Android 常用的 Intent 封装

本文链接: https://blog.csdn.net/xietansheng/article/details/115762956

1. 打开 Uri

import android.content.Context
import android.content.Intent
import android.net.Uri

fun openUri(context: Context, uri: Uri) {
    val intent = Intent()
    intent.action = Intent.ACTION_VIEW
    intent.data = uri
    context.startActivity(intent)   // 如果不支持的 Uri 将抛出异常
}

2. 打开 APP 在 设置 中的 应用信息

import android.content.Context
import android.content.Intent
import android.net.Uri
import android.provider.Settings

fun openAppDetails(context: Context, packageName: String) {
    val intent = Intent()
    intent.action = Settings.ACTION_APPLICATION_DETAILS_SETTINGS
    intent.data = Uri.parse("package:$packageName")
    intent.addCategory(Intent.CATEGORY_DEFAULT)
    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
    intent.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY)
    intent.addFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS)
    context.startActivity(intent)
}

3. 在 应用市场 中打开指定 APP

import android.content.Context
import android.content.Intent
import android.net.Uri

fun openAppMarket(context: Context, packageName: String) {
    val uri = "market://details?id=$packageName"
    val intent = Intent()
    intent.action = Intent.ACTION_VIEW
    intent.data = Uri.parse(uri)
    context.startActivity(intent)
}

4. 打开 APK 安装包

import android.content.Context
import android.content.Intent
import android.net.Uri
import android.os.Build
import androidx.core.content.FileProvider
import java.io.File

fun openInstallApk(context: Context, localApk: File) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
        val intent = Intent()
        intent.action = Intent.ACTION_INSTALL_PACKAGE
        // AndroidManifest.xml 中配置的 <provider/> 节点的 android:authorities 属性值
        val authority = "${context.packageName}.fileprovider"
        val apkUri = FileProvider.getUriForFile(context, authority, localApk)
        intent.setDataAndType(apkUri, "application/vnd.android.package-archive")
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK )
        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
        context.startActivity(intent)
    } else {
        val intent = Intent()
        intent.action = Intent.ACTION_INSTALL_PACKAGE
        val apkUri = Uri.fromFile(localApk)
        intent.setDataAndType(apkUri, "application/vnd.android.package-archive")
        intent.addCategory(Intent.CATEGORY_DEFAULT)
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
        context.startActivity(intent)
    }
}

5. 发送通用的 文本 和 图片 分享

import android.content.Context
import android.content.Intent
import androidx.core.content.FileProvider
import java.io.File

fun sendTextShare(context: Context, text: String) {
    val intent = Intent()
    intent.action = Intent.ACTION_SEND
    intent.putExtra(Intent.EXTRA_TEXT, text)
    intent.type = "text/plain"
    context.startActivity(Intent.createChooser(intent,"发送至"))
}

fun sendImageShare(context: Context, localImage: File) {
    val intent = Intent()
    intent.action = Intent.ACTION_SEND
    intent.type = "image/*"
    // AndroidManifest.xml 中配置的 <provider/> 节点的 android:authorities 属性值
    val authority = "${context.packageName}.fileprovider"
    val contentUri = FileProvider.getUriForFile(context, authority, localImage)
    intent.putExtra(Intent.EXTRA_STREAM, contentUri)
    context.startActivity(Intent.createChooser(intent, "发送至"))
}

6. 打开系统的 图片 或 文件 选择器

import android.app.Activity
import android.content.Intent

fun openSystemImageChooser(context: Activity, requestCode: Int){
    val intent = Intent(Intent.ACTION_PICK)
    intent.type = "image/*"
    context.startActivityForResult(intent, requestCode)
}

fun openSystemFilesChooser(context: Activity, requestCode: Int) {
    val intent = Intent(Intent.ACTION_GET_CONTENT)
    intent.type = "*/*"
    intent.addCategory(Intent.CATEGORY_OPENABLE)
    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true)   // 支持多选
    context.startActivityForResult(Intent.createChooser(intent, "选择文件"), requestCode)
}

-------------------------------------------------------------------------------------

import android.content.Intent
import androidx.appcompat.app.AppCompatActivity

class DemoActivity : AppCompatActivity() {
    /** 在 Activity 中重写 onActivityResult 获取选取的图片或文件 */
    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)
        if (requestCode == {打开选择器的ReqCode} && resultCode == RESULT_OK) {
            val uri = data?.data            // (单选)选取的图片或文件
            val clipData = data?.clipData   // (多选)选取的图片或文件
            ...
        }
    }
}

7. 打开系统相机拍照

import android.app.Activity
import android.content.Intent
import android.net.Uri
import android.os.Build
import android.provider.MediaStore
import androidx.core.content.FileProvider
import java.io.File

fun openSystemCamera(activity: Activity, requestCode: Int, outputFile: File) {
    val intent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
    val outputUri = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
        // AndroidManifest.xml 中配置的 <provider/> 节点的 android:authorities 属性值
        val authority = "${activity.packageName}.fileprovider"
        FileProvider.getUriForFile(activity, authority, outputFile)
    } else {
        Uri.fromFile(outputFile)
    }
    intent.putExtra(MediaStore.EXTRA_OUTPUT, outputUri)
    activity.startActivityForResult(intent, requestCode)
}