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private int doAddOrEdit = 1;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.addmodel);
Bundle bun = this.getIntent().getExtras();
doAddOrEdit = bun.getInt("which"); //bun空指针异常,但明明有定义啊。。。。
...
}
Bundle data = new Bundle();
data.putInt("which",1);
Intent intent = new Intent(Model.this,AddModel.class);
intent.putExtras(intent);
startActivity(intent);