安卓开发简易电话拨号器，具体内容如下

我是基于安卓4.2.2开发的，下面是我写的MainActivity.java代码：

package com.example.phone;

import android.support.v7.app.ActionBarActivity;

import android.support.v4.app.Fragment;

import android.content.Intent;

import android.net.Uri;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.ViewGroup;

import android.widget.Button;

import android.widget.EditText;

public class MainActivity extends ActionBarActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

if (savedInstanceState == null) {

getSupportFragmentManager().beginTransaction()

.add(R.id.container, new PlaceholderFragment()).commit();

}

}

@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;

}

@Override

public boolean onOptionsItemSelected(MenuItem item) {

// Handle action bar item clicks here. The action bar will

// automatically handle clicks on the Home/Up button, so long

// as you specify a parent activity in AndroidManifest.xml.

int id = item.getItemId();

if (id == R.id.action_settings) {

return true;

}

return super.onOptionsItemSelected(item);

}

/**

* A placeholder fragment containing a simple view.

*/

public static class PlaceholderFragment extends Fragment {

public PlaceholderFragment() {

}

@Override

public View onCreateView(LayoutInflater inflater, ViewGroup container,

Bundle savedInstanceState) {

View rootView = inflater.inflate(R.layout.fragment_main, container, false);

final EditText numberText=(EditText) rootView.findViewById(R.id.number);

Button button=(Button)rootView.findViewById(R.id.button);

button.setOnClickListener(new OnClickListener()

{

@Override

public void onClick(View v) {

String number=numberText.getText().toString();

Intent intent = new Intent(Intent.ACTION_CALL,Uri.parse("tel:"+number));

startActivity(intent);

// TODO Auto-generated method stub

}

});

return rootView;

}

}

}

布局文件我就不贴出来了，需要注意的是项目清单文件(AndroidManifest.xml )中需要加入perimission: .我是安卓初学者，希望对和我一样的初学者有所帮助。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。