package com.example.mybuttonfun;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import java.io.File;
import static android.os.Environment.getDataDirectory;
import static android.os.Environment.getDownloadCacheDirectory;
public class MainActivity extends AppCompatActivity {
private String path;
private String path1;
private String path2;
private File path3;
File[] path4;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button btn = findViewById(R.id.button);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// 响应事件
Toast.makeText(MainActivity.this,"测试按钮",Toast.LENGTH_SHORT).show();
path = Environment.getExternalStorageDirectory().getAbsolutePath();
Toast.makeText(MainActivity.this,path,Toast.LENGTH_SHORT).show();
//获取该程序的安装包路径
path1=getApplicationContext().getPackageResourcePath();
Toast.makeText(MainActivity.this,path1,Toast.LENGTH_SHORT).show();
//这个方法是获取某个应用在外部存储中的cache路径
path2=getExternalCacheDir().getAbsolutePath();
Toast.makeText(MainActivity.this,path2,Toast.LENGTH_SHORT).show();
path2=getExternalFilesDir("").getAbsolutePath();
Toast.makeText(MainActivity.this,path2,Toast.LENGTH_SHORT).show();
path2=getExternalCacheDir().getAbsolutePath();
Toast.makeText(MainActivity.this,path2,Toast.LENGTH_SHORT).show();
}
});
}
}
Android studio 35 获取Android目录路径
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