java - 如何从 Android 应用程序调用电话

Question

我正在尝试制作一个带有按钮的应用程序来调用不同的电话号码。我有这个: 包 com.BigTooth.Apps.Recromax;

import android.app.*;
import android.os.*;
import android.view.*;
import android.widget.*;
import android.content.Intent;
import android.content.*;
import android.net.Uri;
import android.view.View.OnClickListener;


public class MainActivity extends Activity
{
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }
    private void phoneCall1()
    {
        String phoneCallUri = "tel:4078421430";
        Intent phoneCallIntent = new Intent(Intent.ACTION_CALL);
        phoneCallIntent.setData(Uri.parse(phoneCallUri));
        startActivity(phoneCallIntent);
    }
    // add button listener
    button.setOnClickListener(new OnClickListener() {
    private void phoneCall()
    {
        String phoneCallUri = "tel:8889807091";
        Intent phoneCallIntent = new Intent(Intent.ACTION_CALL);
        phoneCallIntent.setData(Uri.parse(phoneCallUri));
        startActivity(phoneCallIntent);}
    } 
}

在我的 MainActivity.java 文件中。它告诉我这是不正确的。请帮忙!!!

Answer 1

button.setOnClickListener 位置错误。另外，onClickListener 有点令人困惑。应该是:

import android.app.*;
import android.os.*;
import android.view.*;
import android.widget.*;
import android.content.Intent;
import android.content.*;
import android.net.Uri;
import android.view.View.OnClickListener;


public class MainActivity extends Activity
{
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Button button = (Button) findViewById(R.id.youButtonId);
        Button button1 = (Button) findViewById(R.id.youButtonId1);
        // add button listener
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View arg0) {
                phoneCall();
            }
        });
        button1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View arg0) {
                phoneCall1();
            }
        });
    }
    private void phoneCall()
    {
        String phoneCallUri = "tel:8889807091";
        Intent phoneCallIntent = new Intent(Intent.ACTION_CALL);
        phoneCallIntent.setData(Uri.parse(phoneCallUri));
        startActivity(phoneCallIntent);
    }
    private void phoneCall1()
    {
        String phoneCallUri = "tel:4078421430";
        Intent phoneCallIntent = new Intent(Intent.ACTION_CALL);
        phoneCallIntent.setData(Uri.parse(phoneCallUri));
        startActivity(phoneCallIntent);
    }
}