我是一名新手Android开发者。我有两个不同的类(MainActivity.java和Upload.java)
我遇到了将Upload.java调用到Main.Activity中的问题。
当我点击按钮时,应用程序崩溃了。
我做错了什么吗?
MainActivity.java
Button upload = (Button)findViewById(R.id.upload_Btn);
upload.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
Update_Table dbClient = new Update_Table();
try {
dbClient.DynamoDBClient();
} catch (IOException e) {
// TODO Auto-generated catch block
Log.i("sys", "Success");
}
}
}
Upload.java
public class Update_Table
{
private String tableName = "Test";
private AmazonDynamoDBClient client =null;
public void DynamoDBClient() throws IOException
{
AWSCredentials cred = new PropertiesCredentials(Update_Table.class
.getResourceAsStream("AwsCredentials.properties"));
client = new AmazonDynamoDBClient(cred);
}
}