Android 实现电话拨打，照相，地图显示，信息发送

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Android实现打电话，照相，地图显示

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注：本人只是一个关于编程的菜鸟，希望大家在看了我的文章后多多指点呦。

1. 在AndroidMainfest.xml中添加权限
   
2. 在layout.xml中添加如下代码
   

*注意：这里只是部分的截图，不要照着盲目敲，年轻人还是要多多学习！

3. OK，不要开心，这里你只完成了不到一半，下面来跟着我继续进行

package com.example.ditu;

import android.Manifest;
import android.content.ClipData;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.annotation.NonNull;
import android.support.v4.content.ContextCompat;
import android.support.v4.content.FileProvider;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.Toast;

import java.io.File;
import java.util.List;

public class MainActivity extends AppCompatActivity {
ImageButton imageButton;
ImageButton imageButton1;
ImageView imageView;
ImageButton imageButton2;

private  static int REQUEST_CAMERA=3;
  @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        imageButton1=findViewById(R.id.phone1);
        imageButton2=findViewById(R.id.c);
        imageButton=findViewById(R.id.phone);
        imageView=findViewById(R.id.b);


        imageButton2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Uri uri=Uri.parse("http://www.google.cn/maps/@29.491271,160.570215,17z");
                Intent intent=new Intent();
                intent.setAction(Intent.ACTION_VIEW);
                intent.setData(uri);
                startActivity(intent);
            }
        });
        imageButton1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if (view.getId()==R.id.phone1){
                    Intent intent1=new Intent();
                    intent1.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
                    startActivityForResult(intent1,REQUEST_CAMERA);
                }
            }
        });

        imageButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent=new Intent();
                intent.setClass(MainActivity.this,PhoneActivity.class);
                startActivity(intent);
            }
        });
    }
    protected void onActivityResult(int requestCode,int resultCode,Intent data)
    {
        if (data==null) return;
        Bundle bundle=data.getExtras();
        Bitmap b=(Bitmap) bundle.get("data");
        imageView.setImageBitmap(b);
    }
}

在Java文件夹中创建一个名为People的Java Class

package com.example.ditu;

import java.io.Serializable;

public class People implements Serializable{
    private String name;
    private  String number;

    public void setName(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public void setNumber(String number) {
        this.number = number;
    }

    public String getNumber() {
        return number;
    }
}

在MainActivity中输入如下代码

package com.example.ditu;

import android.Manifest;
import android.content.ClipData;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.annotation.NonNull;
import android.support.v4.content.ContextCompat;
import android.support.v4.content.FileProvider;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.Toast;

import java.io.File;
import java.util.List;

public class MainActivity extends AppCompatActivity {
ImageButton imageButton;
ImageButton imageButton1;
ImageView imageView;
ImageButton imageButton2;

private  static int REQUEST_CAMERA=3;
  @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        imageButton1=findViewById(R.id.phone1);
        imageButton2=findViewById(R.id.c);
        imageButton=findViewById(R.id.phone);
        imageView=findViewById(R.id.b);


        imageButton2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Uri uri=Uri.parse("http://www.google.cn/maps/@29.491271,160.570215,17z");
                Intent intent=new Intent();
                intent.setAction(Intent.ACTION_VIEW);
                intent.setData(uri);
                startActivity(intent);
            }
        });
        imageButton1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if (view.getId()==R.id.phone1){
                    Intent intent1=new Intent();
                    intent1.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
                    startActivityForResult(intent1,REQUEST_CAMERA);
                }
            }
        });

        imageButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent=new Intent();
                intent.setClass(MainActivity.this,PhoneActivity.class);
                startActivity(intent);
            }
        });
    }
    protected void onActivityResult(int requestCode,int resultCode,Intent data)
    {
        if (data==null) return;
        Bundle bundle=data.getExtras();
        Bitmap b=(Bitmap) bundle.get("data");
        imageView.setImageBitmap(b);
    }
}

运行效果展示