thread.
我搜索了很多地方，但找不到“runOnUiThread”实现的完整工作示例。我尝试了很多，但得到了很多错误。我只想显示一个线程的祝酒词。
回答by Sourav301
So here is the final full code. Thanks to all who have replied.
所以这是最终的完整代码。感谢所有回复的人。
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
MainActivity.this.runOnUiThread(new Runnable() {
public void run() {
Toast.makeText(MainActivity.this, "This is Toast!!!", Toast.LENGTH_SHORT).show();
}
});
}
}
And About the XML, its is the default XML file created. No change needed.
关于 XML，它是创建的默认 XML 文件。不需要改变。
回答by Samir Mangroliya
YourActivityName.this.runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(YourActivityName.this, "This is Toast!!!", Toast.LENGTH_SHORT).show();
}
});
回答by deepGrave
To answer Nefariisquestion, I had the same problem, and needed to toast from a non-activity class, to solve it you can pass Context to the function your calling runOnUiThreadfrom.
为了回答Nefariis 的问题，我遇到了同样的问题，需要从非活动类中敬酒，要解决它，您可以将 Context 传递给您runOnUiThread从中调用的函数。
For example:
例如：
public class FlashCardsUtil
{
public static void fillTableFromFile(SQLiteDatabase pSqLiteDatabase, final Context pContext, String pFileName)
{
...
runOnUiThread(new Runnable()
{
public void run()
{
Toast.makeText(pContext, "Success filling database", Toast.LENGTH_SHORT).show();
}
});
}
}
