@Override PRotected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button button = (Button) findViewById(R.id.button); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { ProgressDialog progressDialog = new ProgressDialog(MainActivity.this); progressDialog.setTitle("进程对话框"); progressDialog.setMessage("加载中..."); progressDialog.setCancelable(true); progressDialog.show(); } }); }}
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