我想查看密码,我在Android中有一个密码字段
package com.example.berk4;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Intent;
public class MainActivity extends Activity implements OnClickListener{
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
EditText et = (EditText)findViewById(R.id.editText1);
Button buttonEnter = (Button)findViewById(R.id.button1);
buttonEnter.setOnClickListener(this);
}
@Override
public void onClick(View v) {
EditText et = (EditText)findViewById(R.id.editText1);
String password = et.getText().toString();
et.getEditableText().toString();
if (password.equals("admin")) {
Intent intent2 = new Intent("com.example.berk4.screen2");
startActivity(intent2);
}else{
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("you suck");
builder.setMessage("try again");
builder.setPositiveButton("ok", null);
AlertDialog dialog = builder.show();
}
}
}
当我写一个随机错误的密码时它工作正常但是当我写了正确的密码时,应用程序关闭,为什么它对我不起作用? (顺便说一句。我有另一个课程的屏幕2。)
答案 0 :(得分:4)
启动新活动,就像密码正确一样:
if (password.equals("admin")) {
Intent intent2 = new Intent(MainActivity.this,screen2.class);
startActivity(intent2);
}else{
// your code here
}
并确保您已将AndroidManifest.xml
中的下一个活动添加为:
.....
<activity android:name=".screen2"></activity>
</application>
.....