Question

＆＃13;

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="@string/v1"
        android:id="@+id/textView"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="@string/v2"
        android:id="@+id/textView2"
        android:layout_below="@+id/textView"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_marginTop="68dp" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="@string/v3"
        android:id="@+id/textView3"
        android:layout_centerVertical="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/v4"
        android:id="@+id/button"
        android:layout_alignTop="@+id/textView"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/v4"
        android:id="@+id/button2"
        android:layout_alignTop="@+id/textView2"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/v4"
        android:id="@+id/button3"
        android:layout_alignBottom="@+id/textView3"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true" />
</RelativeLayout>

＆＃13;

<resources>
    <string name="app_name">Help</string>

    <string name="hello_world">Hello world!</string>
    <string name="action_settings">Settings</string>
    <string name="v1">01734208484</string>
    <string name="v2">01734208479</string>
    <string name="v3">01828601248</string>
    <string name="v4">call</string>
</resources>

＆＃13;

！[

＆＃13;

package com.example.tushar.help;

import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;


public class MainActivity extends Activity {
    Button call;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        call = (Button) findViewById(R.id.button);
        call.setOnClickListener(new View.OnClickListener() {

            public void onClick(View view) {
              makecall();
            }
        });
    }
    protected void makecall() {
        Log.i("Make call", "");

        Intent phoneIntent = new Intent(Intent.ACTION_CALL);
        phoneIntent.setData(Uri.parse("tel:01734208484"));

        try {
            startActivity(phoneIntent);
            finish();
            Log.i("Finished making a call...", "");
        } catch (android.content.ActivityNotFoundException ex) {
            Toast.makeText(MainActivity.this,
                    "Call faild, please try again later.", Toast.LENGTH_SHORT).show();
        }
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

}

＆＃13;

] 1我正在尝试创建一个预加载联系人列表的应用程序。我添加了多个呼叫按钮，但我无法使用此按钮拨打电话。之前我学会了使用此代码拨打电话 http://www.tutorialspoint.com/android/android_phone_calls.htm 但是当涉及到另一个调用按钮时，我无法执行java代码。

Android活动中的多个电话呼叫按钮

0 个答案: