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Interface |
package com.example.helloworld; import android.app.Activity; import android.os.Bundle; import android.view.Menu; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; public class MainActivity extends Activity { private Button button, Reset; private EditText editText; private TextView Result; public String str; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); button = (Button)findViewById(R.id.button); Reset = (Button)findViewById(R.id.Reset); editText = (EditText)findViewById(R.id.editText); Result = (TextView)findViewById(R.id.Result); button.setOnClickListener(buttonOnClick); Reset.setOnClickListener(ResetOnClick); } private Button.OnClickListener buttonOnClick = new Button.OnClickListener(){ public void onClick(View v){ str = editText.getText().toString(); Result.setText(str); } }; private Button.OnClickListener ResetOnClick = new Button.OnClickListener(){ public void onClick(View v){ str=" "; Result.setText(str); } }; 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 true; } }