Android实例-拨打电话

（1）项目构造以下：

（2）MainActivity.java

package com.example.phonecall;

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends Activity {

	private Button button;
	private EditText editText;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		button = (Button) this.findViewById(R.id.button1);
		editText = (EditText) this.findViewById(R.id.editText1);
		button.setOnClickListener(new ButtonClickListener());
	}

	private final class ButtonClickListener implements View.OnClickListener {

		@Override
		public void onClick(View v) {
			String number = editText.getText().toString();

			Intent intent = new Intent();
			/*
			 * 拨号的话要在清单文件中添加拨号权限
			 */
			intent.setAction("android.intent.action.CALL");
			intent.addCategory("android.intent.category.DEFAULT");
			intent.setData(Uri.parse("tel:" + number));

			startActivity(intent);
		}

	}

	@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 true;
	}

}
package com.exam