android 打电话

首先需要添加权限

<uses-permission android:name="android.permission.CALL_PHONE" />

具体实现

 bt = (Button) findViewById(R.id.button1);
  et = (EditText) findViewById(R.id.editText1);
  bt.setOnClickListener(new OnClickListener() {

   @Override
   public void onClick(View arg0) {
    Intent intent = new Intent("android.intent.action.CALL", Uri
      .parse("tel:" + et.getText().toString()));
    startActivity(intent);
   }
  });