小编Esh*_*aal的帖子

嘿,我是java和android的新手.尝试与海绵城堡一起锻炼,但有一些问题.我试着在后解决这个,但仍然得到运行时错误"应用程序已意外停止,请重试".

这是代码:

import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.Security;
import java.security.spec.ECGenParameterSpec;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.Button;

import org.spongycastle.jce.provider.BouncyCastleProvider;

public class MainActivity extends Activity {

static {
    //Security.addProvider(new BouncyCastleProvider());
    Security.insertProviderAt(new BouncyCastleProvider(), 1);
    }

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Button generator= (Button) findViewById(R.id.key_pair_generator);
    generator.setOnClickListener(ECkeyPairGenerator);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return …