Android开发之实现消息分享（四）

灰太狼 2024-03-25 17:58 11阅读 0赞

**功能：**

**一、通过点击按钮，获取输入框文本信息**

**二、实现信息分享**

**1、设计UI界面**

<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">
    
        <EditText
            android:id="@+id/et_input"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="请输入内容" />
    
        <Button
            android:id="@+id/btn_share"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="分享" />
    
    </LinearLayout>

效果图

![b2157cb67ad14d74bedaa08063d75499.png][]

**2、创建类**

package com.example.myapplication;
    
    import androidx.appcompat.app.AppCompatActivity;
    
    import android.content.Intent;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.Button;
    import android.widget.EditText;
    
    
    public class ShareSheetActivity extends AppCompatActivity {
    
        EditText etInput;
        Button btnShare;
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_share_sheet);
    
            //初始化UI界面
            etInput=findViewById(R.id.et_input);
            btnShare=findViewById(R.id.btn_share);
    
            //监听按钮的点击事件，获取文本框的输入
            btnShare.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    //获取输入内容
                    String content = etInput.getText().toString().trim();
    
                    //创建意图
                    Intent myIntent = new Intent();
    
                    //设置Action
                    myIntent.setAction(Intent.ACTION_SEND);
    
                    //将数据传给Intent(意图)
                    // myIntent.putExtra(键，值)
                    myIntent.putExtra(Intent.EXTRA_TEXT,content);
    
                    //设置内容的类型
                    //text/plain  表示内容为纯文本
                    myIntent.setType("text/plain");
    
                    //创建shareIntent
                    Intent shareIntent= Intent.createChooser(myIntent,"my share");
    
                    //启动ShareIntent
                    startActivity(shareIntent);
                }
            });
    
        }
    }

启动项目

![d117fcb09a2642a4b0d5c40972628c28.png][]

![75ef5da19f2845f38a16cd94ffd66162.png][]

![fede166370384bb7acf8e4d3ad0cbd26.png][]

[b2157cb67ad14d74bedaa08063d75499.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/25/7485ea0aa70140d2bd64c226d767af7b.png
[d117fcb09a2642a4b0d5c40972628c28.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/25/73002b6a9fd141f69d6f3a768ed4f03a.png
[75ef5da19f2845f38a16cd94ffd66162.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/25/46b4203ad40c4f9ba3447d71f778f93e.png
[fede166370384bb7acf8e4d3ad0cbd26.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/25/b264201356354653adc0a77a024d3ed8.png