06_电话拔号器

public class MainActivity extends Activity {
    private EditText mobileText;
    private Button button;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        mobileText = (EditText) findViewById(R.id.mobile);
        button = (Button) this.findViewById(R.id.button);
        
        //方法一：
        button.setOnClickListener(new ButtonClikListener());
        /*方法二：————不建议
        button.setOnClickListener(new View.OnClickListener() {
            
            public void onClick(View v) {
                // TODO Auto-generated method stub
                String number = mobileText.getText().toString();
                
                Intent intent = new Intent();
                intent.setAction("android.intent.action.CALL");
                intent.addCategory("android.intent.category.DEFAULT");
                intent.setData(Uri.parse("tel:"+number));
                startActivity(intent);//    方法内部会自动为intent 添加类别"android.intent.category.DEFAULT",所以intent.addCategory可以不写                
            }
        }*/
    }
    
    private final class ButtonClikListener implements View.OnClickListener{
        public void onClick(View v){
            String number = mobileText.getText().toString();
            
            Intent intent = new Intent();
            intent.setAction("android.intent.action.CALL");
            intent.addCategory("android.intent.category.DEFAULT");
            intent.setData(Uri.parse("tel:"+number));
            startActivity(intent);//    方法内部会自动为intent 添加类别"android.intent.category.DEFAULT",所以intent.addCategory可以不写
        }
    }
}